GeoSeismic Labs Reports: March 2007

March 15-21, 2007

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

Strong Infrasonic Resonant Harmonic Energy 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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March 20, 2007: Peak Crustal Resonant Frequency = 0.66 Hz (-67.51 dBv)

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21 MAR 2007 ( 80)

ot = 05:19:27.53 +/- 1.51 VANCOUVER ISLAND, CANADA REGION
lat = 49.066 +/- 8.4
lon = -127.509 +/- 15.7 MAGNITUDE 4.4 (GS)
dep = 10.0 (geophysicist)

145 km (90 miles) W of Ucluelet, British Columbia, Canada (pop 1,500)
180 km (115 miles) S of Port Hardy, British Columbia, Canada
315 km (195 miles) WNW of VICTORIA, British Columbia, Canada
320 km (200 miles) W of Vancouver, British Columbia, Canada

Strong Infrasonic Resonant Harmonic Energy 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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March 9, 2007: Peak Crustal Resonant Frequency = 0.59 Hz (-67.34 dBv)

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Magnitude 2.4 - local magnitude (ML)
Time Friday, March 9, 2007 at 12:16:04 PM (PST)
Friday, March 9, 2007 at 20:16:04 (UTC)
Distance from Brawley, CA - 3 km (2 miles) SSE (160 degrees)
Imperial, CA - 13 km (8 miles) NNE (21 degrees)
Westmorland, CA - 14 km (8 miles) SE (137 degrees)
El Centro, CA - 18 km (11 miles) N (10 degrees)
Tijuana, Baja California, Mexico - 147 km (92 miles) ENE (71 degrees)

Coordinates 32 deg. 56.9 min. N (32.948N), 115 deg. 31.4 min. W (115.524W)
Depth 11.8 km (7.3 miles)

Event ID# ci10234961

Strong Infrasonic Resonant Harmonic Energy 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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March 8, 2007: Peak Crustal Resonant Frequency = 0.58 Hz (-67.00 dBv)

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Magnitude 4.7 - regional moment magnitude (Mw)
Time Thursday, March 8, 2007 at 7:17:32 PM (PST)
Friday, March 9, 2007 at 3:17:32 (UTC)
Distance from Bridgeport, CA - 22 km (14 miles) NNW (328 degrees)
Wichman, NV - 37 km (23 miles) WSW (246 degrees)
Bodie, CA - 39 km (24 miles) NW (308 degrees)
Hawthorne, NV - 66 km (41 miles) W (261 degrees)
Sacramento, CA - 184 km (114 miles) E (94 degrees)

Coordinates 38 deg. 25.7 min. N (38.428N), 119 deg. 22.0 min. W (119.367W)
Depth 10.4 km (6.5 miles)

Event ID# nc51179422

Strong Infrasonic Resonant Harmonic Energy 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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Acoustic Emissions Catalog Table of Contents

• All Infrasonic Spectrograms Captured During.................................
  January 2007
• All Infrasonic Spectrograms Captured During................................
  February 2007

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• All Infrasonic Spectrograms Captured From..............................
  March 1-7, 2007
• All Infrasonic Spectrograms Captured From............................
  March 8-14, 2007
• All Infrasonic Spectrograms Captured From..........................
  March 15-21, 2007
• All Infrasonic Spectrograms Captured From..........................
  March 22-31, 2007

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• All Infrasonic Spectrograms Captured on.....................................
  March 15, 2007
• All Infrasonic Spectrograms Captured on.....................................
  March 16, 2007
• All Infrasonic Spectrograms Captured on.....................................
  March 17, 2007
• All Infrasonic Spectrograms Captured on.....................................
  March 18, 2007
• All Infrasonic Spectrograms Captured on.....................................
  March 19, 2007
• All Infrasonic Spectrograms Captured on.....................................
  March 20, 2007
• All Infrasonic Spectrograms Captured on.....................................
  March 21, 2007

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• All Infrasonic Spectrograms Captured During.................................
  April 2007

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Strong Global Earthquakes

• The Molucca Sea M6.2 Earthquake ............................................
  March 17, 2007
• The So. of Panama M6.2 Earthquake ..........................................
  March 18, 2007
• The So. of Panama M6.0 Earthquake ..........................................
  March 18, 2007

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Pacific Plate's Stress Center Related Earthquakes

• The Fiji Islands Region M4.5 Earthquake .................................
  March 18, 2007
• The Tonga Region M4.8 Earthquake ..........................................
  March 21, 2007

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North American Earthquakes of Special Interest

• The Oaxaca, Mexico M5.1 Earthquake ........................................
  March 15, 2007
• The Perryville, AK M4.9 Earthquake ..........................................
  March 16, 2007
• The Chiapas, Mexico M4.2 Earthquake ........................................
  March 20, 2007
• The Vancouver Isl., Canada M4.4 Earthquake ..............................
  March 20, 2007

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California, Nevada, and Baja Mexico Earthquakes

• The Templeton, CA M3.0 Earthquake ........................................
  March 15, 2007
• The Shandon, CA M3.1 Earthquake ...........................................
  March 19, 2007

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North American Micro Quakes of Special Interest

• The La Verne, CA M2.7 Earthquake ...........................................
  March 16, 2007

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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.

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.

• 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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Contributions Made to GeoSeismic Labs

To keep the flow of this important information & data ongoing to you, I personally never accept Government Grants, or Funding for this project. Only small contributions from Individuals and sponsers who are supporters of this work will be accepted by GeoSeismic Labs, which is a State Registered Non-Profit Public Benefit Corporation since 2001.

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

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Useful Links & Other Related Sources of Information

• 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
  

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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,
  October 2005., and   September 2006.

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.

- Frank Condon

Caption: Global Tectonic Plates and Volcanoes

My philosophy, quite simply stated is:

The Plate Boundary including the western edge of the ECSZ is the
interface for the transmission of Infrasonic, or AE. 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.

13 JAN 2007 ( 13)

ot = 04:23:20.96 +/- 0.14 EAST OF KURIL ISLANDS
lat = 46.288 +/- 3.5
lon = 154.448 +/- 2.6 MAGNITUDE 8.2 (GS)
dep = 10.0 (geophysicist)

505 km (315 miles) SSW of Severo-Kuril'sk, Kuril Islands, Russia
525 km (325 miles) ENE of Kuril'sk, Kuril Islands
1710 km (1060 miles) NE of TOKYO, Japan
7260 km (4510 miles) NE of MOSCOW, Russia

21 JAN 2007 ( 21)

ot = 11:27:43.21 +/- 0.18 MOLUCCA SEA
lat = 1.240 +/- 4.7
lon = 126.403 +/- 5.1 MAGNITUDE 7.5 (GCMT)
dep = 10.0 (geophysicist)

120 km (75 miles) WNW of Ternate, Moluccas, Indonesia (pop 83,000)
175 km (110 miles) E of Manado, Sulawesi, Indonesia
1590 km (990 miles) SSE of MANILA, Philippines
2325 km (1450 miles) ENE of JAKARTA, Java, Indonesia

Felt (V) at Manado, Indonesia. Also felt at Bitung, Indonesia.

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Daily Infrasonic Spectrograms

March 15, 2007

24 Hour Peak Crustal Resonant Frequency = 0.64 Hz (-67.41 dBv)

00:00-03:00 UTC

Return to Table of Contents
Caption: Infrasonic Resonant 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

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ML1.4 2007/03/15 02:40:40 37.864 -122.251 5.5 2 km ( 1 mi) ESE of Berkeley, CA
ML1.5 2007/03/15 02:10:10 39.621 -118.898 12.0 19 km ( 12 mi) NNW of Fallon, NV
ML1.0 2007/03/15 01:49:43 37.659 -118.855 6.3 11 km ( 7 mi) ENE of Mammoth Lakes, CA
ML1.5 2007/03/15 01:47:46 37.650 -118.851 7.2 11 km ( 7 mi) E of Mammoth Lakes, CA
ML1.1 2007/03/15 01:42:52 37.662 -118.855 5.7 11 km ( 7 mi) ENE of Mammoth Lakes, CA
ML1.6 2007/03/15 01:39:57 37.651 -118.851 7.3 11 km ( 7 mi) E of Mammoth Lakes, CA

M5.4 2007/03/15 01:34:13 -0.866 127.340 10.0 HALMAHERA, INDONESIA

ML1.3 2007/03/15 01:00:01 37.661 -118.854 6.2 11 km ( 7 mi) ENE of Mammoth Lakes, CA
ML1.5 2007/03/15 00:43:48 34.123 -117.468 7.2 3 km ( 2 mi) NNW of Fontana, CA

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03:00 - 06:00 UTC

Return to Table of Contents
Caption: Infrasonic Resonant 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

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ML1.5 2007/03/15 05:53:10 36.149 -118.050 2.7 13 km ( 8 mi) SSW of Olancha, CA

M4.6 2007/03/15 05:43:11 41.980 141.236 119.6 HOKKAIDO, JAPAN REGION

ML1.5 2007/03/15 05:25:33 34.292 -116.825 5.9 4 km ( 2 mi) NNE of Big Bear City, CA
ML1.1 2007/03/15 03:58:10 37.658 -118.855 6.3 11 km ( 7 mi) ENE of Mammoth Lakes, CA
ML2.1 2007/03/15 03:52:53 37.652 -118.853 7.4 11 km ( 7 mi) E of Mammoth Lakes, CA
ML1.6 2007/03/15 03:52:44 38.745 -122.693 1.1 3 km ( 2 mi) S of Anderson Springs, CA

ML3.5 2007/03/15 03:21:59 17.988 -67.058 5.1 2 km ( 1 mi) NW of La Parguera, PR

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06:00-09:00 UTC

Return to Table of Contents
Caption: Infrasonic Resonant 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

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M4.6 2007/03/15 07:48:33 46.925 153.008 57.5 KURIL ISLANDS

ML1.9 2007/03/15 07:15:36 35.526 -120.819 7.8 10 km ( 6 mi) WSW of Templeton, CA
ML1.5 2007/03/15 06:49:56 38.822 -122.802 3.7 3 km ( 2 mi) N of The Geysers, CA

ML3.1 2007/03/15 06:30:28 17.939 -67.104 9.8 7 km ( 4 mi) WSW of La Parguera, PR

M5.7 2007/03/15 06:07:55 4.219 126.794 10.0 KEPULAUAN TALAUD, INDONESIA

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09:00-12:00 UTC

Return to Table of Contents
Caption: Infrasonic Resonant 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

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ML1.6 2007/03/15 11:42:08 33.662 -116.719 17.6 9 km ( 6 mi) S of Idyllwild, CA
ML1.9 2007/03/15 10:15:06 38.778 -122.755 1.2 5 km ( 3 mi) ESE of The Geysers, CA
ML1.4 2007/03/15 10:07:50 33.255 -116.082 2.4 12 km ( 8 mi) WSW of Salton City, CA
ML1.5 2007/03/15 10:01:19 38.790 -122.743 2.1 5 km ( 3 mi) WNW of Anderson Springs, CA
ML2.0 2007/03/15 09:58:02 37.880 -122.250 10.1 2 km ( 1 mi) ENE of Berkeley, CA

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12:00-15:00 UTC

Return to Table of Contents
Caption: Infrasonic Resonant 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

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M4.5 2007/03/15 14:37:41 46.794 153.057 10.0 KURIL ISLANDS

ML1.7 2007/03/15 13:18:19 37.199 -115.140 8.0 19 km ( 12 mi) S of Alamo, NV

ML5.1 2007/03/15 13:13:06 16.644 -96.886 51.6 OAXACA, MEXICO
M4.8 2007/03/15 12:48:19 -3.841 126.290 10.0 BURU, INDONESIA

ML1.3 2007/03/15 12:38:09 35.782 -117.646 7.3 18 km ( 11 mi) N of Ridgecrest, CA
ML1.8 2007/03/15 12:10:07 35.926 -120.481 4.6 5 km ( 3 mi) WNW of Parkfield, CA

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15:00-18:00 UTC

Return to Table of Contents
Caption: Infrasonic Resonant 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

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ML1.0 2007/03/15 17:47:04 36.804 -115.382 0.0 37 km ( 23 mi) NE of Indian Springs, NV
ML1.7 2007/03/15 17:29:50 34.431 -116.493 0.0 35 km ( 21 mi) NNW of Yucca Valley, CA
ML1.3 2007/03/15 17:26:56 35.670 -121.096 7.7 9 km ( 6 mi) ENE of San Simeon, CA

M4.0 2007/03/15 16:35:34 51.573 16.090 5.0 POLAND

M4.6 2007/03/15 16:26:08 -16.203 67.712 10.0 MID-INDIAN RIDGE

ML1.4 2007/03/15 16:05:29 33.931 -117.091 6.9 11 km ( 7 mi) W of Beaumont, CA
ML2.1 2007/03/15 15:53:56 38.778 -122.748 2.1 5 km ( 3 mi) W of Anderson Springs, CA
ML1.5 2007/03/15 15:34:31 38.823 -122.822 2.6 3 km ( 2 mi) NNW of The Geysers, CA
ML1.1 2007/03/15 15:14:37 38.826 -122.785 13.9 4 km ( 2 mi) NNE of The Geysers, CA

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18:00-21:00 UTC

Return to Table of Contents
Caption: Infrasonic Resonant 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

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ML2.3 2007/03/15 20:14:50 35.161 -117.365 2.2 31 km ( 20 mi) ENE of Boron, CA
ML1.8 2007/03/15 19:24:57 38.657 -117.035 0.0 58 km ( 36 mi) SSE of Washington, NV
ML1.7 2007/03/15 19:14:46 33.453 -116.627 16.1 12 km ( 7 mi) SSE of Anza, CA
ML1.5 2007/03/15 19:03:30 37.561 -118.836 11.3 14 km ( 9 mi) W of Toms Place, CA

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21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

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ML1.8 2007/03/15 23:52:01 34.944 -119.146 15.7 11 km ( 7 mi) N of Pine Mountain Club, CA
ML1.1 2007/03/15 23:34:50 33.491 -116.402 18.1 23 km ( 14 mi) SSW of La Quinta, CA
ML1.5 2007/03/15 23:07:05 38.805 -122.817 3.4 1 km ( 1 mi) NW of The Geysers, CA
ML2.7 2007/03/15 23:03:32 32.099 -115.865 1.7 72 km ( 45 mi) SSW of Mexicali, Mexico
ML1.2 2007/03/15 22:24:50 36.574 -115.865 16.0 17 km ( 10 mi) W of Indian Springs, NV
ML1.1 2007/03/15 21:03:58 33.285 -116.842 0.0 8 km ( 5 mi) SSE of Palomar Observatory, CA

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March 16, 2007

24 Hour Peak Crustal Resonant Frequency = 0.60 Hz (-67.01 dBv)

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

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ML1.4 2007/03/16 02:32:49 33.513 -116.576 11.6 10 km ( 6 mi) ESE of Anza, CA

ML3.2 2007/03/16 02:31:03 18.227 -64.889 115.4 13 km ( 8 mi) S of Anna's Retreat, US Virgin Islands

ML1.9 2007/03/16 02:20:08 38.763 -122.693 3.4 1 km ( 1 mi) S of Anderson Springs, CA

ML3.4 2007/03/16 01:50:52 19.044 -155.195 4.2 35 km ( 22 mi) ESE of Pahala, HI

ML1.5 2007/03/16 01:13:31 33.785 -117.282 15.2 6 km ( 3 mi) WSW of Perris, CA
ML1.8 2007/03/16 00:22:33 39.848 -122.663 13.2 22 km ( 14 mi) NNE of Alder Springs, CA
ML1.6 2007/03/16 00:17:41 40.306 -118.142 0.0 32 km ( 20 mi) ENE of Lovelock, NV
ML1.4 2007/03/16 00:07:18 38.777 -122.725 1.9 3 km ( 2 mi) W of Anderson Springs, CA

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03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/16 04:24:42 33.720 -116.825 17.2 8 km ( 5 mi) ESE of Valle Vista, CA
ML1.7 2007/03/16 04:08:06 33.404 -117.100 25.1 5 km ( 3 mi) E of Rainbow, CA
ML1.5 2007/03/16 04:06:50 33.673 -116.693 10.6 8 km ( 5 mi) SSE of Idyllwild, CA
ML1.1 2007/03/16 03:29:19 33.370 -116.388 9.9 14 km ( 9 mi) N of Borrego Springs, CA

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06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

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ML2.0 2007/03/16 08:55:04 38.433 -119.361 10.2 23 km ( 14 mi) NNW of Bridgeport, CA
ML2.2 2007/03/16 08:43:19 38.776 -122.755 1.5 5 km ( 3 mi) ESE of The Geysers, CA
ML1.7 2007/03/16 08:36:08 33.334 -117.113 43.0 9 km ( 6 mi) SSE of Rainbow, CA
ML1.6 2007/03/16 08:34:07 34.001 -117.232 16.9 6 km ( 3 mi) SSE of Loma Linda, CA
ML1.2 2007/03/16 08:26:09 34.007 -116.710 12.7 12 km ( 7 mi) NNE of Cabazon, CA
ML1.3 2007/03/16 07:54:26 37.410 -122.226 3.5 3 km ( 2 mi) ESE of Woodside, CA

ML3.0 2007/03/16 07:30:03 35.523 -120.803 4.2 9 km ( 6 mi) WSW of Templeton, CA

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09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

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M5.1 2007/03/16 11:35:04 9.684 126.188 85.8 MINDANAO, PHILIPPINES
M4.7 2007/03/16 11:17:48 9.801 126.503 78.2 MINDANAO, PHILIPPINES

ML2.4 2007/03/16 10:56:55 34.442 -119.133 20.3 10 km ( 6 mi) E of Ojai, CA
ML2.4 2007/03/16 10:54:31 34.424 -119.165 20.3 8 km ( 5 mi) ESE of Ojai, CA
ML1.0 2007/03/16 09:55:00 35.677 -121.107 6.1 8 km ( 5 mi) ENE of San Simeon, CA

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12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

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M4.8 2007/03/16 14:53:39 -16.297 -71.132 118.4 SOUTHERN PERU
ML4.4 2007/03/16 14:24:27 14.322 -91.166 117.8 GUATEMALA

ML1.0 2007/03/16 12:30:42 33.472 -117.087 13.5 5 km ( 3 mi) SE of Temecula, CA
ML1.5 2007/03/16 12:07:59 34.471 -119.149 9.3 9 km ( 6 mi) ENE of Ojai, CA

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15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

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ML1.5 2007/03/16 17:44:17 33.740 -117.578 4.8 8 km ( 5 mi) NE of Portola Hills, CA
ML1.8 2007/03/16 17:13:32 37.202 -121.449 6.2 18 km ( 11 mi) NE of San Martin, CA
ML1.2 2007/03/16 16:45:49 33.475 -117.092 13.5 4 km ( 3 mi) SE of Temecula, CA
ML1.6 2007/03/16 16:29:29 36.015 -120.593 3.8 19 km ( 12 mi) NW of Parkfield, CA
ML2.0 2007/03/16 15:55:19 35.606 -120.736 5.6 6 km ( 4 mi) WSW of Paso Robles, CA
ML1.4 2007/03/16 15:32:00 33.784 -116.788 15.6 8 km ( 5 mi) WNW of Idyllwild, CA
ML1.9 2007/03/16 15:22:34 33.478 -116.583 16.2 12 km ( 7 mi) SE of Anza, CA

M4.3 2007/03/16 15:04:44 46.707 153.016 10.0 KURIL ISLANDS

---

18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/16 20:21:46 33.936 -117.416 0.0 2 km ( 1 mi) SW of Riverside, CA
ML1.0 2007/03/16 20:15:02 36.053 -120.682 5.0 20 km ( 13 mi) E of San Ardo, CA
ML1.1 2007/03/16 20:08:13 34.080 -116.766 16.5 6 km ( 4 mi) ESE of Mt. San Gorgonio, CA
ML1.6 2007/03/16 19:59:33 38.797 -122.765 2.1 4 km ( 2 mi) E of The Geysers, CA
ML1.4 2007/03/16 19:41:16 36.028 -120.620 0.1 22 km ( 14 mi) NW of Parkfield, CA
ML1.8 2007/03/16 19:32:46 33.206 -116.426 12.8 7 km ( 4 mi) SW of Borrego Springs, CA
ML1.4 2007/03/16 19:02:03 36.104 -115.456 0.0 8 km ( 5 mi) NW of Blue Diamond, NV
ML1.6 2007/03/16 18:35:00 36.022 -120.616 2.3 21 km ( 13 mi) NW of Parkfield, CA
ML1.1 2007/03/16 18:18:40 37.754 -121.993 3.7 4 km ( 2 mi) W of San Ramon, CA

---

21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

---

ML4.9 2007/03/16 23:49:39 55.066 -158.567 35.0 ALASKA PENINSULA

ML1.8 2007/03/16 23:24:55 37.979 -114.344 16.0 11 km ( 7 mi) W of Ursine, NV
ML1.6 2007/03/16 23:05:35 37.753 -122.006 8.0 5 km ( 3 mi) W of San Ramon, CA
ML1.7 2007/03/16 22:20:01 33.200 -116.418 14.6 7 km ( 4 mi) SW of Borrego Springs, CA
ML1.1 2007/03/16 22:19:03 36.788 -121.482 5.6 8 km ( 5 mi) SE of San Juan Bautista, CA
ML1.5 2007/03/16 21:51:38 32.919 -117.125 1.0 10 km ( 6 mi) SW of Poway, CA
ML1.2 2007/03/16 21:43:34 37.498 -117.811 8.0 14 km ( 8 mi) NW of Sylvania, NV

M4.4 2007/03/16 21:08:11 70.010 140.436 10.0 NORTHEASTERN SAKHA, RUSSIA

---

March 17, 2007

24 Hour Peak Crustal Resonant Frequency = 0.58 Hz (-66.89 dBv)

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 02:30:11 37.889 -122.240 7.3 4 km ( 2 mi) ENE of Berkeley, CA
ML1.4 2007/03/17 01:42:01 32.892 -116.449 23.5 10 km ( 6 mi) NE of Pine Valley, CA
ML1.9 2007/03/17 01:30:52 34.370 -117.912 23.5 19 km ( 12 mi) SSE of Littlerock, CA
ML2.9 2007/03/17 01:27:58 37.445 -118.843 10.0 19 km ( 12 mi) SW of Toms Place, CA
ML2.4 2007/03/17 01:21:45 38.831 -122.868 3.9 6 km ( 4 mi) NW of The Geysers, CA
ML1.5 2007/03/17 01:08:43 38.435 -119.355 9.4 23 km ( 14 mi) NNW of Bridgeport, CA
ML2.2 2007/03/17 01:03:54 35.300 -119.899 0.0 11 km ( 7 mi) ESE of Simmler, CA
ML1.4 2007/03/17 00:33:09 38.828 -122.784 1.0 4 km ( 2 mi) NNE of The Geysers, CA
ML2.0 2007/03/17 00:32:25 38.812 -122.791 4.5 2 km ( 1 mi) NE of The Geysers, CA

---

03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 05:53:39 33.225 -115.897 26.1 10 km ( 6 mi) SE of Salton City, CA
ML2.7 2007/03/17 05:40:12 38.433 -119.368 5.3 23 km ( 14 mi) NNW of Bridgeport, CA
ML1.6 2007/03/17 04:48:57 36.592 -121.140 8.2 7 km ( 4 mi) N of Pinnacles, CA
ML1.4 2007/03/17 04:40:49 32.865 -116.258 8.1 25 km ( 16 mi) E of Pine Valley, CA
ML1.1 2007/03/17 04:30:37 35.983 -120.543 2.0 14 km ( 8 mi) NW of Parkfield, CA
ML1.4 2007/03/17 04:14:48 38.105 -116.278 0.0 12 km ( 8 mi) SE of Warm Springs, NV
ML1.0 2007/03/17 03:38:20 35.984 -120.543 2.0 14 km ( 8 mi) NW of Parkfield, CA
ML2.7 2007/03/17 03:02:27 34.184 -117.739 5.1 8 km ( 5 mi) NNE of La Verne, CA

---

06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 07:25:37 38.440 -118.372 0.0 18 km (11 mi) WSW of Luning, NV
ML1.5 2007/03/17 06:25:24 33.921 -116.729 15.7 4 km ( 2 mi) ENE of Cabazon, CA

---

09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 11:10:37 36.017 -120.628 5.9 22 km ( 14 mi) NW of Parkfield, CA
ML1.7 2007/03/17 10:51:24 33.195 -116.069 2.5 8 km ( 5 mi) NE of Ocotillo Wells, CA
ML1.3 2007/03/17 09:50:43 37.148 -121.539 8.3 9 km ( 5 mi) NE of San Martin, CA

---

12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 14:55:39 37.554 -118.850 9.6 15 km ( 9 mi) SE of Mammoth Lakes, CA

M5.0 2007/03/17 14:20:25 26.797 58.265 42.2 SOUTHEASTERN IRAN

ML1.7 2007/03/17 13:56:38 37.337 -121.599 9.1 20 km ( 13 mi) E of Alum Rock, CA
ML1.6 2007/03/17 13:02:51 34.431 -119.124 15.1 10 km ( 6 mi) NNW of Santa Paula, CA

---

15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 17:58:48 33.403 -116.607 16.9 18 km ( 11 mi) SSE of Anza, CA
ML2.2 2007/03/17 17:52:47 34.179 -116.822 5.3 9 km ( 6 mi) N of Mt. San Gorgonio, CA

M6.2 2007/03/17 17:42:23 1.128 126.243 10.0 MOLUCCA SEA

M4.0 2007/03/17 15:52:30 0.683 123.772 282.6 MINAHASA, SULAWESI, INDONESIA

ML3.7 2007/03/17 15:08:39 18.606 -64.221 9.0 17 km ( 11 mi) SE of Settlement, British Virgin Islands

---

18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 20:57:53 36.594 -121.196 5.5 8 km ( 5 mi) NW of Pinnacles, CA
ML1.4 2007/03/17 20:02:03 32.588 -116.790 1.4 15 km ( 9 mi) W of Tecate, Mexico
ML1.8 2007/03/17 19:43:50 34.177 -116.823 6.1 9 km ( 5 mi) N of Mt. San Gorgonio, CA
ML1.1 2007/03/17 18:48:35 37.656 -117.304 4.0 8 km ( 5 mi) SSW of West Spring, NV
ML1.5 2007/03/17 18:48:19 38.320 -118.166 0.0 9 km ( 5 mi) NW of Tonopah Junction, NV

---

21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/17 23:40:06 34.181 -116.813 8.6 9 km ( 6 mi) N of Mt. San Gorgonio, CA
ML1.5 2007/03/17 23:13:43 38.822 -122.802 1.8 3 km ( 2 mi) N of The Geysers, CA
ML2.8 2007/03/17 23:09:09 38.821 -122.803 3.2 3 km ( 2 mi) N of The Geysers, CA

ML6.0 2007/03/17 22:43:10 4.553 -78.504 10.0 SOUTH OF PANAMA

ML1.9 2007/03/17 22:08:05 39.040 -118.891 0.0 10 km ( 6 mi) NW of Schurz, NV
ML1.5 2007/03/17 21:49:25 35.672 -121.065 5.8 12 km ( 7 mi) ENE of San Simeon, CA
ML2.7 2007/03/17 21:34:46 37.339 -121.597 8.2 20 km ( 13 mi) E of Alum Rock, CA
ML1.7 2007/03/17 21:22:11 37.337 -121.600 9.1 20 km ( 13 mi) E of Alum Rock, CA

---

March 18, 2007

24 Hour Peak Crustal Resonant Frequency = 0.59 Hz (-67.10 dBv)

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

---

ML6.2 2007/03/18 02:11:06 4.556 -78.504 10.0 SOUTH OF PANAMA

M5.6 2007/03/18 01:25:25 42.328 143.918 35.0 HOKKAIDO, JAPAN REGION

ML1.6 2007/03/18 00:46:50 34.438 -119.100 14.5 10 km ( 6 mi) NNW of Santa Paula, CA

---

03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/18 05:39:24 39.450 -123.049 20.9 9 km ( 6 mi) WNW of Lake Pillsbury, CA
ML2.4 2007/03/18 05:33:40 36.468 -117.867 3.7 2 km ( 1 mi) SSE of Keeler, CA

ML3.6 2007/03/18 04:58:55 19.281 -67.013 25.3 87 km ( 54 mi) N of Isabela, PR

ML1.7 2007/03/18 04:12:19 34.379 -117.373 8.0 7 km ( 4 mi) WSW of Hesperia, CA
ML1.3 2007/03/18 04:05:43 34.376 -117.692 11.0 6 km ( 4 mi) WNW of Wrightwood, CA

---

06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

---

ML2.2 2007/03/18 08:32:20 32.232 -115.868 6.9 58 km (36 mi) SSE of Ocotillo, CA
ML1.7 2007/03/18 08:17:50 38.803 -122.778 0.8 3 km ( 2 mi) ENE of The Geysers, CA

M5.1 2007/03/18 07:52:55 -28.576 -70.815 25.9 ATACAMA, CHILE
M5.0 2007/03/18 06:48:18 -9.556 124.543 25.0 TIMOR REGION

ML3.2 2007/03/18 06:22:02 19.224 -67.066 20.0 81 km ( 50 mi) N of Isabela, PR
ML3.2 2007/03/18 06:22:01 19.280 -67.077 35.9 87 km ( 54 mi) N of Isabela, PR
ML3.2 2007/03/18 06:22:01 19.280 -67.077 35.9 87 km ( 54 mi) N of Isabela, PR

---

09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/18 09:43:06 38.795 -122.750 2.9 5 km ( 3 mi) E of The Geysers, CA

---

12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/18 14:41:25 33.251 -116.106 2.4 12 km ( 8 mi) NNE of Ocotillo Wells, CA
ML1.6 2007/03/18 14:23:04 38.820 -122.809 3.9 2 km ( 2 mi) N of The Geysers, CA

M4.5 2007/03/18 14:19:03 -17.966 -178.472 564.1 FIJI REGION

ML1.5 2007/03/18 14:05:55 36.551 -121.049 8.0 9 km ( 5 mi) ENE of Pinnacles, CA
ML1.7 2007/03/18 13:14:39 40.419 -124.333 9.7 11 km ( 7 mi) NNW of Petrolia, CA
ML1.5 2007/03/18 12:19:40 38.426 -119.357 8.5 22 km ( 14 mi) NNW of Bridgeport, CA

---

15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/18 17:59:14 40.269 -121.186 0.1 6 km ( 3 mi) SE of Chester, CA
ML1.1 2007/03/18 17:48:36 36.782 -121.469 3.8 9 km ( 6 mi) SE of San Juan Bautista, CA
ML2.5 2007/03/18 17:36:24 40.428 -124.705 22.1 37 km ( 23 mi) WNW of Petrolia, CA
ML2.1 2007/03/18 17:34:14 36.304 -120.896 3.6 22 km ( 14 mi) NNE of San Lucas, CA
ML2.0 2007/03/18 16:22:52 37.415 -117.306 0.0 13 km ( 8 mi) NNW of Tokop, NV

M4.4 2007/03/18 15:56:00 48.302 154.869 10.0 KURIL ISLANDS

ML3.6 2007/03/18 15:19:58 19.496 -66.004 52.7 118 km ( 73 mi) NNE of Dorado, PR

ML1.0 2007/03/18 15:10:37 37.435 -117.357 16.0 17 km ( 11 mi) NNW of Tokop, NV
ML1.7 2007/03/18 15:01:19 38.825 -122.771 1.2 4 km ( 3 mi) NE of The Geysers, CA

---

18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/18 20:55:54 33.725 -117.207 0.5 2 km ( 1 mi) NNW of Sun City, CA
ML1.4 2007/03/18 20:41:55 34.122 -117.246 9.4 4 km ( 2 mi) W of Highland, CA
ML1.2 2007/03/18 20:41:46 37.753 -122.007 8.0 5 km ( 3 mi) W of San Ramon, CA
ML1.5 2007/03/18 20:16:11 35.393 -117.857 3.7 19 km ( 12 mi) W of Randsburg, CA
ML1.4 2007/03/18 19:47:49 34.246 -116.437 1.6 13 km ( 8 mi) N of Yucca Valley, CA
ML2.1 2007/03/18 19:19:17 35.393 -117.853 6.2 18 km ( 11 mi) W of Randsburg, CA
ML1.1 2007/03/18 18:01:13 37.435 -117.306 8.0 15 km ( 10 mi) NNW of Tokop, NV

---

21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/18 22:32:42 38.837 -122.805 2.9 4 km ( 3 mi) N of The Geysers, CA
ML1.6 2007/03/18 22:16:43 37.008 -118.242 0.2 18 km ( 11 mi) SSE of Big Pine, CA
ML1.1 2007/03/18 21:24:22 37.423 -121.671 5.2 15 km ( 9 mi) ENE of Alum Rock, CA

---

March 19, 2007

24 Hour Peak Crustal Resonant Frequency = 0.21 Hz (-65.83 dBv)

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 01:45:05 34.187 -117.465 7.1 7 km ( 4 mi) SW of Devore, CA
ML1.2 2007/03/19 01:19:47 37.505 -118.840 7.8 15 km ( 10 mi) WSW of Toms Place, CA
ML1.5 2007/03/19 00:58:41 32.902 -116.019 12.3 18 km ( 11 mi) N of Ocotillo, CA
ML2.0 2007/03/19 00:47:49 36.075 -117.850 3.3 9 km ( 6 mi) ENE of Coso Junction, CA
ML1.1 2007/03/19 00:07:59 39.215 -120.061 8.9 4 km ( 2 mi) SSW of Tahoe Vista, CA

---

03:00 - 06:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 05:52:57 40.292 -121.389 1.6 13 km ( 8 mi) W of Chester, CA
ML1.5 2007/03/19 05:49:49 33.628 -116.749 8.0 11 km ( 7 mi) NW of Anza, CA
ML1.7 2007/03/19 05:46:38 38.774 -122.750 2.0 5 km ( 3 mi) W of Anderson Springs, CA
ML1.8 2007/03/19 04:46:41 35.758 -118.350 3.7 7 km ( 4 mi) E of Kernville, CA
ML1.4 2007/03/19 04:37:21 37.876 -122.254 9.0 2 km ( 1 mi) ENE of Berkeley, CA
ML1.5 2007/03/19 04:17:57 34.032 -116.967 15.9 8 km ( 5 mi) E of Yucaipa, CA
ML1.3 2007/03/19 03:50:59 33.736 -116.534 11.3 10 km ( 6 mi) S of Palm Springs, CA

---

06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 08:59:35 33.299 -116.731 21.6 7 km ( 5 mi) NNE of Lake Henshaw, CA
ML1.4 2007/03/19 08:57:42 36.570 -121.164 3.6 5 km ( 3 mi) NNW of Pinnacles, CA
ML2.1 2007/03/19 08:26:27 40.293 -121.372 6.6 12 km ( 7 mi) W of Chester, CA
ML2.6 2007/03/19 08:23:55 40.288 -121.359 0.8 11 km ( 7 mi) W of Chester, CA
ML1.5 2007/03/19 07:29:23 33.418 -116.590 15.3 17 km ( 11 mi) SSE of Anza, CA
ML2.1 2007/03/19 07:26:31 39.267 -123.233 5.9 13 km ( 8 mi) N of Ukiah, CA

---

09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 10:06:16 33.391 -116.391 11.3 16 km ( 10 mi) N of Borrego Springs, CA
ML1.4 2007/03/19 10:01:50 37.331 -114.832 0.0 17 km ( 11 mi) SSW of Helene, NV
ML1.6 2007/03/19 09:50:23 37.355 -114.957 0.0 18 km ( 11 mi) E of Alamo, NV

---

12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 13:12:57 33.425 -116.606 15.5 16 km ( 10 mi) SSE of Anza, CA
ML1.6 2007/03/19 12:37:28 38.821 -122.784 2.1 3 km ( 2 mi) NE of The Geysers, CA
ML1.3 2007/03/19 12:24:08 37.901 -122.109 14.5 1 km ( 1 mi) NNE of Lafayette, CA

---

15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 17:47:20 37.472 -121.877 0.3 4 km ( 3 mi) NNE of Milpitas, CA
ML1.9 2007/03/19 17:47:14 36.281 -120.454 8.1 18 km ( 11 mi) NNW of Coalinga, CA

M4.7 2007/03/19 17:43:57 1.264 125.873 90.4 MOLUCCA SEA

ML1.2 2007/03/19 17:40:47 38.814 -122.784 2.8 3 km ( 2 mi) NE of The Geysers, CA
ML2.5 2007/03/19 16:35:20 36.600 -120.569 9.7 22 km ( 14 mi) NNE of New Idria, CA
ML1.8 2007/03/19 15:38:37 33.573 -117.404 6.0 9 km ( 6 mi) SW of Lakeland Village, CA
ML1.8 2007/03/19 15:06:53 33.461 -116.893 39.5 12 km ( 8 mi) NNW of Palomar Observatory, CA

---

18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

---

ML2.8 2007/03/19 19:43:57 40.286 -121.362 7.5 11 km ( 7 mi) W of Chester, CA
ML1.8 2007/03/19 19:35:01 34.508 -118.799 14.9 11 km ( 7 mi) N of Piru, CA

---

21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 23:21:15 -24.112 -67.060 167.9 SALTA, ARGENTINA

ML1.3 2007/03/19 23:10:31 37.866 -121.984 8.5 4 km ( 3 mi) NW of Diablo, CA
ML1.3 2007/03/19 23:08:03 36.038 -117.514 6.5 27 km ( 17 mi) SSE of Darwin, CA
ML1.7 2007/03/19 23:03:57 37.551 -118.850 9.4 15 km ( 9 mi) SE of Mammoth Lakes, CA

ML3.1 2007/03/19 22:55:55 35.780 -120.332 8.9 14 km ( 9 mi) NNE of Shandon, CA

ML1.4 2007/03/19 22:46:56 36.171 -117.635 4.0 11 km ( 7 mi) SSW of Darwin, CA
ML1.2 2007/03/19 21:56:35 36.028 -117.518 5.2 28 km ( 17 mi) SSE of Darwin, CA
ML2.6 2007/03/19 21:39:26 36.037 -117.521 3.9 26 km ( 16 mi) SSE of Darwin, CA
ML1.9 2007/03/19 21:06:12 38.750 -122.709 3.0 3 km ( 2 mi) SSW of Anderson Springs, CA

---

March 20, 2007

Peak Crustal Resonant Frequency = 0.66 Hz (-67.51 dBv)

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/20 02:44:17 38.813 -122.738 4.0 3 km ( 2 mi) SSW of Cobb, CA
ML1.7 2007/03/20 02:26:03 33.651 -116.720 16.4 11 km ( 7 mi) S of Idyllwild, CA

ML3.2 2007/03/20 02:17:29 18.908 -64.981 21.7 60 km ( 38 mi) NNW of Little Harbour, British Virgin Islands

ML2.2 2007/03/20 02:04:27 36.678 -121.454 5.5 13 km ( 8 mi) NNE of Chualar, CA
ML2.6 2007/03/20 02:03:36 39.308 -123.251 6.3 14 km ( 9 mi) SE of Willits, CA
ML1.1 2007/03/20 00:46:22 36.549 -121.040 9.1 9 km ( 6 mi) ENE of Pinnacles, CA
ML1.2 2007/03/20 00:18:49 33.657 -116.724 18.2 10 km ( 6 mi) S of Idyllwild, CA
ML1.2 2007/03/20 00:04:16 36.237 -117.654 3.8 7 km ( 4 mi) WSW of Darwin, CA

---

03:00-06:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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

---

ML2.8 2007/03/20 05:32:02 35.780 -120.334 9.1 14 km ( 9 mi) NNE of Shandon, CA
ML2.2 2007/03/20 04:55:24 40.306 -124.581 19.7 25 km (16 mi) W of Petrolia, CA
ML1.1 2007/03/20 04:10:31 37.491 -116.850 8.0 42 km ( 26 mi) ENE of Tokop, NV
ML1.2 2007/03/20 03:59:23 36.908 -121.335 5.7 9 km ( 5 mi) NE of Hollister, CA
ML1.5 2007/03/20 03:36:46 35.979 -120.520 4.8 12 km ( 7 mi) NW of Parkfield, CA

ML3.3 2007/03/20 03:32:04 18.824 -67.257 46.5 43 km ( 27 mi) NNW of Rafael Hernàndez, PR

M5.5 2007/03/20 03:10:32 9.251 126.293 35.0 MINDANAO, PHILIPPINES

ML1.5 2007/03/20 03:05:59 38.827 -122.793 3.5 3 km ( 2 mi) NNE of The Geysers, CA
ML1.8 2007/03/20 03:04:45 38.824 -122.794 3.8 3 km ( 2 mi) NNE of The Geysers, CA

---

06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/20 08:56:09 35.710 -118.324 17.5 8 km ( 5 mi) N of Weldon, CA

M4.4 2007/03/20 08:38:19 48.342 154.185 80.9 KURIL ISLANDS

ML1.2 2007/03/20 08:22:26 36.301 -115.300 0.0 14 km ( 9 mi) NNW of Las Vegas, NV
ML1.2 2007/03/20 06:21:24 37.273 -121.651 5.2 16 km ( 10 mi) N of Morgan Hill, CA

---

09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/20 11:42:21 34.041 -116.321 8.9 10 km ( 6 mi) S of Joshua Tree, CA

ML4.2 2007/03/20 11:33:13 17.352 -91.774 38.9 CHIAPAS, MEXICO

ML1.2 2007/03/20 10:39:22 35.779 -120.331 8.8 14 km ( 9 mi) NNE of Shandon, CA

ML4.4 2007/03/20 10:07:40 51.461 -176.389 18.9 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
M4.8 2007/03/20 09:45:10 30.671 -41.832 10.0 NORTHERN MID-ATLANTIC RIDGE

---

12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/20 14:53:10 33.499 -116.579 12.2 11 km ( 7 mi) SE of Anza, CA
ML1.6 2007/03/20 14:29:01 33.613 -116.810 4.1 14 km ( 9 mi) WNW of Anza, CA
ML1.1 2007/03/20 14:14:48 34.060 -116.358 6.3 8 km ( 5 mi) SSW of Joshua Tree, CA
ML1.3 2007/03/20 14:01:17 35.786 -120.322 3.6 15 km ( 10 mi) NNE of Shandon, CA
ML1.4 2007/03/20 13:42:09 34.053 -117.013 16.5 4 km ( 3 mi) NE of Yucaipa, CA

---

15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/20 17:59:46 -31.482 -66.532 118.7 LA RIOJA, ARGENTINA

ML1.2 2007/03/20 17:16:59 36.120 -115.282 16.0 3 km ( 2 mi) WNW of Spring Valley, NV

M4.4 2007/03/20 16:54:48 38.673 22.770 39.0 GREECE

ML1.7 2007/03/20 16:32:12 34.029 -117.519 11.8 3 km ( 2 mi) WNW of Glen Avon, CA

M5.3 2007/03/20 16:00:57 -0.753 127.545 10.0 HALMAHERA, INDONESIA

ML2.2 2007/03/20 15:25:54 33.228 -116.024 2.5 10 km ( 6 mi) SW of Salton City, CA

---

18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/20 20:07:54 53.424 153.923 462.8 SEA OF OKHOTSK

ML1.8 2007/03/20 20:05:04 34.588 -117.091 21.8 14 km ( 9 mi) NE of Apple Valley, CA
ML1.4 2007/03/20 19:51:46 36.032 -117.771 3.4 16 km ( 10 mi) E of Coso Junction, CA

M4.4 2007/03/20 18:45:34 36.507 71.120 206.4 HINDU KUSH REGION, AFGHANISTAN

ML1.1 2007/03/20 18:03:38 36.056 -120.655 0.9 23 km ( 14 mi) E of San Ardo, CA

---

21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/19 23:25:14 19.017 -65.351 25.3 79 km ( 49 mi) N of Culebra, PR

ML1.3 2007/03/20 23:11:32 38.435 -119.359 7.9 23 km ( 14 mi) NNW of Bridgeport, CA
ML2.2 2007/03/20 22:51:01 38.788 -122.745 3.4 5 km ( 3 mi) WNW of Anderson Springs, CA

ML3.6 2007/03/20 22:41:59 18.950 -67.724 43.0 83 km ( 52 mi) NW of Aguadilla, PR

ML1.7 2007/03/20 21:53:39 39.539 -120.382 10.0 19 km ( 12 mi) SW of Loyalton, CA
ML2.0 2007/03/20 21:23:24 39.705 -120.425 11.6 11 km ( 7 mi) E of Whitehawk, CA
ML2.2 2007/03/20 21:03:09 33.154 -115.667 3.0 3 km ( 2 mi) WSW of Obsidian Butte, CA

ML4.5 2007/03/20 21:00:04 53.917 -163.889 55.6 UNIMAK ISLAND REGION, ALASKA

---

March 21, 2007

24 Hour Peak Crustal Resonant Frequency =

00:00-03:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 02:32:06 34.014 -116.884 10.6 9 km ( 6 mi) N of Banning, CA
ML1.5 2007/03/21 02:28:26 37.788 -116.489 16.0 11 km ( 7 mi) S of Silverbow, NV
ML1.9 2007/03/21 02:19:51 39.702 -120.430 16.6 10 km ( 6 mi) ESE of Whitehawk, CA
ML1.6 2007/03/21 02:07:40 34.567 -118.734 16.0 12 km ( 7 mi) WNW of Castaic Lake dam, CA
*ML1.7 2007/03/21 01:54:50 34.176 -117.565 0.1 6 km ( 4 mi) NNE of Rancho Cucamonga, CA
ML1.5 2007/03/21 01:37:20 38.436 -119.364 8.6 23 km ( 14 mi) NNW of Bridgeport, CA
ML1.3 2007/03/21 01:34:36 34.576 -118.752 15.4 13 km ( 8 mi) WNW of Castaic Lake dam, CA
ML1.7 2007/03/21 01:01:29 32.517 -115.505 5.5 15 km ( 10 mi) SSW of Mexicali, Mexico
*ML1.5 2007/03/21 00:21:55 34.069 -117.258 5.7 2 km ( 2 mi) NNW of Loma Linda, CA

---

03:00-06:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 05:58:07 37.744 -122.144 4.1 4 km ( 2 mi) NNE of San Leandro, CA
ML1.8 2007/03/21 05:22:32 38.139 -117.605 16.0 24 km ( 15 mi) N of Weepah, NV

ML4.4 2007/03/21 05:19:27 49.066 -127.509 10.0 194 km (120 mi) WSW of Campbell River, Canada

ML1.6 2007/03/21 04:49:01 37.449 -118.841 8.5 19 km ( 12 mi) SW of Toms Place, CA
ML1.3 2007/03/21 04:40:26 33.682 -116.769 19.9 9 km ( 5 mi) SW of Idyllwild, CA

---

06:00-09:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 08:44:12 35.886 -117.686 9.1 29 km ( 18 mi) NNE of Inyokern, CA
ML1.5 2007/03/21 08:43:07 35.889 -117.687 9.5 29 km ( 18 mi) SE of Coso Junction, CA
ML1.2 2007/03/21 08:38:20 37.490 -118.805 9.7 14 km ( 8 mi) SW of Toms Place, CA
ML1.4 2007/03/21 08:00:35 33.492 -116.400 13.4 23 km ( 14 mi) SSW of La Quinta, CA
ML1.1 2007/03/21 07:30:18 37.236 -117.460 0.0 19 km ( 12 mi) WSW of Tokop, NV
ML1.8 2007/03/21 07:29:58 37.489 -118.805 9.8 14 km ( 8 mi) SW of Toms Place, CA
ML1.4 2007/03/21 07:08:41 37.698 -117.811 0.0 34 km ( 21 mi) SW of Weepah, NV
ML1.8 2007/03/21 07:08:15 38.423 -119.355 8.6 21 km ( 13 mi) NNW of Bridgeport, CA

M4.8 2007/03/21 06:59:16 -15.464 -173.520 43.3 TONGA

ML1.2 2007/03/21 06:45:41 38.794 -122.798 4.3 1 km ( 1 mi) SE of The Geysers, CA
ML1.2 2007/03/21 06:41:13 37.755 -122.137 1.9 5 km ( 3 mi) NNE of San Leandro, CA
ML2.7 2007/03/21 06:31:21 37.410 -121.758 7.8 8 km ( 5 mi) NE of Alum Rock, CA
ML1.7 2007/03/21 06:24:01 37.815 -121.556 10.5 10 km ( 6 mi) SE of Byron, CA
ML1.4 2007/03/21 06:04:43 37.764 -122.566 12.7 7 km ( 4 mi) WNW of San Francisco Zoo

---

09:00-12:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 10:53:33 33.998 -116.319 5.6 14 km ( 9 mi) S of Joshua Tree, CA
ML1.3 2007/03/21 10:48:54 33.923 -116.796 17.1 3 km ( 2 mi) WNW of Cabazon, CA
ML1.8 2007/03/21 10:45:35 34.006 -116.320 10.1 13 km ( 8 mi) S of Joshua Tree, CA
ML1.3 2007/03/21 09:59:48 34.259 -118.456 12.8 3 km ( 2 mi) SSW of Pacoima, CA
ML1.3 2007/03/21 09:35:11 34.370 -118.424 10.7 9 km ( 6 mi) SE of Santa Clarita, CA

---

12:00-15:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 14:55:42 34.133 -117.709 8.6 3 km ( 2 mi) NNE of Claremont, CA
ML1.1 2007/03/21 13:58:57 36.115 -117.845 4.3 12 km ( 8 mi) NE of Coso Junction, CA
ML2.5 2007/03/21 13:51:46 33.421 -116.391 14.8 19 km ( 12 mi) N of Borrego Springs, CA
ML1.3 2007/03/21 13:26:17 32.964 -115.869 8.4 24 km ( 15 mi) WSW of Westmorland, CA

---

15:00-18:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 17:35:20 38.837 -122.796 2.2 4 km ( 3 mi) NNE of The Geysers, CA
ML1.6 2007/03/21 17:27:26 38.836 -122.801 1.1 4 km ( 3 mi) N of The Geysers, CA
ML1.6 2007/03/21 16:37:23 37.299 -121.941 0.6 2 km ( 1 mi) SSW of Fruitdale, CA
ML1.6 2007/03/21 16:03:22 35.998 -117.325 0.0 26 km ( 16 mi) N of Trona, CA
ML1.2 2007/03/21 15:22:48 33.666 -116.753 17.2 9 km ( 6 mi) SSW of Idyllwild, CA
ML1.6 2007/03/21 15:15:11 37.877 -122.250 9.1 2 km ( 1 mi) ENE of Berkeley, CA

---

18:00-21:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 20:20:51 34.258 -118.513 13.6 2 km ( 1 mi) SW of Granada Hills, CA
ML1.8 2007/03/21 20:11:01 35.737 -121.133 7.1 12 km ( 7 mi) NNE of San Simeon, CA
ML1.6 2007/03/21 20:04:33 33.215 -116.733 5.5 4 km ( 2 mi) SE of Lake Henshaw, CA
ML2.4 2007/03/21 19:30:00 38.812 -122.819 2.2 2 km ( 1 mi) NW of The Geysers, CA
ML1.3 2007/03/21 19:15:46 33.335 -116.042 14.5 5 km ( 3 mi) SSW of Salton Sea Beach, CA

---

21:00-24:00 UTC

Return to Table of Contents Caption: Infrasonic Resonant 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 2007/03/21 23:26:23 35.048 -117.668 0.0 4 km ( 2 mi) N of Boron, CA
ML1.6 2007/03/21 23:23:50 35.580 -120.948 4.4 13 km ( 8 mi) ENE of Cambria, CA

M5.2 2007/03/21 23:07:47 15.069 -45.561 10.0 NORTHERN MID-ATLANTIC RIDGE

ML1.5 2007/03/21 23:06:45 36.070 -117.331 2.1 25 km ( 15 mi) WSW of Telescope Peak, CA
ML1.5 2007/03/21 22:56:24 33.856 -117.490 0.0 7 km ( 5 mi) ESE of Corona, CA
ML2.0 2007/03/21 22:44:19 39.437 -123.102 4.6 13 km ( 8 mi) WNW of Lake Pillsbury, CA
ML2.0 2007/03/21 21:40:59 35.632 -121.035 5.5 10 km ( 6 mi) NNE of Cambria, CA
ML1.4 2007/03/21 21:21:19 37.117 -121.527 7.1 7 km ( 5 mi) ENE of San Martin, CA
ML2.9 2007/03/21 21:18:00 37.118 -121.522 7.1 8 km ( 5 mi) ENE of San Martin, CA

---

---

Frank Condon

Independent Earthquake Precursor Research Consultant

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