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 22-31, 2006

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

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

M2.8 (Micro)
Date-Time Thursday, December 28, 2006 at 13:37:01 (UTC)
= Coordinated Universal Time
Thursday, December 28, 2006 at 5:37:01 AM
= local time at epicenter

Location 37.855°N, 122.235°W
Depth 9.6 km (6.0 miles)
Region SAN FRANCISCO BAY AREA, CALIFORNIA
Distances 4 km (2 miles) ESE (118°) from Berkeley, CA
4 km (2 miles) N (355°) from Piedmont, CA
5 km (3 miles) ENE (66°) from Emeryville, CA
7 km (4 miles) N (355°) from Oakland, CA
18 km (11 miles) ENE (61°) from San Francisco City Hall, CA

Event ID nc51177225

---

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

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

ML1.4 2006/12/27 08:48:43 33.767 -116.070 15.0 14 km ( 8 mi) NE of Coachella, CA
ML1.2 2006/12/27 08:28:46 33.798 -116.186 5.0 10 km ( 6 mi) NNE of Indio, CA
ML1.2 2006/12/27 07:17:23 36.550 -121.141 3.6 2 km ( 1 mi) N of Pinnacles, CA
ML1.7 2006/12/27 06:51:42 32.684 -116.053 7.5 8 km ( 5 mi) SW of Ocotillo, CA

---

3.1 (Minor)
Date-Time Wednesday, December 27, 2006 at 21:36:19 (UTC)
= Coordinated Universal Time
Wednesday, December 27, 2006 at 1:36:19 PM
= local time at epicenter

Location 33.764°N, 116.085°W
Depth 2.4 km (1.5 miles)
Region SOUTHERN CALIFORNIA
Distances 12 km (8 miles) NE (41°) from Coachella, CA
14 km (9 miles) ENE (70°) from Indio, CA
21 km (13 miles) N (357°) from Mecca, CA
42 km (26 miles) E (99°) from Palm Springs, CA
147 km (92 miles) NE (42°) from San Diego, CA

Event ID ci10224265

December 27, 2006: Peak Crustal Resonant Frequency = 0.57 Hz (-68.95 dBv)

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

---

M4.0 (Light)
Date-Time Sunday, December 24, 2006 at 03:43:38 (UTC)
= Coordinated Universal Time
Saturday, December 23, 2006 at 7:43:38 PM
= local time at epicenter

Location 33.708°N, 116.050°W
Depth 13.2 km (8.2 miles)
Region SOUTHERN CALIFORNIA
Distances 12 km (7 miles) ENE (75°) from Coachella, CA
15 km (9 miles) N (8°) from Mecca, CA
17 km (10 miles) E (95°) from Indio, CA
46 km (29 miles) ESE (106°) from Palm Springs, CA
145 km (90 miles) NE (44°) from San Diego, CA

Event ID ci10223765

December 23, 2006: Peak Crustal Resonant Frequency = 0.76 Hz (-69.15 dBv)

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

---

AE Catalog Table of Contents

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

  ---

  
  
• 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

  ---

  
  
• All Infrasonic Spectrograms Captured on........................................  December 22, 2006
• All Infrasonic Spectrograms Captured on........................................  December 23, 2006
• All Infrasonic Spectrograms Captured on........................................  December 24, 2006
• All Infrasonic Spectrograms Captured on........................................  December 25, 2006
• All Infrasonic Spectrograms Captured on........................................  December 26, 2006
• All Infrasonic Spectrograms Captured on........................................  December 27, 2006
• All Infrasonic Spectrograms Captured on........................................  December 28, 2006
• All Infrasonic Spectrograms Captured on........................................  December 29, 2006
• All Infrasonic Spectrograms Captured on........................................  December 30, 2006
• All Infrasonic Spectrograms Captured on........................................  December 31, 2006

  ---

  
  

  
  

  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
• The Andaman Islands, India M6.3 Earthquake .............................  December 22, 2006
• The Taiwan Region M7.1 Earthquake ............................................  December 26, 2006
• The Taiwan Region M6.9 Earthquake ............................................  December 26, 2006
• The Bougainville, PNG M6.0 Earthquake .....................................  December 27, 2006
• The Gulf of Aden, Yemen M6.6 Earthquake .....................................  December 30, 2006

  ---

  
  

  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
• The Fiji Islands Region M4.7 Earthquake ....................................  December 21, 2006
• The Fiji Islands Region M5.2 Earthquake ....................................  December 22, 2006

  ---

  
  

  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
• The Cokedale, CO M3.4 Earthquake .............................................  December 24, 2006
• The Mt. Saint Helens, WA M3.1 Earthquake ................................  December 27, 2006
• The Bar Harbor, ME M3.5 Earthquake .........................................  December 29, 2006

  ---

  
  

  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
• The Berkeley, CA M3.7 Earthquake ..............................................  December 22, 2006
• The Coachella, CA M4.0 Earthquake ..............................................  December 23, 2006
• The Toms Place, CA. M3.0 Earthquake ...........................................  December 27, 2006
• The Coachella, CA M3.0 Earthquake ..............................................  December 27, 2006
• The Geysers, CA M3.4 Earthquake ..............................................  December 30, 2006
• The Cartago, CA M3.2 Earthquake ..............................................  December 31, 2006
• The Petrolia, CA M3.0 Earthquake ................................................  December 31, 2006

  ---

  
  

  California, Nevada, Baja Micro Quakes of Special Interest

• The Coachella, CA M2.9 Earthquake ..............................................  December 25, 2006
• The Union City CA M2.6 Earthquake ..............................................  December 25, 2006
  Note: * denotes an event which was expunged from the catalog after being reported.
  

  ---

  
  
  

  
  

  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

  ---

• 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.

  ---

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

  ---

• 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

---

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

---

---

---

December 22, 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

ML1.6 2006/12/22 02:15:06 35.000 -120.563 2.6 4 km ( 2 mi) NNE of Guadalupe, CA
ML1.8 2006/12/22 02:14:41 36.001 -120.562 3.1 16 km ( 10 mi) NW of Parkfield, CA
ML1.7 2006/12/22 02:08:39 38.807 -122.790 1.5 2 km ( 1 mi) NE of The Geysers, CA
ML2.0 2006/12/22 02:03:06 33.952 -117.812 14.6 6 km ( 3 mi) S of Diamond Bar, CA
ML2.4 2006/12/22 01:56:08 32.244 -115.336 6.1 22 km ( 14 mi) WSW of Guadalupe Victoria, Mexico
ML2.3 2006/12/22 01:23:26 33.988 -116.954 21.0 7 km ( 5 mi) NNE of Beaumont, CA
ML1.6 2006/12/22 00:50:40 32.685 -116.040 11.8 7 km ( 5 mi) SW of Ocotillo, CA

---

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

ML2.4 2006/12/22 05:43:29 36.620 -121.166 7.5 10 km ( 6 mi) N of Pinnacles, CA
ML1.6 2006/12/22 05:38:03 34.276 -118.546 11.6 4 km ( 3 mi) W of Granada Hills, CA
ML2.1 2006/12/22 05:14:17 37.593 -118.890 3.5 9 km ( 6 mi) ESE of Mammoth Lakes, CA
ML1.1 2006/12/22 04:34:49 33.453 -116.635 13.1 12 km ( 7 mi) SSE of Anza, CA
ML1.2 2006/12/22 04:12:22 38.806 -122.790 1.4 2 km ( 1 mi) ENE of The Geysers, CA
ML1.3 2006/12/22 03:54:52 36.124 -120.335 8.4 3 km ( 2 mi) SE of Coalinga, CA
ML2.1 2006/12/22 03:51:00 32.714 -116.049 8.1 6 km ( 4 mi) WSW of Ocotillo, CA

M4.5 2006/12/22 03:46:58 46.911 154.674 10.0 EAST OF THE KURIL ISLANDS

ML1.7 2006/12/22 03:37:31 37.411 -118.600 11.8 0 km ( 0 mi) SSW of Round Valley, CA

---

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

ML2.1 2006/12/22 07:56:45 37.052 -121.483 8.3 10 km ( 6 mi) ENE of Gilroy, CA
ML1.2 2006/12/22 06:56:00 38.794 -122.762 3.1 4 km ( 2 mi) E of The Geysers, CA
ML1.9 2006/12/22 06:46:33 33.694 -116.719 19.6 6 km ( 4 mi) S of Idyllwild, CA

---

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

M5.1 2006/12/22 11:06:07 3.289 125.356 174.7 KEPULAUAN SANGIHE, INDONESIA
M4.8 2006/12/22 11:04:47 53.008 158.683 96.6 NEAR THE EAST COAST OF KAMCHATKA, RUSSIA

ML1.0 2006/12/22 10:41:04 33.600 -116.359 12.3 10 km ( 6 mi) SW of La Quinta, CA
ML2.6 2006/12/22 09:57:51 32.620 -117.305 15.7 14 km ( 9 mi) WSW of Coronado, CA

---

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 2006/12/22 14:04:17 38.832 -122.793 2.0 4 km ( 2 mi) NNE of The Geysers, CA

M5.2 2006/12/22 13:51:53 -17.593 -178.570 542.6 FIJI REGION

ML1.7 2006/12/22 12:19:02 36.152 -120.945 1.2 7 km ( 4 mi) ENE of San Lucas, CA
ML2.4 2006/12/22 12:11:57 34.057 -119.476 24.0 26 km ( 16 mi) WSW of Channel Islands Beach, CA

---

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

ML1.3 2006/12/22 17:41:44 35.999 -120.561 2.6 16 km ( 10 mi) NW of Parkfield, CA

M4.3 2006/12/22 17:37:27 56.557 121.966 10.0 AMURSKAYA OBLAST', RUSSIA

ML1.0 2006/12/22 16:48:38 36.622 -121.168 6.2 10 km ( 6 mi) NNW of Pinnacles, CA

---

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

ML1.2 2006/12/22 20:33:17 33.706 -116.738 20.9 5 km ( 3 mi) SSW of Idyllwild, CA

M6.3 2006/12/22 19:50:48 10.681 92.390 45.0 ANDAMAN ISLANDS, INDIA REGION

ML1.7 2006/12/22 19:01:59 38.840 -122.773 1.8 4 km ( 3 mi) W of Cobb, CA
ML1.7 2006/12/22 18:23:26 36.000 -120.561 2.9 16 km ( 10 mi) NW of Parkfield, CA
ML1.9 2006/12/22 18:22:05 33.413 -117.048 5.6 9 km ( 6 mi) E of Rainbow, CA

---

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

ML1.6 2006/12/22 22:25:13 33.875 -116.476 6.0 7 km ( 5 mi) N of Cathedral City, CA

---

---

December 23, 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 2006/12/23 02:08:06 36.619 -121.109 22.7 10 km ( 6 mi) NNE of Pinnacles, CA
ML1.6 2006/12/23 00:36:24 34.634 -116.235 5.5 12 km ( 7 mi) SW of Ludlow, CA
ML1.9 2006/12/23 00:22:44 34.002 -116.451 7.3 7 km ( 4 mi) NE of Desert Hot Springs, CA
ML2.7 2006/12/23 00:22:07 37.497 -118.187 6.0 23 km ( 14 mi) NW of Deep Springs, CA
ML1.7 2006/12/23 00:11:15 36.598 -121.204 2.0 9 km ( 6 mi) NW of Pinnacles, CA
ML1.8 2006/12/23 00:04:28 33.258 -116.008 0.0 6 km ( 4 mi) SW of Salton City, CA

---

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 2006/12/23 05:53:13 35.355 -118.510 8.4 14 km ( 9 mi) NNE of Keene, CA
ML1.5 2006/12/23 04:30:59 37.457 -118.839 8.1 18 km ( 11 mi) SW of Toms Place, CA

---

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 2006/12/23 07:32:17 38.816 -122.798 3.2 2 km ( 1 mi) NNE of The Geysers, CA
ML1.4 2006/12/23 07:31:09 37.855 -122.234 9.1 4 km ( 2 mi) N of Piedmont, CA
ML2.2 2006/12/23 07:11:47 37.856 -122.237 8.7 4 km ( 2 mi) ESE of Berkeley, CA

ML3.7 2006/12/23 06:49:57 37.861 -122.237 10.0 4 km ( 2 mi) ESE of Berkeley, CA

---

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 2006/12/23 11:40:28 33.450 -116.633 10.0 12 km ( 8 mi) SSE of Anza, CA
ML1.4 2006/12/23 11:37:17 33.448 -116.636 9.3 12 km ( 8 mi) SSE of Anza, CA
ML1.4 2006/12/23 11:15:41 36.021 -120.591 3.6 20 km ( 12 mi) NW of Parkfield, CA

M5.2 2006/12/23 10:54:51 -2.650 134.142 35.0 NEAR THE NORTH COAST OF PAPUA, INDONESIA

ML1.0 2006/12/23 10:53:00 33.995 -116.960 22.5 8 km ( 5 mi) N of Beaumont, CA
ML1.7 2006/12/23 10:33:06 40.456 -121.548 5.5 11 km ( 7 mi) N of Mineral, CA
ML1.2 2006/12/23 10:18:41 35.478 -118.338 3.4 18 km ( 11 mi) S of Weldon, CA
ML2.4 2006/12/23 10:11:39 35.473 -118.333 1.4 19 km ( 12 mi) S of Weldon, CA
ML2.5 2006/12/23 09:02:46 38.770 -122.737 2.8 4 km ( 2 mi) W of Anderson Springs, CA

---

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 2006/12/23 14:50:45 36.000 -120.553 2.9 16 km ( 10 mi) NW of Parkfield, CA
ML1.5 2006/12/23 12:53:18 33.471 -116.910 16.9 14 km ( 8 mi) NNW of Palomar Observatory, CA
ML1.4 2006/12/23 12:28:50 32.973 -115.912 12.7 27 km ( 17 mi) NNE of Ocotillo, CA
ML1.4 2006/12/23 12:14:12 33.453 -116.577 12.0 14 km ( 9 mi) SE of Anza, CA

---

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 2006/12/23 17:21:15 37.862 -122.235 9.8 4 km ( 2 mi) ESE of Berkeley, CA

ML1.3 2006/12/23 16:48:56 38.824 -122.801 4.2 3 km ( 2 mi) N of The Geysers, CA
ML1.2 2006/12/23 15:42:47 38.803 -122.817 4.1 1 km ( 1 mi) WNW of The Geysers, CA

---

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 2006/12/23 20:15:01 38.809 -122.791 1.5 2 km ( 1 mi) NE of The Geysers, CA
ML1.0 2006/12/23 19:33:12 37.615 -118.789 1.1 11 km ( 7 mi) WNW of Toms Place, CA
ML1.0 2006/12/23 19:31:59 35.714 -118.300 11.2 8 km ( 5 mi) WNW of Onyx, CA
ML1.5 2006/12/23 19:22:07 32.694 -116.042 7.8 7 km ( 4 mi) SW of Ocotillo, CA
ML1.2 2006/12/23 19:16:37 37.604 -119.019 4.2 5 km ( 3 mi) SW of Mammoth Lakes, CA
ML1.7 2006/12/23 19:07:44 33.306 -115.629 15.7 11 km ( 7 mi) ESE of Bombay Beach, CA

---

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

M5.7 2006/12/23 22:59:47 -6.750 105.548 84.3 SUNDA STRAIT, INDONESIA

ML1.2 2006/12/23 22:48:13 32.675 -115.856 7.2 15 km ( 9 mi) ESE of Ocotillo, CA
ML1.6 2006/12/23 22:23:20 37.859 -122.233 9.5 4 km ( 2 mi) ESE of Berkeley, CA
ML1.5 2006/12/23 21:59:00 36.978 -121.626 4.2 6 km ( 3 mi) SW of Gilroy, CA
ML1.7 2006/12/23 21:52:09 35.475 -118.339 2.2 19 km ( 12 mi) S of Weldon, CA
ML1.9 2006/12/23 21:42:04 32.681 -116.056 7.3 9 km ( 5 mi) SW of Ocotillo, CA
ML1.3 2006/12/23 21:11:09 38.825 -122.805 3.5 3 km ( 2 mi) N of The Geysers, CA
ML1.4 2006/12/23 21:04:51 34.263 -117.558 11.3 9 km ( 5 mi) ESE of Mt. Baldy, CA

---

---

December 24, 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 2006/12/24 02:30:55 34.208 -117.576 8.5 9 km ( 6 mi) N of Rancho Cucamonga, CA

M4.9 2006/12/24 01:58:35 39.884 74.382 35.0 SOUTHERN XINJIANG, CHINA

ML1.4 2006/12/24 01:40:20 38.772 -122.746 3.3 5 km ( 3 mi) W of Anderson Springs, CA

M4.9 2006/12/24 01:32:23 6.244 125.332 126.6 MINDANAO, PHILIPPINES

ML1.2 2006/12/24 01:24:03 33.959 -117.138 15.1 9 km ( 6 mi) ENE of Moreno Valley, CA
ML1.1 2006/12/24 01:04:28 36.065 -117.704 4.3 22 km ( 14 mi) E of Coso Junction, CA

---

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

M5.5 2006/12/24 05:07:38 -4.533 153.175 64.2 NEW IRELAND REGION, PAPUA NEW GUINEA

ML2.2 2006/12/24 04:55:31 37.905 -121.792 17.8 8 km ( 5 mi) WSW of Brentwood, CA
ML2.6 2006/12/24 04:07:54 33.752 -116.083 5.1 12 km ( 7 mi) NE of Coachella, CA
ML2.1 2006/12/24 03:59:08 33.708 -116.049 14.7 12 km ( 7 mi) ENE of Coachella, CA
ML2.5 2006/12/24 03:55:17 38.232 -118.628 4.9 12 km ( 8 mi) SW of Qualeys Camp, NV
ML1.1 2006/12/24 03:48:45 33.714 -116.053 11.9 12 km ( 7 mi) ENE of Coachella, CA

ML4.0 2006/12/24 03:43:38 33.708 -116.050 13.2 12 km ( 7 mi) ENE of Coachella, CA

ML1.1 2006/12/24 03:01:33 33.457 -116.527 10.5 17 km ( 11 mi) SE of Anza, CA

---

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

ML1.3 2006/12/24 08:57:46 32.807 -115.474 11.2 8 km ( 5 mi) ENE of El Centro, CA

M5.2 2006/12/24 08:01:06 -6.774 116.543 524.1 BALI SEA
M4.5 2006/12/24 07:36:29 55.794 110.300 10.0 LAKE BAYKAL REGION, RUSSIA
M5.0 2006/12/24 07:27:44 -13.994 -76.901 41.4 NEAR THE COAST OF CENTRAL PERU

ML1.4 2006/12/24 07:22:40 33.989 -116.805 16.5 10 km ( 6 mi) NNW of Cabazon, CA
ML2.1 2006/12/24 07:09:00 35.770 -117.490 5.5 10 km ( 6 mi) W of Searles Valley, CA
ML1.1 2006/12/24 07:08:06 35.478 -118.338 3.6 18 km ( 11 mi) S of Weldon, CA
ML1.5 2006/12/24 06:44:54 33.709 -116.052 12.3 12 km ( 7 mi) ENE of Coachella, CA
ML1.2 2006/12/24 06:10:57 32.691 -116.040 8.4 7 km ( 4 mi) SW of Ocotillo, CA

---

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

ML3.4 2006/12/24 11:50:22 36.928 -104.846 5.0 31 km ( 19 mi) SW of Cokedale, CO

ML1.4 2006/12/24 11:47:44 32.876 -115.456 12.1 10 km ( 6 mi) NW of Holtville, CA
ML1.5 2006/12/24 11:17:01 32.813 -115.478 10.0 8 km ( 5 mi) ENE of El Centro, CA
ML1.7 2006/12/24 10:58:13 32.813 -115.473 9.3 8 km ( 5 mi) ENE of El Centro, CA

M4.5 2006/12/24 10:26:31 35.014 26.921 20.0 CRETE, GREECE

ML1.7 2006/12/24 10:19:47 38.828 -122.779 2.6 4 km ( 3 mi) NE of The Geysers, CA

M5.2 2006/12/24 09:46:26 -5.100 144.908 61.8 NEW GUINEA, PAPUA NEW GUINEA

ML1.4 2006/12/24 09:45:03 38.830 -122.794 3.8 4 km ( 2 mi) NNE of The Geysers, CA
ML1.2 2006/12/24 09:31:20 32.827 -115.484 8.0 8 km ( 5 mi) ENE of El Centro, CA
ML1.8 2006/12/24 09:23:50 32.824 -115.477 9.0 9 km ( 5 mi) ENE of El Centro, CA
ML1.9 2006/12/24 09:23:23 32.803 -115.472 10.5 8 km ( 5 mi) ENE of El Centro, CA

---

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 2006/12/24 14:51:27 35.614 -120.945 5.2 15 km ( 9 mi) ENE of Cambria, CA

M5.1 2006/12/24 14:26:20 51.730 178.789 94.3 RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA

ML1.2 2006/12/24 13:56:15 32.685 -116.046 9.0 8 km ( 5 mi) SW of Ocotillo, CA
ML1.8 2006/12/24 13:01:48 35.666 -121.078 6.1 10 km ( 6 mi) ENE of San Simeon, CA
ML1.5 2006/12/24 12:57:27 33.581 -116.766 13.7 9 km ( 6 mi) WNW of Anza, CA
ML1.0 2006/12/24 12:14:22 36.106 -117.897 8.9 8 km ( 5 mi) NE of Coso Junction, CA
ML1.2 2006/12/24 12:12:40 37.561 -118.849 7.3 14 km ( 9 mi) SE of Mammoth Lakes, CA
ML1.8 2006/12/24 12:06:37 32.821 -115.480 10.0 8 km ( 5 mi) ENE of El Centro, CA

---

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 2006/12/24 17:27:37 32.685 -116.040 9.2 7 km ( 4 mi) SW of Ocotillo, CA
ML1.8 2006/12/24 17:17:11 33.988 -119.074 0.4 22 km ( 14 mi) SSE of Port Hueneme, CA
ML1.7 2006/12/24 17:11:37 38.790 -122.742 2.4 5 km ( 3 mi) WNW of Anderson Springs, CA

M5.7 2006/12/24 17:39:07 -2.116 139.010 27.4 NEAR THE NORTH COAST OF PAPUA, INDONESIA

ML3.2 2006/12/24 17:04:01 19.061 -64.602 18.1 47 km ( 29 mi) NW of Settlement, British Virgin Islands

---

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

ML1.0 2006/12/24 20:58:36 33.584 -116.765 13.1 9 km ( 6 mi) WNW of Anza, CA
ML1.0 2006/12/24 20:12:02 37.860 -122.247 7.7 3 km ( 2 mi) ESE of Berkeley, CA
ML1.0 2006/12/24 19:00:38 33.720 -116.766 18.2 6 km ( 3 mi) WSW of Idyllwild, CA
ML2.1 2006/12/24 18:31:01 33.092 -116.056 5.7 9 km ( 6 mi) SE of Ocotillo Wells, CA

---

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

ML2.3 2006/12/24 23:16:29 33.840 -117.856 11.0 3 km ( 2 mi) E of Anaheim, CA
ML2.0 2006/12/24 22:35:57 37.038 -116.377 9.1 36 km ( 23 mi) ENE of Beatty, NV

---

---

December 25, 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 2006/12/25 02:00:28 37.461 -118.836 12.4 18 km ( 11 mi) SW of Toms Place, CA
ML1.7 2006/12/25 01:02:55 36.383 -120.966 5.7 23 km ( 14 mi) SE of Pinnacles, CA
ML1.7 2006/12/25 01:01:40 33.364 -116.319 14.5 14 km ( 9 mi) NNE of Borrego Springs, CA
ML1.4 2006/12/25 00:31:33 34.471 -118.029 7.9 7 km ( 4 mi) SSW of Littlerock, CA

---

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

ML1.2 2006/12/25 05:08:33 36.298 -116.036 0.0 10 km ( 6 mi) NNW of Pahrump, NV
ML1.2 2006/12/25 03:25:18 32.712 -116.065 7.4 7 km ( 4 mi) WSW of Ocotillo, CA
ML1.3 2006/12/25 03:18:16 37.300 -121.672 5.6 15 km ( 9 mi) E of Seven Trees, CA
ML1.2 2006/12/25 03:13:11 33.996 -116.765 19.0 10 km ( 6 mi) N of Cabazon, CA

---

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 2006/12/25 08:48:05 37.145 -116.304 0.0 48 km ( 30 mi) ENE of Beatty, NV

ML3.5 2006/12/25 08:44:11 37.211 -114.662 8.0 29 km ( 18 mi) N of Hoya, NV

ML1.5 2006/12/25 07:42:31 35.261 -118.556 7.2 3 km ( 2 mi) NE of Keene, CA
ML1.8 2006/12/25 06:51:04 34.578 -116.265 4.7 19 km ( 12 mi) SSW of Ludlow, CA
ML1.1 2006/12/25 06:29:12 32.894 -115.495 5.6 9 km ( 6 mi) NE of Imperial, CA

---

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 2006/12/25 11:44:09 31.833 -116.694 6.0 8 km ( 5 mi) WSW of Ensenada, Mexico
ML1.3 2006/12/25 11:24:44 33.592 -116.754 15.6 9 km ( 5 mi) WNW of Anza, CA
ML1.4 2006/12/25 11:10:51 33.500 -116.776 13.3 11 km ( 7 mi) WSW of Anza, CA
ML1.2 2006/12/25 10:48:38 32.683 -115.864 7.1 14 km ( 9 mi) ESE of Ocotillo, CA

M4.8 2006/12/25 10:29:11 -27.369 66.612 10.0 INDIAN OCEAN TRIPLE JUNCTION

---

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

ML1.8 2006/12/25 14:54:02 38.825 -122.796 3.2 3 km ( 2 mi) NNE of The Geysers, CA
ML1.2 2006/12/25 14:48:38 35.671 -121.087 5.9 10 km ( 6 mi) ENE of San Simeon, CA
ML1.4 2006/12/25 14:39:16 33.842 -117.846 10.7 4 km ( 3 mi) E of Anaheim, CA
ML1.6 2006/12/25 14:22:03 38.769 -122.743 2.6 4 km ( 3 mi) W of Anderson Springs, CA
ML1.4 2006/12/25 14:04:42 33.831 -117.858 11.9 3 km ( 2 mi) E of Anaheim, CA

M4.5 2006/12/25 14:08:58 34.772 22.609 30.0 CENTRAL MEDITERRANEAN SEA

ML2.3 2006/12/25 13:43:07 38.810 -122.827 2.9 2 km ( 1 mi) NW of The Geysers, CA
ML1.8 2006/12/25 13:24:56 48.537 -122.597 17.5 4 km ( 3 mi) NNE of Anacortes, WA
ML2.7 2006/12/25 12:11:21 38.769 -122.702 2.0 1 km ( 1 mi) SW of Anderson Springs, CA

---

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

ML1.3 2006/12/25 17:54:10 34.349 -117.010 6.2 12 km ( 8 mi) SSW of Lucerne Valley, CA
ML1.6 2006/12/25 17:22:39 33.836 -117.844 10.5 4 km ( 2 mi) NW of Villa Park, CA
ML2.0 2006/12/25 17:21:26 34.041 -116.315 9.0 10 km ( 6 mi) S of Joshua Tree, CA
ML1.4 2006/12/25 17:02:57 32.673 -116.085 10.6 11 km ( 7 mi) SW of Ocotillo, CA
ML2.8 2006/12/25 16:56:46 33.701 -116.043 12.9 12 km ( 8 mi) E of Coachella, CA
ML2.0 2006/12/25 16:45:37 33.842 -117.840 11.6 4 km ( 2 mi) NW of Villa Park, CA
ML1.6 2006/12/25 16:22:03 32.671 -116.058 9.1 10 km ( 6 mi) SW of Ocotillo, CA

M4.7 2006/12/25 15:37:44 47.042 152.779 10.0 KURIL ISLANDS

ML2.3 2006/12/25 15:06:14 36.141 -117.850 1.1 14 km ( 9 mi) NE of Coso Junction, CA

---

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

ML1.4 2006/12/25 21:25:39 37.373 -117.198 0.0 10 km ( 6 mi) NE of Tokop, NV

M5.8 2006/12/25 20:01:01 42.192 75.975 10.0 KYRGYZSTAN

ML1.5 2006/12/25 19:54:00 32.687 -116.052 9.8 8 km ( 5 mi) SW of Ocotillo, CA
ML1.9 2006/12/25 18:56:54 35.889 -120.442 11.1 1 km ( 1 mi) SW of Parkfield, CA
ML2.6 2006/12/25 18:07:21 37.620 -122.015 5.2 4 km ( 3 mi) NE of Union City, CA

---

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

ML1.0 2006/12/25 23:58:26 33.724 -116.769 17.9 6 km ( 3 mi) WSW of Idyllwild, CA
ML1.4 2006/12/25 23:19:36 33.520 -116.561 17.9 11 km ( 7 mi) ESE of Anza, CA
ML1.5 2006/12/25 22:30:37 38.813 -122.792 4.1 2 km ( 1 mi) NE of The Geysers, CA
ML2.8 2006/12/25 22:20:33 38.145 -115.732 3.9 46 km ( 28 mi) S of Lockes, NV

---

---

December 26, 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

ML1.8 2006/12/26 02:54:22 33.838 -117.858 11.0 3 km ( 2 mi) E of Anaheim, CA
ML1.3 2006/12/26 01:29:31 38.806 -122.788 1.7 2 km ( 1 mi) ENE of The Geysers, CA
ML1.0 2006/12/26 01:03:27 36.069 -117.590 1.4 22 km ( 14 mi) S of Darwin, CA

---

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

ML1.3 2006/12/26 05:42:42 33.602 -116.755 13.4 9 km ( 6 mi) NW of Anza, CA
ML1.6 2006/12/26 05:41:28 32.989 -116.302 5.3 23 km ( 15 mi) SW of Ocotillo Wells, CA
ML1.3 2006/12/26 03:07:56 36.136 -117.863 0.0 13 km ( 8 mi) NE of Coso Junction, CA
ML1.3 2006/12/26 03:03:00 36.644 -121.263 5.9 16 km ( 10 mi) NW of Pinnacles, CA

---

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 2006/12/26 08:39:51 32.691 -116.052 8.3 7 km ( 5 mi) SW of Ocotillo, CA

M4.7 2006/12/26 07:58:00 46.376 154.406 35.6 EAST OF THE KURIL ISLANDS

ML1.3 2006/12/26 07:37:51 36.067 -117.858 2.5 9 km ( 5 mi) ENE of Coso Junction, CA

M5.0 2006/12/26 07:29:02 -38.360 111.870 10.0 SOUTHWEST OF AUSTRALIA

ML1.4 2006/12/26 07:16:58 38.818 -122.794 3.6 2 km ( 2 mi) NNE of The Geysers, CA
ML1.4 2006/12/26 07:12:45 37.481 -118.370 6.3 13 km ( 8 mi) N of Bishop, CA
ML2.5 2006/12/26 07:11:15 36.384 -120.965 7.1 23 km ( 14 mi) SE of Pinnacles, CA

M4.5 2006/12/26 06:33:19 -22.299 -65.563 256.3 JUJUY, ARGENTINA

---

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

ML1.1 2006/12/26 10:44:13 36.029 -117.387 5.1 29 km ( 18 mi) N of Trona, CA
ML1.4 2006/12/26 10:12:03 33.595 -116.811 7.7 14 km ( 8 mi) WNW of Anza, CA
ML1.4 2006/12/26 09:34:48 38.835 -122.799 2.6 4 km ( 3 mi) N of The Geysers, CA
ML1.0 2006/12/26 09:18:59 36.148 -117.840 3.5 15 km ( 9 mi) NE of Coso Junction, CA
ML1.3 2006/12/26 09:11:59 34.711 -116.286 8.7 12 km ( 7 mi) W of Ludlow, CA
ML1.9 2006/12/26 09:00:23 33.704 -116.043 12.9 12 km ( 8 mi) ENE of Coachella, CA

---

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

M4.7 2006/12/26 14:53:19 21.774 120.659 18.3 TAIWAN REGION

ML1.2 2006/12/26 14:29:40 37.598 -118.795 8.3 11 km ( 7 mi) WNW of Toms Place, CA
ML1.4 2006/12/26 14:26:14 32.689 -116.040 8.5 7 km ( 4 mi) SW of Ocotillo, CA
ML1.3 2006/12/26 14:00:12 32.679 -115.860 6.2 14 km ( 9 mi) ESE of Ocotillo, CA
ML1.5 2006/12/26 13:11:01 32.696 -116.049 8.0 7 km ( 4 mi) SW of Ocotillo, CA
ML1.2 2006/12/26 12:51:41 35.958 -118.045 12.9 13 km ( 8 mi) SW of Coso Junction, CA

M5.5 2006/12/26 12:40:22 21.587 120.871 10.0 TAIWAN REGION

M6.9 2006/12/26 12:34:14 22.023 120.539 10.0 TAIWAN
M7.1 2006/12/26 12:26:22 21.819 120.543 10.0 TAIWAN REGION

---

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

ML1.2 2006/12/26 17:56:38 33.373 -116.349 6.6 14 km ( 9 mi) N of Borrego Springs, CA

M5.4 2006/12/26 17:35:10 21.810 120.638 7.3 TAIWAN REGION

ML1.5 2006/12/26 16:00:09 37.514 -118.422 11.3 17 km ( 10 mi) N of Bishop, CA

M5.3 2006/12/26 15:41:44 22.089 120.396 17.6 TAIWAN
M5.9 2006/12/26 15:19:45 48.424 154.758 10.0 KURIL ISLANDS

---

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

M4.2 2006/12/26 19:30:18 4.900 96.107 30.0 NORTHERN SUMATRA, INDONESIA

ML1.0 2006/12/26 18:51:49 36.109 -116.017 21.8 11 km ( 7 mi) S of Pahrump, NV
ML2.0 2006/12/26 18:38:32 38.796 -122.754 2.8 5 km ( 3 mi) E of The Geysers, CA
ML1.1 2006/12/26 18:21:55 36.078 -117.590 3.9 21 km ( 13 mi) S of Darwin, CA

---

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

ML1.5 2006/12/26 23:52:14 34.011 -117.225 16.8 5 km ( 3 mi) SSE of Loma Linda, CA

M5.2 2006/12/26 22:56:36 2.878 125.526 113.1 KEPULAUAN SANGIHE, INDONESIA
M5.7 2006/12/26 22:38:06 -55.629 146.280 10.0 WEST OF MACQUARIE ISLAND

ML1.2 2006/12/26 22:17:28 35.458 -120.750 0.7 8 km ( 5 mi) WSW of Atascadero, CA
ML2.5 2006/12/26 21:53:35 34.767 -121.361 25.5 65 km ( 40 mi) WSW of Pt. Sal, CA

---

---

December 27, 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 2006/12/27 02:35:20 36.074 -117.886 2.9 6 km ( 4 mi) ENE of Coso Junction, CA

M5.6 2006/12/27 02:30:39 22.008 120.486 23.1 TAIWAN

---

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

ML1.0 2006/12/27 05:43:14 36.830 -121.555 7.4 2 km ( 1 mi) SW of San Juan Bautista, CA

M4.4 2006/12/27 04:33:27 13.111 -90.033 75.8 OFFSHORE EL SALVADOR

ML1.4 2006/12/27 03:47:17 33.910 -116.899 15.4 2 km ( 1 mi) S of Banning, CA

---

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 2006/12/27 08:48:44 33.766 -116.087 5.6 13 km ( 8 mi) NE of Coachella, CA
ML1.5 2006/12/27 08:28:46 33.798 -116.184 5.7 10 km ( 6 mi) NNE of Indio, CA
ML1.2 2006/12/27 07:17:23 36.550 -121.141 3.6 2 km ( 1 mi) N of Pinnacles, CA
ML1.8 2006/12/27 06:51:42 32.692 -116.049 7.9 7 km ( 4 mi) SW of Ocotillo, CA

---

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

ML1.6 2006/12/27 09:55:52 38.809 -122.793 4.1 2 km ( 1 mi) NE of The Geysers, CA

M5.0 2006/12/27 09:17:03 -15.700 -173.920 35.0 TONGA

---

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

ML1.2 2006/12/27 13:21:44 34.562 -116.525 10.9 38 km ( 23 mi) WSW of Ludlow, CA
ML1.7 2006/12/27 13:16:54 34.069 -117.320 17.6 0 km ( 0 mi) NNE of Colton, CA

ML3.0 2006/12/27 13:11:27 37.449 -118.845 9.2 19 km ( 12 mi) SW of Toms Place, CA

ML1.0 2006/12/27 12:51:08 33.638 -116.762 17.0 12 km ( 8 mi) NW of Anza, CA

---

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

ML3.1 2006/12/27 17:42:49 46.198 -122.188 1.0 1 km ( 0 mi) WSW of Mount St. Helens Volcano, WA

ML1.0 2006/12/27 17:41:21 36.024 -120.607 0.4 21 km ( 13 mi) NW of Parkfield, CA
ML1.9 2006/12/27 17:17:00 38.802 -122.797 3.9 1 km ( 1 mi) ENE of The Geysers, CA
ML2.0 2006/12/27 15:19:46 33.020 -115.611 12.4 2 km ( 1 mi) SSE of Westmorland, CA
ML1.5 2006/12/27 15:12:26 33.017 -115.602 9.7 3 km ( 2 mi) SE of Westmorland, CA
ML1.5 2006/12/27 15:05:26 32.691 -116.044 9.3 7 km ( 4 mi) SW of Ocotillo, CA

---

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

ML2.2 2006/12/27 20:55:23 38.808 -122.790 2.4 2 km ( 1 mi) NE of The Geysers, CA

M6.0 2006/12/27 20:15:40 -5.735 154.440 369.9 BOUGAINVILLE REGION, PAPUA NEW GUINEA

ML2.0 2006/12/27 20:08:01 33.367 -116.359 11.2 13 km ( 8 mi) N of Borrego Springs, CA
ML2.3 2006/12/27 18:35:52 37.583 -118.857 8.5 12 km ( 8 mi) ESE of Mammoth Lakes, CA

---

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

ML1.5 2006/12/27 23:17:43 37.441 -118.847 9.6 20 km ( 12 mi) SW of Toms Place, CA
ML1.7 2006/12/27 21:52:23 36.232 -115.359 0.0 12 km ( 7 mi) N of Summerlin South, NV
ML1.5 2006/12/27 21:38:15 38.814 -122.816 3.2 2 km ( 1 mi) NNW of The Geysers, CA

ML3.0 2006/12/27 21:36:19 33.759 -116.081 5.1 12 km ( 8 mi) NE of Coachella, CA

ML4.2 2006/12/27 21:31:37 18.951 -155.490 40.3 16 km ( 10 mi) SE of Naalehu, HI

ML1.3 2006/12/27 21:05:04 38.831 -122.797 2.1 4 km ( 2 mi) NNE of The Geysers, CA

---

---

December 28, 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 2006/12/28 01:42:48 33.457 -116.455 14.7 23 km ( 14 mi) ESE of Anza, CA

ML3.2 2006/12/28 01:29:28 18.234 -63.888 21.9 36 km ( 22 mi) ESE of West End, British Virgin Islands

ML1.6 2006/12/28 00:30:13 33.702 -116.798 17.0 9 km ( 6 mi) WSW of Idyllwild, CA

ML3.3 2006/12/28 00:04:10 17.970 -68.478 81.1 73 km ( 45 mi) SE of La Romana, Dominican Republic

---

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

ML1.3 2006/12/28 05:40:16 38.818 -122.797 3.0 2 km ( 1 mi) NNE of The Geysers, CA
ML1.7 2006/12/28 05:18:29 33.836 -117.856 11.0 3 km ( 2 mi) E of Anaheim, CA
ML2.3 2006/12/28 04:54:02 33.840 -117.855 12.4 3 km ( 2 mi) E of Anaheim, CA
ML1.3 2006/12/28 03:52:14 36.068 -117.885 5.2 6 km ( 4 mi) ENE of Coso Junction, CA
ML1.7 2006/12/28 03:16:09 33.758 -116.080 9.0 12 km ( 8 mi) NE of Coachella, CA

---

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 2006/12/28 08:43:20 34.420 -116.489 8.9 33 km ( 21 mi) NNW of Yucca Valley, CA
ML1.1 2006/12/28 08:01:29 35.931 -117.627 3.3 29 km ( 18 mi) NW of Searles Valley, CA
ML1.7 2006/12/28 07:47:59 33.955 -116.514 14.5 1 km ( 1 mi) SW of Desert Hot Springs, CA
ML1.7 2006/12/28 06:21:19 38.576 -122.799 2.8 3 km ( 2 mi) N of Windsor, CA
ML1.6 2006/12/28 06:18:26 34.028 -117.233 16.7 3 km ( 2 mi) SE of Loma Linda, CA

---

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 2006/12/28 11:50:41 36.150 -117.940 5.6 12 km ( 7 mi) N of Coso Junction, CA
ML1.9 2006/12/28 09:57:36 36.293 -118.324 4.9 27 km ( 17 mi) W of Cartago, CA
ML1.8 2006/12/28 09:57:02 36.294 -118.323 5.2 27 km ( 17 mi) W of Cartago, CA

---

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 2006/12/28 14:42:34 37.470 -118.843 7.7 18 km ( 11 mi) SW of Toms Place, CA
ML2.8 2006/12/28 13:37:01 37.855 -122.235 9.6 4 km ( 2 mi) N of Piedmont, CA

---

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

M4.4 2006/12/28 16:51:16 21