Earthquake Precursor Research ©GeoSeismic Labs 2006.

GeoSeismic Labs Reports: December 2006 All forecasts are based upon Quantitative Analysis using Empirical Methods. Any information related to a forecast expressed by GeoSeismic Labs is considered a test of a hypothesis, and experimental in nature.

GSL's Reports have Been Viewed   Times Since May 11, 2005

December 15-21, 2006

A Weekly Composite of Reviewed Infrasonic
Spectrograms & Associated Information
from Public Sources

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Strong Spectral Harmonic Component which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in California, Nevada, and Baja Mexico

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4.3 (Light)
Date-Time Saturday, December 16, 2006 at 06:14:05 (UTC)
= Coordinated Universal Time
Friday, December 15, 2006 at 10:14:05 PM
= local time at epicenter

Location 36.174°N, 120.292°W
Depth 9.8 km (6.1 miles)
Region CENTRAL CALIFORNIA
Distances 7 km (4 miles) ENE (58°) from Coalinga, CA
18 km (11 miles) W (259°) from Huron, CA
23 km (14 miles) NW (317°) from Avenal, CA
60 km (38 miles) WSW (253°) from Hanford, CA
193 km (120 miles) SE (132°) from San Jose City Hall, CA

Event ID nc51176849

Strong Spectral Harmonic Component which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in California, Nevada, and Baja Mexico

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AE Catalog Table of Contents

• All Infrasonic Spectrograms Captured During................................  November 2006

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• All Infrasonic Spectrograms Captured From..............................   December 1-7, 2006
• All Infrasonic Spectrograms Captured From............................   December 8-14, 2006
• All Infrasonic Spectrograms Captured From..........................   December 15-21, 2006
• All Infrasonic Spectrograms Captured From..........................   December 22-31, 2006

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• All Infrasonic Spectrograms Captured on........................................  December 15, 2006
• All Infrasonic Spectrograms Captured on........................................  December 16, 2006
• All Infrasonic Spectrograms Captured on........................................  December 17, 2006
• All Infrasonic Spectrograms Captured on........................................  December 18, 2006
• All Infrasonic Spectrograms Captured on........................................  December 19, 2006
• All Infrasonic Spectrograms Captured on........................................  December 20, 2006
• All Infrasonic Spectrograms Captured on........................................  December 21, 2006

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  Strong Global Earthquakes

• The No. Sumatra, Indonesia, M6.3 Earthquake ..............................  December 1, 2006
• The Sumbawa, Indonesia, M6.3 Earthquake ....................................  December 1, 2006
• The Kuril Islands, Russia M6.3 Earthquake ...................................  December 7, 2006
• The Celebes Sea M6.3 Earthquake .................................................  December 12, 2006

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  Pacific Plate's Stress Center Related Earthquakes

• The Tonga Region M4.9 Earthquake ................................................  December 1, 2006
• The Tonga Region M5.7 Earthquake ................................................  December 2, 2006
• The Fiji Islands Region M4.3 Earthquake .......................................  December 3, 2006
• The Fiji Islands Region M4.5 Earthquake .......................................  December 3, 2006
• The Hawaiian Islands, USA M4.4 Earthquake ................................  December 3, 2006
• The Vanuatu Island M5.1 Earthquake ..............................................  December 5, 2006
• The Hawaiian Islands, USA M3.4 Earthquake ................................  December 5, 2006
• The Tonga Region M5.2 Earthquake ................................................  December 8, 2006
• The Fiji Islands Region M4.7 Earthquake ....................................  December 10, 2006
• The Fiji Islands Region M4.6 Earthquake ....................................  December 14, 2006
• The Tonga Region M5.0 Earthquake ..............................................  December 17, 2006
• The Tonga Region M5.8 Earthquake ..............................................  December 17, 2006
• The Tonga Region M4.0 Earthquake ..............................................  December 17, 2006
• The Fiji Islands Region M4.6 Earthquake ....................................  December 18, 2006
• The Tonga Region M5.2 Earthquake ..............................................  December 19, 2006

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  North American Earthquakes of Special Interest

• The Mt. Saint Helens, WA M3.4 Earthquake ..................................  December 1, 2006
• The Mt. Saint Helens, WA M3.1 Earthquake ..................................  December 4, 2006
• The Mt. Saint Helens, WA M3.1 Earthquake ..................................  December 6, 2006
• The Timmins, Canada M4.2 Earthquake ..........................................  December 6, 2006
• The Mt. Saint Helens, WA M3.2 Earthquake ..................................  December 9, 2006
• The Penticton, Canada M3.3 Earthquake .......................................  December 11, 2006
• The Mt. Saint Helens, WA M3.1 Earthquake ................................  December 14, 2006
• The Mt. Saint Helens, WA M3.2 Earthquake ................................  December 15, 2006
• The Tellico Plains, TN M3.3 Earthquake ......................................  December 18, 2006
• The Garrett, WA M3.3 Earthquake ................................................  December 20, 2006
• The Morgan, UT M3.4 Earthquake .................................................  December 20, 2006

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  California, Nevada, and Baja Mexico Earthquakes

• The San Martin, CA M3.0 Earthquake ............................................  December 1, 2006
• The Guerrero Negro, Mexico M4.7 Earthquake ............................  December 1, 2006
• The Coso Junction, CA. M3.0 Earthquake ......................................  December 1, 2006
• The Toms Place, CA. M3.0 Earthquake ...........................................  December 1, 2006
• The Ocotillo, CA.M3.0 Earthquake ..................................................  December 5, 2006
• The Guaymas, Mexico M4.5 Earthquake .........................................  December 6, 2006
• The San Simeon, CA M3.0 Earthquake ...........................................  December 6, 2006
• The Coso Junction, CA. M3.1 Earthquake ......................................  December 7, 2006
• The Maneadero, Mexico M4.3 Earthquake ......................................  December 8, 2006
• The Ferndale, CA M3.3 Earthquake .................................................  December 8, 2006
• The Petrolia, CA M3.2 Earthquake ................................................  December 10, 2006
• The San Juan Bautista, CA M3.0 Earthquake .............................  December 10, 2006
• The Qualeys Camp, NV M3.7 Earthquake ....................................  December 10, 2006
• The Yucca Valley, CA M3.0 Earthquake .......................................  December 11, 2006
• The Maneadero, Mexico M4.0 Earthquake ....................................  December 11, 2006
• The Petrolia, CA M3.5 Earthquake ................................................  December 11, 2006
• The Coalinga, CA M3.9 Earthquake ................................................  December 15, 2006
• The Scottys Castle, CA M3.1 Earthquake .......................................  December 15, 2006
• The Coalinga, CA M4.3 Earthquake ................................................  December 15, 2006
• The Petrolia, CA M4.3 Earthquake ................................................  December 17, 2006
• The San Clemente Isl., CA M3.2 Earthquake ..............................  December 18, 2006
• The Petrolia, CA M3.3 Earthquake ................................................  December 19, 2006
• The Big Bear Lake, CA M3.0 Earthquake .....................................  December 19, 2006
• The Deep Springs, CA M3.4 Earthquake .......................................  December 19, 2006
• The Deep Springs, CA M4.0 Earthquake .......................................  December 19, 2006
• The Berkeley, CA M3.7 Earthquake ..............................................  December 20, 2006

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  California, Nevada, Baja Micro Quakes of Special Interest
  Note: * denotes an event which was expunged from the catalog after being reported.
  

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  Southern California Seismic Alert: San Jacinto Fault Zone

  The Loma Linda Fault is an Active Splay of the San Jacinto Fault Zone, which has been obscured for many years by urban expansion & land development.
  
  

• The Yucaipa M3.2 Foreshock & Loma Linda Precursor on.............  May 17, 2006
• San Jacinto Fault Zone & Loma Linda Precursor on.........................  May 21, 2006
  
  Note: The Cajon Seismic Gap is a locked segment along the Northern San Jacinto
  Fault Zone from Lytle Creek and Southeast to Riverside.The last strong earthquake
  in the Cajon Gap occurred in 1899 and possibly 1907.
  
  
• San Jacinto Fault Zone & Lytle Creek Precursor on..........................  May 22, 2006
• San Jacinto Fault Zone & Borrego Springs Precursor on...............  May 22, 2006
• San Jacinto Fault Zone & La Quinta Precursor on.............................  May 22, 2006
• San Jacinto Fault Zone & Anza Precursor on......................................  May 22, 2006
• San Jacinto Fault Zone & Loma Linda Precursor on..........................  May 24, 2006
  
  Note: The Anza Seismic Gap is a locked segment along the Southern San Jacinto
  Fault Zone from Anza and Southeast to Coyote Mountain. Micro quake activity
  within the gap is mainly constrained to two high stress regions concentrated at
  both ends of the asperity, and only at a depth of 15 km in the seismogenic zone,
  which is right above the upper limit of aseismic slip.
  
  
• San Jacinto Fault Zone & Anza (Seismic Gap) Precursor on..................  May 26, 2006
• San Jacinto Fault Zone & Anza Precursor on...........................................  May 26, 2006
• San Jacinto Fault Zone & Anza (Seismic Gap) Precursor on..................  May 26, 2006
• San Jacinto Fault Zone & Anza Precursor on............................................  May 27, 2006
• San Jacinto Fault Zone & Idylwild (Hot Springs Fault) Precursor on...  May 29, 2006
• San Jacinto Fault Zone & Borrego Spr. (Coyote Cr.) Precursor on.......  May 29, 2006
• San Jacinto Fault Zone & Valle Vista Precursor on................................  May 30, 2006
• San Jacinto Fault Zone & Anza Precursor on............................................  May 30, 2006
• San Jacinto Fault Zone & Ocotillo Wells Precursor on...........................  May 31, 2006
• San Jacinto Fault Zone & Ocotillo Wells Precursor on...........................  June 1, 2006
• San Jacinto Fault Zone & Borrego Springs Precursor on........................  June 1, 2006
• San Jacinto Fault Zone & Loma Linda Precursor on................................  June 1, 2006
• San Jacinto Fault Zone & Moreno Valley Precursor on...........................  June 1, 2006
• San Jacinto Fault Zone & Bombay Beach Precursor on...........................  June 1, 2006
• San Jacinto Fault Zone & Anza Precursor on...........................................  June 1, 2006
• San Jacinto Fault Zone & Bombay Beach Precursor on...........................  June 1, 2006
• San Jacinto Fault Zone & Mentone Precursor on.....................................  June 4, 2006
• San Jacinto Fault Zone & Ocotillo Wells Precursor on...........................  June 4, 2006
• San Jacinto Fault Zone & Wrightwood Precursor on................................  June 5, 2006
• San Jacinto Fault Zone & Loma Linda Precursor on................................  June 5, 2006
• San Jacinto Fault Zone & (Clark Fault) Precursor on.............................  June 5, 2006
• San Jacinto Fault Zone & Salton City (Coyote Creek) Precursor on...  June 12, 2006
• San Jacinto Fault Zone & Northern Segment Precursor on..................  June 15, 2006
• San Jacinto Fault Zone & Anza Seismic Gap Precursor on.............  October 10, 2006
• San Jacinto Fault Zone & Clark Fault Precursor on.........................  October 10, 2006

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• The State of Stress in the Anza  Seismic Gap
• Fault Processes within the Anza  Seismic Gap
• An Analysis of Stress in the Anza  Seismic Gap
• Concerns for an Anza Seismic Gap  Earthquake
• Article on Seismicity at the Northern San Jacinto Fault Zone's  Seismic Gap
• Article on Delineation of Faulting along the  Loma Linda Fault
• Article on Complcations at the  Right-Step Over to the San Andreas Fault.

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• Instructions on How to Make a Donation to the Lab with  Paypal.

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• Prediction of Earthquakes With AE/MS? Why Not
  
• Introduction: Acoustic Emissions and Earthquakes
  
• Acoustic emission and earthquake precursors
  
• Topic: Acoustic Emission Precursors of Large California Earthquakes
  
• Technologies and Applications Acoustic Emission* (AE)
  
• Rock Mechanics - Laboratory and Theoretical Studies
  
• Fracture experiment of large rock samples with acoustic emission
  
• AE:Back to Basics
  
• Lithospheric Deformation: Stress & Strain
  
• The San Andreas Fault: Stress & Heat Flow
  
• ULF Electromagnetic & Acoustic Emissions (AE) as Precursor
  

Caption:The inferred Mean Average Unclamping Incident Level Observed from
the Pacific & North American Plate Boundary in Southern California.
Major Global Earthquakes have been Preceded by abrupt increases in the
Unclamping Incident Level, as observed during both   December 2004, and   October 2005.

The Pacific Plate is inferred to have transmitted the changes observed here
from a large increase in lithospheric stress along the Sunda Trench, and the
Eurasian Plate. The inference was first made after the M9.2 Great Sumatra
Earthquake, which was preceded by an abrupt increase in the local Unclamping
Incident Level. Since then, I've experimentally utilized the Unclamping Incident
Level as a means for monitoring global tectonic stress levels, with quite
excellent results


Caption: Map of Global Tectonic Plates and Volcanoes

My philosophy is quite simply:
"The Plate Boundary including the western edge of the (ECSZ)
Eastern California Shear Zone is the interface for the transmission of
Infrasonic, or (AE) Acoustic Emissions. Secondary faults are the handshake
lines, which handle the nucleation of the stress..The data lines are the
harmonics, which indicate the severity and the approximate lattitude of the
location by having a different amplitude and frequency for each of the specific
harmonics in the infrasound spectrum. I monitor and record these
frequencies, and analyze the results, which allows me to publish a specific
forecast of the current regional lithospheric stress level. It's not magic, just
good old fashioned hard work while conducting an analysis. I believe
these infrasonic signals are the same ones, which enable many pets,
wild animals, and humans to sense an increase in the level of
stress before an earthquake happens. Also, I utilize the Spring Tides
Lunar Phases and Solar Activity level in my forecasts."

-Frank Condon
Independent Earthquake Precursor Research Consultant

NOTE: A more detailed version is available
as my  Statement Summary.

Caption:The inferred Unclamping Incident Level Observed from
the Pacific & North American Plate Boundary in Southern California.
Major Global Earthquakes have been Preceded by abrupt increases in the
Unclamping Incident Level, as observed during both   December 2004,
  October 2005., and   September 2006.

28 SEP 2006 (271)

ot = 06:22:11.29 +/- 0.13 SAMOA ISLANDS REGION
lat = -16.570 +/- 3.9
lon = -172.036 +/- 3.3 MAGNITUDE 6.9 (HRV)
dep = 39.1 (depth phases)

195 km (120 miles) ESE of Hihifo, Tonga
290 km (180 miles) SSW of PAGO PAGO, American Samoa
610 km (380 miles) NE of NUKU'ALOFA, Tonga
2595 km (1610 miles) NNE of Auckland, New Zealand

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8 OCT 2006 (281)

ot = 13:50:24.65 +/- 0.28 TONGA REGION
lat = -23.566 +/- 9.2
lon = -175.258 +/- 8.2 MAGNITUDE 5.8 (GS)
dep = 10.0 (assigned)

270 km (170 miles) S of NUKU'ALOFA, Tonga
470 km (295 miles) SE of Ndoi Island, Fiji
565 km (350 miles) SSW of Neiafu, Tonga
1740 km (1080 miles) NE of Auckland, New Zealand

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December 15, 2006

00:00-03:00 UTC

Return to Table of Contents
Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.1 2006/12/15 02:12:54 33.650 -116.716 15.7 11 km ( 7 mi) S of Idyllwild, CA
ML1.9 2006/12/15 01:03:52 37.556 -118.873 7.1 13 km ( 8 mi) SE of Mammoth Lakes, CA

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03:00 - 06:00 UTC

Return to Table of Contents
Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

M4.5 2006/12/15 05:26:33 1.759 96.983 30.0 NIAS REGION, INDONESIA

ML1.6 2006/12/15 04:42:36 32.869 -116.049 5.1 15 km ( 9 mi) NNW of Ocotillo, CA

M4.2 2006/12/15 04:40:11 34.719 23.157 53.5 CRETE, GREECE
M4.4 2006/12/15 04:38:52 1.663 96.990 30.0 NIAS REGION, INDONESIA

ML1.9 2006/12/15 03:47:23 38.817 -122.801 0.0 2 km ( 1 mi) NNE of The Geysers, CA

M4.4 2006/12/15 03:39:25 -4.943 152.869 85.0 NEW BRITAIN REGION, PAPUA NEW GUINEA

ML1.3 2006/12/15 03:16:18 33.268 -116.054 6.2 9 km ( 6 mi) WSW of Salton City, CA

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06:00-09:00 UTC

Return to Table of Contents
Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.0 2006/12/15 07:36:05 36.045 -117.331 4.1 26 km ( 16 mi) WSW of Telescope Peak, CA

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09:00-12:00 UTC

Return to Table of Contents
Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.4 2006/12/15 11:31:29 33.203 -115.634 3.6 4 km ( 2 mi) N of Obsidian Butte, CA
ML1.7 2006/12/15 11:26:44 37.489 -114.626 1.5 13 km ( 8 mi) E of Helene, NV
ML1.2 2006/12/15 11:07:16 38.830 -122.796 2.4 4 km ( 2 mi) NNE of The Geysers, CA

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12:00-15:00 UTC

Return to Table of Contents
Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.4 2006/12/15 14:06:26 34.488 -116.450 7.2 37 km ( 23 mi) SW of Ludlow, CA
ML1.5 2006/12/15 14:00:37 34.344 -118.593 12.7 6 km ( 4 mi) SSW of Valencia, CA

M5.0 2006/12/15 12:59:00 15.904 -60.691 55.1 GUADELOUPE REGION, LEEWARD ISLANDS

ML1.4 2006/12/15 12:47:56 37.895 -121.980 13.3 6 km ( 4 mi) NE of Alamo, CA

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15:00-18:00 UTC

Return to Table of Contents
Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.1 2006/12/15 17:23:00 32.815 -115.977 2.6 9 km ( 5 mi) NNE of Ocotillo, CA
ML1.6 2006/12/15 17:08:02 38.812 -122.763 11.2 4 km ( 3 mi) ENE of The Geysers, CA

M5.4 2006/12/15 17:01:10 46.460 153.028 10.0 KURIL ISLANDS
M5.5 2006/12/15 16:59:02 46.496 152.953 4.3 KURIL ISLANDS

ML2.1 2006/12/15 16:53:49 33.801 -116.180 8.7 10 km ( 6 mi) NNE of Indio, CA

M4.2 2006/12/15 16:47:59 51.447 15.993 5.0 POLAND
M4.4 2006/12/15 16:36:57 47.362 152.530 10.0 KURIL ISLANDS

ML1.2 2006/12/15 16:33:21 35.695 -121.152 6.0 7 km ( 4 mi) NNE of San Simeon, CA
M2.0 2006/12/15 16:19:43 32.811 -115.978 1.0 8 km ( 5 mi) NNE of Ocotillo, CA
ML2.0 2006/12/15 16:17:08 34.071 -116.808 3.8 4 km ( 2 mi) SSE of Mt. San Gorgonio, CA
ML1.3 2006/12/15 16:05:13 37.156 -117.376 11.6 14 km ( 9 mi) NNW of Scottys Castle, CA
ML2.2 2006/12/15 15:53:50 32.803 -115.977 0.7 7 km ( 5 mi) NNE of Ocotillo, CA
ML2.3 2006/12/15 15:51:45 32.807 -115.981 1.9 8 km ( 5 mi) N of Ocotillo, CA
ML1.4 2006/12/15 15:03:59 36.134 -117.903 4.0 11 km ( 7 mi) NNE of Coso Junction, CA

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18:00-21:00 UTC

Return to Table of Contents
Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.7 2006/12/15 20:53:54 36.963 -121.589 6.1 6 km ( 3 mi) S of Gilroy, CA
ML2.1 2006/12/15 20:19:46 36.034 -114.917 0.0 10 km ( 6 mi) E of Henderson, NV
ML1.5 2006/12/15 19:56:04 36.156 -120.295 0.2 6 km ( 4 mi) ENE of Coalinga, CA
ML2.4 2006/12/15 19:50:25 36.175 -120.296 9.0 7 km ( 4 mi) NE of Coalinga, CA
ML1.2 2006/12/15 19:46:20 33.219 -116.085 5.5 9 km ( 6 mi) NNE of Ocotillo Wells, CA

ML3.9 2006/12/15 19:21:55 36.170 -120.289 9.6 7 km ( 4 mi) ENE of Coalinga, CA

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21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.9 2006/12/15 23:59:42 38.759 -122.733 2.7 4 km ( 2 mi) WSW of Anderson Springs, CA

M5.8 2006/12/15 23:57:12 -35.090 -105.406 10.0 SOUTHERN EAST PACIFIC RISE

ML1.2 2006/12/15 22:58:23 34.318 -116.467 10.0 22 km ( 14 mi) NNW of Yucca Valley, CA

M5.1 2006/12/15 22:58:09 38.627 72.664 84.6 TAJIKISTAN

ML1.5 2006/12/15 22:34:49 34.014 -117.252 18.5 4 km ( 2 mi) S of Loma Linda, CA

ML3.1 2006/12/15 22:20:25 18.607 -65.799 70.2 20 km ( 13 mi) NNE of Suárez, PR

ML1.5 2006/12/15 21:52:11 33.848 -117.488 2.6 8 km ( 5 mi) ESE of Corona, CA
ML1.3 2006/12/15 21:50:06 36.177 -120.329 9.9 5 km ( 3 mi) NE of Coalinga, CA
ML1.2 2006/12/15 21:36:47 35.989 -120.542 4.0 14 km ( 9 mi) NW of Parkfield, CA
ML1.2 2006/12/15 21:15:24 34.297 -117.658 8.3 1 km ( 1 mi) NW of Mt. Baldy, CA

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December 16, 2006

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.4 2006/12/16 02:50:45 33.635 -117.009 15.4 11 km ( 7 mi) SE of Winchester, CA
ML1.8 2006/12/16 02:43:34 36.457 -121.034 5.2 13 km ( 8 mi) SE of Pinnacles, CA

ML3.0 2006/12/16 02:38:56 18.497 -66.715 92.9 4 km ( 3 mi) NNE of Arecibo, PR

ML2.0 2006/12/16 02:26:05 36.167 -120.288 11.2 7 km ( 4 mi) ENE of Coalinga, CA

ML3.4 2006/12/16 01:43:04 19.663 -67.592 16.6 143 km ( 89 mi) NNW of Isabela, PR

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03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML3.2 2006/12/16 05:38:06 46.195 -122.189 0.6 1 km ( 1 mi) SW of Mount St. Helens Volcano, WA

ML2.1 2006/12/16 05:23:10 41.045 -121.849 5.2 6 km ( 4 mi) ENE of Big Bend, CA

ML3.1 2006/12/16 04:18:23 36.836 -117.473 5.5 25 km ( 15 mi) SSW of Scottys Castle, CA

ML1.2 2006/12/16 04:11:36 36.008 -117.799 2.5 14 km ( 9 mi) ESE of Coso Junction, CA
ML2.5 2006/12/16 03:59:56 36.169 -120.297 9.6 6 km ( 4 mi) ENE of Coalinga, CA

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06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.5 2006/12/16 08:46:04 36.159 -120.285 11.2 7 km ( 4 mi) ENE of Coalinga, CA
ML1.2 2006/12/16 08:33:38 36.582 -121.078 6.8 8 km ( 5 mi) NE of Pinnacles, CA
ML1.4 2006/12/16 08:03:18 36.173 -120.291 11.3 7 km ( 4 mi) ENE of Coalinga, CA

ML3.5 2006/12/16 07:50:34 18.997 -65.216 103.0 77 km ( 48 mi) N of Culebra, PR

ML1.3 2006/12/16 07:50:12 36.173 -120.289 11.4 7 km ( 4 mi) ENE of Coalinga, CA
ML2.4 2006/12/16 06:39:18 32.236 -115.330 8.1 22 km ( 13 mi) WSW of Guadalupe Victoria, Mexico
ML1.9 2006/12/16 06:25:07 36.159 -120.296 11.0 6 km ( 4 mi) ENE of Coalinga, CA
ML2.4 2006/12/16 06:20:36 36.175 -120.291 10.2 7 km ( 4 mi) ENE of Coalinga, CA
ML2.1 2006/12/16 06:15:15 33.923 -117.082 15.6 10 km ( 6 mi) W of Beaumont, CA

ML4.3 2006/12/16 06:14:05 36.174 -120.292 9.8 7 km ( 4 mi) ENE of Coalinga, CA

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09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.4 2006/12/16 11:48:45 38.532 -118.286 7.1 10 km ( 6 mi) WNW of Luning, NV
ML2.1 2006/12/16 09:50:25 38.818 -122.789 1.2 3 km ( 2 mi) NE of The Geysers, CA

ML3.1 2006/12/16 09:28:24 19.137 -66.402 24.8 74 km ( 46 mi) N of Breñas, PR

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12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML3.5 2006/12/16 14:25:47 19.249 -64.784 50.4 76 km ( 47 mi) NW of Settlement, British Virgin Islands

ML2.6 2006/12/16 14:09:01 32.093 -115.492 11.9 42 km ( 26 mi) WSW of Guadalupe Victoria, Mexico
ML1.3 2006/12/16 13:46:25 35.698 -121.151 6.2 7 km ( 4 mi) NNE of San Simeon, CA
ML1.3 2006/12/16 13:39:16 36.176 -120.296 11.1 7 km ( 4 mi) NE of Coalinga, CA
ML1.9 2006/12/16 13:28:33 36.463 -121.040 7.9 12 km ( 7 mi) SE of Pinnacles, CA
ML1.6 2006/12/16 13:27:55 38.837 -122.842 0.0 5 km ( 3 mi) NW of The Geysers, CA
ML1.4 2006/12/16 13:15:30 34.059 -117.006 15.0 5 km ( 3 mi) NE of Yucaipa, CA
ML1.4 2006/12/16 13:11:24 34.428 -118.724 11.5 7 km ( 5 mi) ENE of Piru, CA
ML1.6 2006/12/16 12:57:05 38.818 -122.799 3.3 2 km ( 1 mi) NNE of The Geysers, CA
ML2.6 2006/12/16 12:56:48 31.853 -116.300 6.0 30 km ( 18 mi) ENE of Maneadero, Mexico
ML1.7 2006/12/16 12:32:14 36.191 -120.312 10.6 7 km ( 4 mi) NE of Coalinga, CA

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15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.4 2006/12/16 17:13:43 36.544 -121.053 6.7 8 km ( 5 mi) E of Pinnacles, CA
ML1.5 2006/12/16 15:54:16 34.805 -118.921 17.4 3 km ( 2 mi) SE of Frazier Park, CA
ML1.6 2006/12/16 15:50:17 33.963 -117.234 10.3 4 km ( 3 mi) N of Moreno Valley, CA
ML1.4 2006/12/16 15:46:06 37.624 -118.860 4.1 11 km ( 7 mi) E of Mammoth Lakes, CA
ML2.3 2006/12/16 15:32:12 32.248 -115.341 6.0 22 km ( 14 mi) WSW of Guadalupe Victoria, Mexico
ML1.6 2006/12/16 15:10:57 36.163 -120.280 11.0 7 km ( 5 mi) ENE of Coalinga, CA

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18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.5 2006/12/16 20:56:55 38.823 -122.800 2.0 3 km ( 2 mi) NNE of The Geysers, CA
ML1.6 2006/12/16 20:06:06 38.823 -122.802 0.2 3 km ( 2 mi) N of The Geysers, CA
ML1.1 2006/12/16 20:02:14 35.708 -121.037 9.9 14 km ( 9 mi) WSW of Lake Nacimiento, CA
ML2.8 2006/12/16 19:04:26 32.815 -117.600 7.6 32 km ( 20 mi) W of La Jolla, CA
ML1.0 2006/12/16 18:58:49 35.812 -118.046 12.2 21 km ( 13 mi) NE of Onyx, CA
ML1.9 2006/12/16 18:23:29 37.514 -118.195 1.5 24 km ( 15 mi) NE of Bishop, CA
ML1.7 2006/12/16 18:20:55 32.834 -116.636 19.9 10 km ( 6 mi) W of Pine Valley, CA

ML4.6 2006/12/16 18:07:11 51.210 -177.678 36.2 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA

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21:00-24:00 UTC

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ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.0 2006/12/16 23:32:41 39.944 -122.907 0.1 33 km ( 21 mi) ENE of Covelo, CA

ML4.7 2006/12/16 21:35:58 51.147 -177.775 49.4 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA

ML4.0 2006/12/16 21:28:00 18.582 -68.504 171.6 22 km ( 14 mi) E of Higüey, Dominican Republic

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December 17, 2006

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.4 2006/12/17 00:11:48 32.282 -115.327 7.9 20 km ( 13 mi) W of Guadalupe Victoria, Mexico
ML2.8 2006/12/17 00:08:24 40.492 -124.499 24.3 22 km ( 14 mi) WSW of Ferndale, CA

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03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.6 2006/12/17 05:50:05 38.809 -122.793 2.8 2 km ( 1 mi) NE of The Geysers, CA

ML3.1 2006/12/17 05:47:15 19.061 -66.960 73.3 63 km ( 39 mi) N of Isabela, PR

ML2.2 2006/12/17 04:10:25 38.812 -122.796 2.1 2 km ( 1 mi) NNE of The Geysers, CA
ML1.9 2006/12/17 03:56:59 34.511 -118.783 10.2 12 km ( 7 mi) N of Piru, CA
ML2.7 2006/12/17 03:55:35 34.519 -118.778 16.2 13 km ( 8 mi) N of Piru, CA
ML1.3 2006/12/17 03:43:21 36.022 -120.599 0.0 20 km ( 13 mi) NW of Parkfield, CA
ML1.2 2006/12/17 03:39:03 37.531 -118.823 8.7 13 km ( 8 mi) WSW of Toms Place, CA

M4.6 2006/12/17 03:17:57 18.336 -100.950 104.2 GUERRERO, MEXICO

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06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.8 2006/12/17 08:51:02 35.624 -120.745 4.3 6 km ( 4 mi) W of Paso Robles, CA
ML1.6 2006/12/17 08:45:39 37.576 -118.870 6.5 12 km ( 7 mi) SE of Mammoth Lakes, CA

M4.8 2006/12/17 08:41:42 47.089 152.877 10.0 KURIL ISLANDS

ML1.2 2006/12/17 08:10:14 37.431 -115.965 0.0 38 km ( 24 mi) SW of Tempiute, NV
ML2.2 2006/12/17 08:06:34 37.372 -121.733 5.8 8 km ( 5 mi) E of Alum Rock, CA

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09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.3 2006/12/17 11:36:22 38.831 -122.798 1.3 4 km ( 2 mi) NNE of The Geysers, CA
ML1.5 2006/12/17 11:27:02 38.822 -122.823 2.1 3 km ( 2 mi) NNW of The Geysers, CA
ML2.2 2006/12/17 11:21:00 38.830 -122.796 1.4 4 km ( 2 mi) NNE of The Geysers, CA
ML1.1 2006/12/17 10:54:57 39.357 -119.993 4.8 13 km ( 8 mi) NNW of Incline Village-Crystal Bay, NV
ML1.7 2006/12/17 10:37:24 37.342 -121.716 1.4 10 km ( 6 mi) ESE of Alum Rock, CA
ML1.1 2006/12/17 10:03:29 36.838 -121.462 4.9 6 km ( 4 mi) W of Hollister, CA

ML3.3 2006/12/17 09:27:11 19.006 -65.468 28.9 75 km ( 47 mi) NNE of Luquillo, PR

M5.0 2006/12/17 09:04:28 -0.128 125.067 80.8 MOLUCCA SEA

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12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.2 2006/12/17 14:35:13 37.000 -121.194 0.2 25 km ( 15 mi) NE of Hollister, CA
ML1.4 2006/12/17 14:32:57 35.934 -120.490 10.5 7 km ( 4 mi) NW of Parkfield, CA
ML2.3 2006/12/17 14:18:25 37.888 -118.168 10.0 42 km ( 26 mi) S of Tonopah Junction, NV
ML1.2 2006/12/17 14:14:48 33.267 -116.106 3.5 14 km ( 9 mi) WSW of Salton City, CA
ML1.2 2006/12/17 14:04:03 38.808 -122.794 0.7 2 km ( 1 mi) NE of The Geysers, CA
ML1.3 2006/12/17 13:26:43 34.625 -116.558 10.6 38 km ( 24 mi) WSW of Ludlow, CA
ML1.8 2006/12/17 13:21:49 36.909 -121.637 6.1 2 km ( 2 mi) N of Aromas, CA

M5.8 2006/12/17 12:51:12 -21.279 -174.462 41.0 TONGA
M5.0 2006/12/17 12:40:12 -21.233 -174.485 31.8 TONGA

ML2.1 2006/12/17 12:25:18 38.941 -119.738 0.0 0 km ( 0 mi) E of Gardnerville, NV

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15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.8 2006/12/17 17:17:25 32.685 -116.049 8.8 8 km ( 5 mi) SW of Ocotillo, CA
ML1.3 2006/12/17 17:11:57 36.636 -121.120 8.7 12 km ( 7 mi) N of Pinnacles, CA
ML1.4 2006/12/17 16:49:33 33.506 -116.449 8.0 21 km ( 13 mi) ESE of Anza, CA
ML2.1 2006/12/17 16:32:47 32.982 -115.559 21.4 2 km ( 1 mi) WNW of Brawley, CA
ML1.8 2006/12/17 16:10:22 32.679 -116.061 3.0 9 km ( 6 mi) SW of Ocotillo, CA

ML4.3 2006/12/17 15:13:40 40.401 -125.054 2.8 66 km ( 41 mi) W of Petrolia, CA

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18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

M4.0 2006/12/17 19:57:14 -20.642 -174.537 15.0 TONGA

ML1.9 2006/12/17 19:33:31 37.441 -118.560 14.3 4 km ( 3 mi) NE of Round Valley, CA
ML2.0 2006/12/17 19:30:35 37.441 -118.557 15.0 5 km ( 3 mi) NE of Round Valley, CA

M4.8 2006/12/17 19:24:12 46.848 154.809 10.0 EAST OF THE KURIL ISLANDS
M4.6 2006/12/17 19:05:41 -58.995 -25.693 25.2 SOUTH SANDWICH ISLANDS REGION

ML1.3 2006/12/17 18:50:36 37.438 -118.847 2.4 20 km ( 13 mi) SW of Toms Place, CA

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21:00-24:00 UTC Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.5 2006/12/17 23:55:55 37.726 -122.541 8.0 3 km ( 2 mi) W of San Francisco Zoo
ML1.6 2006/12/17 23:10:32 38.825 -122.796 2.0 3 km ( 2 mi) NNE of The Geysers, CA

M5.8 2006/12/17 21:39:16 0.638 100.041 30.0 NORTHERN SUMATRA, INDONESIA
M5.8 2006/12/17 21:10:21 4.891 95.059 30.0 NORTHERN SUMATRA, INDONESIA

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December 18, 2006

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.5 2006/12/18 02:59:46 38.820 -122.791 0.8 3 km ( 2 mi) NNE of The Geysers, CA
ML1.5 2006/12/18 00:31:41 33.194 -115.592 1.0 5 km ( 3 mi) ENE of Obsidian Butte, CA
ML1.5 2006/12/18 00:12:33 35.721 -121.031 5.6 14 km ( 8 mi) W of Lake Nacimiento, CA

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03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.0 2006/12/18 05:28:03 32.848 -117.632 6.0 35 km ( 22 mi) W of La Jolla, CA
ML1.7 2006/12/18 05:18:43 33.983 -116.827 12.1 9 km ( 5 mi) NE of Banning, CA
ML1.8 2006/12/18 04:56:59 35.962 -117.975 4.8 10 km ( 6 mi) SSW of Coso Junction, CA

M4.6 2006/12/18 03:42:11 -23.343 -179.887 517.0 SOUTH OF THE FIJI ISLANDS

ML2.2 2006/12/18 03:17:36 38.794 -122.756 2.5 4 km ( 3 mi) E of The Geysers, CA

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06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.5 2006/12/18 08:56:45 38.713 -119.560 10.0 21 km ( 13 mi) E of Markleeville, CA
ML1.8 2006/12/18 08:49:37 36.393 -120.673 14.4 3 km ( 2 mi) S of New Idria, CA
ML2.0 2006/12/18 08:45:24 39.436 -123.297 3.4 6 km ( 4 mi) NE of Willits, CA

ML3.3 2006/12/18 08:34:27 35.360 -84.350 17.8 5 km ( 3 mi) W of Tellico Plains, TN

ML1.7 2006/12/18 08:22:05 38.817 -122.790 0.0 3 km ( 2 mi) NE of The Geysers, CA

ML3.3 2006/12/18 07:32:01 19.183 -66.859 21.5 78 km ( 48 mi) N of Camuy, PR

ML1.1 2006/12/18 06:44:22 33.358 -116.379 13.9 12 km ( 8 mi) N of Borrego Springs, CA
ML1.8 2006/12/18 06:20:17 36.688 -121.320 5.4 11 km ( 7 mi) S of Tres Pinos, CA
ML2.1 2006/12/18 06:08:37 32.274 -115.325 6.0 20 km ( 13 mi) W of Guadalupe Victoria, Mexico

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09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML3.2 2006/12/18 11:01:46 33.172 -118.685 0.0 17 km ( 11 mi) NNW of San Clemente Is., CA (NW tip)

ML3.2 2006/12/18 11:01:12 19.111 -64.325 60.4 42 km ( 26 mi) N of Settlement, British Virgin Islands

M4.4 2006/12/18 10:27:50 -13.623 -69.986 266.7 SOUTHERN PERU

ML1.2 2006/12/18 09:02:08 36.105 -120.725 7.4 19 km ( 12 mi) ENE of San Ardo, CA
ML1.5 2006/12/18 09:00:58 32.937 -116.234 13.5 25 km ( 15 mi) SSW of Ocotillo Wells, CA

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12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.4 2006/12/18 14:57:29 36.211 -119.819 20.1 2 km ( 1 mi) N of Stratford, CA
ML2.4 2006/12/18 14:09:26 32.272 -115.340 6.0 22 km ( 14 mi) W of Guadalupe Victoria, Mexico
ML2.1 2006/12/18 13:41:59 32.592 -115.820 4.5 23 km ( 14 mi) SE of Ocotillo, CA
ML1.7 2006/12/18 12:37:21 32.591 -115.820 4.4 23 km ( 15 mi) SE of Ocotillo, CA

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15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.6 2006/12/18 17:37:21 33.172 -116.579 15.0 11 km ( 7 mi) N of Julian, CA
ML1.7 2006/12/18 17:20:04 32.689 -116.039 9.1 7 km ( 4 mi) SW of Ocotillo, CA

M5.3 2006/12/18 16:59:40 13.421 145.881 42.7 GUAM REGION

ML1.2 2006/12/18 16:58:51 33.954 -116.808 17.8 6 km ( 4 mi) NW of Cabazon, CA
ML1.0 2006/12/18 16:15:39 32.687 -116.033 9.1 7 km ( 4 mi) SSW of Ocotillo, CA
ML2.6 2006/12/18 16:05:43 32.680 -116.056 7.1 9 km ( 5 mi) SW of Ocotillo, CA
ML1.6 2006/12/18 15:45:08 33.721 -116.824 15.5 8 km ( 5 mi) ESE of Valle Vista, CA

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18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.7 2006/12/18 20:44:01 36.024 -120.590 3.9 20 km ( 12 mi) NW of Parkfield, CA
ML1.3 2006/12/18 20:38:29 34.580 -116.269 10.2 19 km ( 12 mi) SSW of Ludlow, CA
ML1.0 2006/12/18 20:37:09 36.128 -117.863 4.2 12 km ( 7 mi) NE of Coso Junction, CA
ML2.7 2006/12/18 19:48:04 38.818 -122.790 0.6 3 km ( 2 mi) NE of The Geysers, CA
ML1.5 2006/12/18 18:34:33 35.050 -118.321 0.0 13 km ( 8 mi) WNW of Mojave, CA
ML1.7 2006/12/18 18:23:12 36.838 -121.456 3.3 5 km ( 3 mi) W of Hollister, CA

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21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.9 2006/12/18 23:21:41 37.467 -118.843 9.1 18 km ( 11 mi) SW of Toms Place, CA
ML2.0 2006/12/18 23:16:12 32.311 -115.320 6.0 20 km ( 12 mi) W of Guadalupe Victoria, Mexico
ML1.8 2006/12/18 21:12:31 34.012 -117.487 1.4 1 km ( 0 mi) SE of Glen Avon, CA
ML1.9 2006/12/18 21:05:59 34.847 -118.912 12.5 3 km ( 2 mi) WNW of Lebec, CA

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December 19, 2006

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.3 2006/12/19 01:09:47 36.838 -121.454 3.2 5 km ( 3 mi) WSW of Hollister, CA
ML1.1 2006/12/19 00:49:40 38.796 -122.753 3.1 5 km ( 3 mi) E of The Geysers, CA
ML1.6 2006/12/19 00:42:10 33.718 -116.059 9.7 11 km ( 7 mi) ENE of Coachella, CA
ML2.3 2006/12/19 00:03:07 35.596 -120.747 5.8 6 km ( 4 mi) NW of Templeton, CA

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03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

M5.0 2006/12/19 05:05:06 18.260 146.980 35.0 PAGAN REGION, NORTHERN MARIANA ISLANDS

ML2.1 2006/12/19 04:06:41 36.164 -120.276 11.0 8 km ( 5 mi) ENE of Coalinga, CA
ML2.5 2006/12/19 03:40:04 31.986 -116.285 6.0 34 km ( 21 mi) ENE of Ensenada, Mexico
ML1.2 2006/12/19 03:16:00 34.500 -118.106 14.9 8 km ( 5 mi) ENE of Acton, CA

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06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

M4.4 2006/12/19 08:57:10 35.614 59.118 33.4 NORTHEASTERN IRAN

ML1.9 2006/12/19 08:39:42 34.507 -118.101 13.3 8 km ( 5 mi) S of Palmdale, CA
ML1.7 2006/12/19 08:20:01 38.891 -123.022 2.0 10 km ( 6 mi) N of Cloverdale, CA
ML1.7 2006/12/19 08:01:14 34.343 -116.749 3.6 13 km ( 8 mi) NE of Big Bear City, CA
ML1.9 2006/12/19 07:39:48 38.780 -122.761 0.0 4 km ( 3 mi) ESE of The Geysers, CA
ML1.6 2006/12/19 07:26:23 34.344 -116.751 4.2 12 km ( 8 mi) NE of Big Bear City, CA
ML1.4 2006/12/19 07:24:56 34.343 -116.751 3.6 12 km ( 8 mi) NE of Big Bear City, CA

ML3.0 2006/12/19 07:15:51 34.345 -116.753 2.6 12 km ( 8 mi) NE of Big Bear City, CA

ML1.8 2006/12/19 07:15:49 34.345 -116.750 3.0 13 km ( 8 mi) NE of Big Bear City, CA
ML1.6 2006/12/19 06:44:42 37.533 -118.844 0.5 15 km ( 9 mi) WSW of Toms Place, CA

M4.5 2006/12/19 06:43:42 46.626 151.515 88.5 KURIL ISLANDS

ML3.0 2006/12/19 06:37:59 19.414 -155.639 3.6 26 km ( 16 mi) E of Honaunau-Napoopoo, HI

ML3.3 2006/12/19 06:36:28 40.342 -124.458 18.9 15 km ( 9 mi) W of Petrolia, CA

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09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.5 2006/12/19 11:08:52 34.345 -116.750 3.9 13 km ( 8 mi) NE of Big Bear City, CA
ML1.9 2006/12/19 09:38:26 36.165 -120.276 10.9 8 km ( 5 mi) ENE of Coalinga, CA
ML1.7 2006/12/19 09:22:16 38.834 -122.799 1.9 4 km ( 3 mi) N of The Geysers, CA
ML2.0 2006/12/19 09:16:17 34.345 -116.752 3.9 13 km ( 8 mi) NE of Big Bear City, CA
ML2.4 2006/12/19 09:15:19 34.340 -116.751 3.2 12 km ( 8 mi) NE of Big Bear City, CA
ML1.2 2006/12/19 09:14:09 34.348 -116.750 4.6 13 km ( 8 mi) NE of Big Bear City, CA

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12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

M4.5 2006/12/19 14:06:47 7.146 -78.873 10.0 PANAMA

ML1.1 2006/12/19 14:03:30 35.955 -118.045 12.9 13 km ( 8 mi) SW of Coso Junction, CA

M5.2 2006/12/19 12:48:17 2.537 98.145 67.2 NORTHERN SUMATRA, INDONESIA

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15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.1 2006/12/19 17:54:33 38.820 -122.787 4.5 3 km ( 2 mi) NE of The Geysers, CA
ML1.1 2006/12/19 17:38:08 37.486 -118.185 7.0 22 km ( 14 mi) NW of Deep Springs, CA
ML2.1 2006/12/19 17:07:19 32.690 -116.053 8.7 8 km ( 5 mi) SW of Ocotillo, CA
ML2.7 2006/12/19 15:53:35 32.684 -116.055 8.4 8 km ( 5 mi) SW of Ocotillo, CA
ML1.5 2006/12/19 15:44:08 33.200 -116.715 9.7 5 km ( 3 mi) ENE of Mesa Grande, CA
ML2.7 2006/12/19 15:36:09 37.493 -118.191 5.8 23 km ( 14 mi) NW of Deep Springs, CA
ML1.6 2006/12/19 15:29:16 34.339 -116.746 3.3 12 km ( 8 mi) NE of Big Bear City, CA
ML1.2 2006/12/19 15:28:25 37.508 -118.185 7.0 23 km ( 15 mi) NW of Deep Springs, CA

ML4.0 2006/12/19 15:21:42 37.493 -118.188 9.2 23 km ( 14 mi) NW of Deep Springs, CA
ML3.4 2006/12/19 15:18:40 37.491 -118.191 10.9 23 km ( 14 mi) NW of Deep Springs, CA

ML2.8 2006/12/19 15:15:19 37.492 -118.189 12.1 23 km ( 14 mi) NW of Deep Springs, CA
ML2.5 2006/12/19 15:10:10 37.493 -118.189 12.6 23 km ( 14 mi) NW of Deep Springs, CA

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18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

M4.5 2006/12/19 20:44:38 24.748 122.260 35.0 TAIWAN REGION

ML1.1 2006/12/19 20:39:31 34.507 -118.096 14.1 8 km ( 5 mi) S of Palmdale, CA
ML1.0 2006/12/19 20:28:38 36.066 -117.707 3.5 22 km ( 14 mi) E of Coso Junction, CA
ML1.9 2006/12/19 20:04:17 32.696 -116.047 8.0 7 km ( 4 mi) SW of Ocotillo, CA

M5.2 2006/12/19 19:58:28 -20.854 -174.442 10.0 TONGA

ML1.6 2006/12/19 18:56:47 38.802 -122.740 1.9 4 km ( 2 mi) SSW of Cobb, CA

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21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.8 2006/12/19 23:22:45 37.506 -118.202 0.4 23 km ( 14 mi) NE of Bishop, CA
ML2.5 2006/12/19 23:13:29 32.637 -115.857 12.7 17 km ( 11 mi) SE of Ocotillo, CA
ML1.4 2006/12/19 23:08:33 33.835 -117.573 0.0 4 km ( 2 mi) S of Corona, CA
ML1.0 2006/12/19 22:30:13 34.986 -116.947 4.3 15 km ( 9 mi) NNE of Barstow, CA
ML1.0 2006/12/19 22:21:22 37.388 -117.088 5.0 18 km ( 11 mi) ENE of Tokop, NV
ML1.7 2006/12/19 22:07:46 36.970 -121.555 0.0 5 km ( 3 mi) SSE of Gilroy, CA

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December 20, 2006

00:00-03:00 UTC
Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.5 2006/12/20 02:34:08 32.688 -116.039 13.5 7 km ( 4 mi) SW of Ocotillo, CA
ML1.7 2006/12/20 02:17:55 32.686 -116.056 8.8 8 km ( 5 mi) SW of Ocotillo, CA
ML2.6 2006/12/20 02:14:35 38.833 -122.798 2.8 4 km ( 2 mi) N of The Geysers, CA
ML1.4 2006/12/20 01:37:24 37.336 -118.539 10.8 9 km ( 5 mi) WSW of West Bishop, CA

ML3.2 2006/12/20 01:23:12 18.733 -65.120 98.2 47 km ( 29 mi) NNW of CHARLOTTE AMALIE, US Virgin Islands

ML2.6 2006/12/20 00:47:42 38.674 -119.840 0.0 4 km ( 3 mi) WSW of Markleeville, CA
ML1.9 2006/12/20 00:14:33 36.564 -121.071 6.4 7 km ( 5 mi) ENE of Pinnacles, CA

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03:00-06:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML3.0 2006/12/20 05:38:57 18.556 -66.332 87.9 9 km ( 6 mi) N of Breñas, PR

ML1.9 2006/12/20 04:12:27 38.831 -122.866 3.5 6 km ( 4 mi) NW of The Geysers, CA
ML1.6 2006/12/20 04:00:34 34.674 -116.296 3.2 14 km ( 8 mi) WSW of Ludlow, CA
ML2.2 2006/12/20 03:50:34 32.645 -115.863 11.0 16 km ( 10 mi) SE of Ocotillo, CA
ML1.3 2006/12/20 03:44:18 38.836 -122.793 1.8 4 km ( 3 mi) NNE of The Geysers, CA

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06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.1 2006/12/20 08:43:11 34.573 -116.262 3.8 19 km ( 12 mi) SSW of Ludlow, CA

M4.6 2006/12/20 08:28:28 47.242 152.847 65.7 KURIL ISLANDS

ML1.9 2006/12/20 08:24:19 34.262 -119.210 20.8 2 km ( 1 mi) SE of San Buenaventura (Ventura), CA
ML1.5 2006/12/20 07:49:21 36.623 -121.234 6.3 13 km ( 8 mi) NW of Pinnacles, CA
ML1.8 2006/12/20 07:34:52 37.072 -118.262 6.8 11 km ( 7 mi) SSE of Big Pine, CA
ML2.7 2006/12/20 07:09:06 36.538 -118.609 18.1 15 km ( 9 mi) E of Sequoia National Park, CA

ML3.1 2006/12/20 06:38:08 19.025 -66.890 5.0 60 km ( 37 mi) NNE of Isabela, PR

ML1.3 2006/12/20 06:24:49 33.368 -116.355 9.2 14 km ( 8 mi) N of Borrego Springs, CA
ML1.9 2006/12/20 06:01:12 37.498 -118.181 0.1 22 km ( 14 mi) NW of Deep Springs, CA

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09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.3 2006/12/20 10:47:33 34.508 -118.106 14.4 8 km ( 5 mi) ENE of Acton, CA
ML2.7 2006/12/20 09:48:27 40.610 -124.216 16.4 5 km ( 3 mi) NE of Ferndale, CA

ML3.3 2006/12/20 09:43:26 46.101 -118.517 11.1 11 km ( 7 mi) WNW of Garrett, WA

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12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML3.3 2006/12/20 14:16:45 19.140 -64.139 38.3 49 km ( 31 mi) NNE of Settlement, British Virgin Islands

ML2.3 2006/12/20 13:47:54 40.717 -121.522 10.4 22 km ( 14 mi) SE of Burney, CA
ML1.9 2006/12/20 13:34:43 39.269 -123.231 5.9 13 km ( 8 mi) N of Ukiah, CA
ML1.4 2006/12/20 13:23:22 34.192 -117.553 7.3 8 km ( 5 mi) NNE of Rancho Cucamonga, CA
ML1.9 2006/12/20 12:56:19 33.263 -116.082 3.2 12 km ( 7 mi) WSW of Salton City, CA
ML1.8 2006/12/20 12:56:12 38.806 -122.793 1.9 1 km ( 1 mi) NE of The Geysers, CA
ML1.2 2006/12/20 12:40:36 38.806 -122.793 2.0 1 km ( 1 mi) NE of The Geysers, CA

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15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.8 2006/12/20 17:55:17 33.971 -116.828 18.9 8 km ( 5 mi) NE of Banning, CA
ML2.0 2006/12/20 17:38:04 36.831 -121.556 6.3 2 km ( 1 mi) SW of San Juan Bautista, CA
ML1.0 2006/12/20 17:03:50 34.358 -117.014 0.0 11 km ( 7 mi) SW of Lucerne Valley, CA
ML1.8 2006/12/20 16:49:34 38.758 -122.723 2.9 3 km ( 2 mi) SW of Anderson Springs, CA

M4.8 2006/12/20 15:10:57 -4.784 -75.315 53.3 NORTHERN PERU

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18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.3 2006/12/20 20:47:46 33.944 -116.372 9.8 13 km ( 8 mi) E of Desert Hot Springs, CA
ML1.8 2006/12/20 20:42:22 37.333 -121.701 7.2 12 km ( 7 mi) ESE of Alum Rock, CA
ML1.9 2006/12/20 20:39:44 37.333 -121.701 7.6 12 km ( 7 mi) ESE of Alum Rock, CA
ML2.3 2006/12/20 20:13:01 38.816 -122.799 3.6 2 km ( 1 mi) NNE of The Geysers, CA
ML1.2 2006/12/20 20:01:29 36.008 -120.575 3.6 18 km ( 11 mi) NW of Parkfield, CA
ML1.2 2006/12/20 19:58:43 36.745 -121.437 5.3 12 km ( 7 mi) WSW of Tres Pinos, CA
ML1.3 2006/12/20 19:46:43 38.760 -122.737 2.7 4 km ( 3 mi) WSW of Anderson Springs, CA
ML1.0 2006/12/20 19:32:12 33.529 -116.768 0.0 9 km ( 6 mi) WSW of Anza, CA
ML1.2 2006/12/20 18:22:22 37.564 -118.847 8.3 14 km ( 9 mi) SE of Mammoth Lakes, CA
ML1.7 2006/12/20 18:21:22 37.561 -118.848 8.2 14 km ( 9 mi) SE of Mammoth Lakes, CA

ML3.4 2006/12/20 18:15:36 41.127 -111.575 7.9 13 km ( 8 mi) NE of Morgan, UT

ML1.1 2006/12/20 18:10:36 33.721 -116.819 16.3 8 km ( 5 mi) ESE of Valle Vista, CA
ML1.4 2006/12/20 18:04:14 37.562 -118.849 8.4 14 km ( 9 mi) SE of Mammoth Lakes, CA

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21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

M5.6 2006/12/20 23:55:56 13.256 125.822 22.9 PHILIPPINE ISLANDS REGION

ML3.2 2006/12/20 23:43:08 19.239 -66.615 29.7 86 km ( 53 mi) NNE of Carrizales, PR

ML1.0 2006/12/20 22:59:49 33.861 -117.502 0.0 6 km ( 4 mi) E of Corona, CA
ML1.5 2006/12/20 22:45:25 34.616 -117.138 0.0 13 km ( 8 mi) NNE of Apple Valley, CA
ML2.1 2006/12/20 22:34:38 32.455 -115.236 7.7 22 km ( 14 mi) NNW of Guadalupe Victoria, Mexico
ML2.0 2006/12/20 22:23:56 36.046 -115.255 0.0 5 km ( 3 mi) WNW of Enterprise, NV
ML1.1 2006/12/20 21:28:34 33.662 -116.723 15.9 9 km ( 6 mi) S of Idyllwild, CA
ML1.8 2006/12/20 21:07:51 38.019 -122.403 4.2 7 km ( 4 mi) WNW of Bayview-Montalvin, CA

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December 21, 2006

00:00-03:00 UTC
Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.2 2006/12/21 02:52:40 37.573 -118.824 9.4 13 km ( 8 mi) W of Toms Place, CA
ML2.3 2006/12/21 02:44:06 32.559 -115.819 2.6 26 km ( 16 mi) SE of Ocotillo, CA
ML1.3 2006/12/21 02:40:27 33.773 -115.925 5.9 25 km ( 16 mi) ENE of Coachella, CA
ML1.2 2006/12/21 01:27:35 37.539 -118.821 7.2 13 km ( 8 mi) WSW of Toms Place, CA
ML1.6 2006/12/21 01:14:30 37.560 -118.848 8.3 14 km ( 9 mi) SE of Mammoth Lakes, CA
ML1.1 2006/12/21 01:09:16 37.557 -118.857 9.6 14 km ( 9 mi) SE of Mammoth Lakes, CA
ML1.6 2006/12/21 00:43:54 33.665 -116.734 15.4 9 km ( 6 mi) SSW of Idyllwild, CA
ML1.1 2006/12/21 00:28:44 36.125 -118.184 7.0 23 km ( 14 mi) SW of Olancha, CA
ML1.7 2006/12/21 00:27:54 37.562 -118.848 8.2 14 km ( 9 mi) SE of Mammoth Lakes, CA
ML1.4 2006/12/21 00:07:49 37.444 -118.556 14.1 5 km ( 3 mi) NE of Round Valley, CA

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03:00-06:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.1 2006/12/21 05:49:44 36.773 -121.291 8.0 3 km ( 2 mi) SE of Tres Pinos, CA
ML1.5 2006/12/21 05:31:11 38.807 -122.790 2.1 2 km ( 1 mi) NE of The Geysers, CA
ML1.7 2006/12/21 05:17:21 38.793 -122.806 4.7 1 km ( 0 mi) S of The Geysers, CA
ML1.8 2006/12/21 04:44:01 32.576 -115.817 4.4 25 km ( 15 mi) SE of Ocotillo, CA
ML1.8 2006/12/21 04:25:06 34.508 -118.103 13.2 8 km ( 5 mi) S of Palmdale, CA
ML1.1 2006/12/21 03:36:38 34.165 -116.851 11.6 8 km ( 5 mi) NNW of Mt. San Gorgonio, CA
ML1.0 2006/12/21 03:36:34 37.559 -118.850 8.4 14 km ( 9 mi) SE of Mammoth Lakes, CA
ML1.6 2006/12/21 03:23:44 33.190 -115.648 0.0 3 km ( 2 mi) NNW of Obsidian Butte, CA

ML3.7 2006/12/21 03:12:28 37.860 -122.237 9.0 4 km ( 2 mi) ESE of Berkeley, CA

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06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.2 2006/12/21 08:55:40 37.856 -122.235 8.8 4 km ( 2 mi) N of Piedmont, CA
ML1.7 2006/12/21 07:07:06 38.811 -122.814 3.2 2 km ( 1 mi) NNW of The Geysers, CA
ML1.3 2006/12/21 06:11:09 38.762 -122.460 5.9 9 km ( 6 mi) ESE of Hidden Valley Lake, CA

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09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.2 2006/12/21 11:51:03 35.799 -118.031 8.4 21 km ( 13 mi) NE of Onyx, CA
ML1.5 2006/12/21 11:48:35 38.813 -122.813 3.2 2 km ( 1 mi) NNW of The Geysers, CA
ML1.5 2006/12/21 11:44:27 33.516 -116.501 15.9 16 km ( 10 mi) ESE of Anza, CA
ML1.3 2006/12/21 11:28:46 36.034 -120.632 6.4 23 km ( 15 mi) NW of Parkfield, CA
ML1.3 2006/12/21 10:32:52 33.466 -116.882 19.6 12 km ( 8 mi) N of Palomar Observatory, CA
ML1.9 2006/12/21 10:18:21 36.301 -118.332 1.0 28 km ( 17 mi) W of Cartago, CA
ML1.4 2006/12/21 09:17:46 35.884 -118.673 5.6 2 km ( 1 mi) WNW of Pine Flat, CA
ML2.3 2006/12/21 09:00:57 34.983 -119.096 6.9 14 km ( 9 mi) W of Wheeler Ridge, CA

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12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.5 2006/12/21 14:45:55 35.731 -117.555 10.6 16 km ( 10 mi) WSW of Searles Valley, CA
ML1.3 2006/12/21 14:24:05 35.940 -120.492 10.1 7 km ( 4 mi) NW of Parkfield, CA
ML1.9 2006/12/21 14:22:36 35.941 -120.491 9.8 7 km ( 4 mi) NW of Parkfield, CA
ML2.9 2006/12/21 14:06:32 36.469 -121.041 4.4 11 km ( 7 mi) SE of Pinnacles, CA
ML1.9 2006/12/21 13:50:09 38.052 -118.671 7.0 31 km ( 19 mi) SSW of Qualeys Camp, NV
ML1.3 2006/12/21 12:26:05 35.733 -117.570 10.4 16 km ( 10 mi) NE of Ridgecrest, CA
ML1.0 2006/12/21 12:25:30 35.731 -117.550 10.1 16 km ( 10 mi) WSW of Searles Valley, CA
ML2.1 2006/12/21 12:09:12 39.862 -123.483 3.3 20 km ( 13 mi) WNW of Covelo, CA

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15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML3.5 2006/12/21 17:01:47 18.105 -68.037 93.4 87 km ( 54 mi) WSW of Rincón, PR

ML1.6 2006/12/21 17:01:41 33.184 -115.552 10.1 7 km ( 4 mi) SSW of Niland, CA
ML1.5 2006/12/21 16:56:17 33.154 -115.657 2.2 3 km ( 2 mi) SW of Obsidian Butte, CA
ML1.9 2006/12/21 16:02:35 32.881 -116.043 6.2 16 km ( 10 mi) NNW of Ocotillo, CA
ML1.9 2006/12/21 15:16:45 39.392 -122.894 7.7 6 km ( 4 mi) ESE of Lake Pillsbury, CA

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18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML1.8 2006/12/21 20:01:30 38.800 -117.979 0.0 9 km ( 5 mi) SSW of Gabbs, NV
ML2.4 2006/12/21 19:10:27 37.937 -115.851 0.0 37 km ( 23 mi) NNW of Tempiute, NV

M5.0 2006/12/21 18:30:55 39.437 23.528 10.0 AEGEAN SEA

ML2.1 2006/12/21 18:42:39 36.854 -121.579 4.4 4 km ( 2 mi) WNW of San Juan Bautista, CA

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21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Harmonic Activity which was detected and inferred to be associated with building deep crustal stress along the Pacific & North American Plate Boundary in Southern California.

ANSS Seismic Catalog: CA/NV/BAJA & Regions with Special Interest

MAG   DATE   UTC-TIME         LAT   LON   DEPTH   LOCATION
            y/m/d         h:m:s           deg     deg     km

ML2.1 2006/12/21 23:09:39 40.288 -123.685 31.8 22 km ( 14 mi) NNE of Redway, CA
ML1.5 2006/12/21 23:05:00 34.671 -116.281 5.5 12 km ( 8 mi) WSW of Ludlow, CA
ML2.0 2006/12/21 22:56:21 35.531 -118.411 1.3 13 km ( 8 mi) SSE of town of Lake Isabella, CA
ML1.9 2006/12/21 21:46:51 36.100 -120.169 8.1 9 km ( 6 mi) NNW of Avenal, CA

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