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Earthquake
Precursor
Research



©GeoSeismic Labs 2007.

Supplement to Volume 7
Issue No. 2.0

GeoSeismic Labs Reports: February 2007

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.
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February 1-7, 2007

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

Graphic:(AE)Infrasonic Spectrogram

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

February 3, 2007: Peak Crustal Resonant Frequency = 0.57 Hz (-67.55 dBv)


Magnitude 3.3 - local magnitude (ML)
Time Saturday, February 3, 2007 at 5:05:26 AM (PST)
Saturday, February 3, 2007 at 13:05:26 (UTC)
Distance from Gilroy, CA - 11 km (7 miles) E (100 degrees)
San Martin, CA - 17 km (10 miles) SE (129 degrees)
Hollister, CA - 17 km (11 miles) NNW (343 degrees)
San Juan Bautista, CA - 18 km (11 miles) NNE (24 degrees)
San Jose City Hall, CA - 55 km (34 miles) SE (135 degrees)

Coordinates 36 deg. 59.6 min. N (36.994N), 121 deg. 27.3 min. W (121.454W)
Depth 8.9 km (5.5 miles)

Event ID# nc40193227

Graphic:(AE)Infrasonic Spectrogram

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

January 31, 2007: Peak Crustal Resonant Frequency = 0.56 Hz (-66.92 dBv)


Magnitude 2.6 - local magnitude (ML)
Time Wednesday, January 31, 2007 at 6:35:44 AM (PST)
Wednesday, January 31, 2007 at 14:35:44 (UTC)
Distance from Mojave, CA - 12 km (8 miles) W (271 degrees)
Tehachapi, CA - 17 km (10 miles) SE (138 degrees)
Rosamond, CA - 20 km (13 miles) NNW (327 degrees)
Lancaster, CA - 40 km (25 miles) NNW (337 degrees)
Los Angeles Civic Center, CA - 107 km (67 miles) N (356 degrees)

Coordinates 35 deg. 1.1 min. N (35.018N), 118 deg. 19.6 min. W (118.326W)
Depth 8 km (5.0 miles)

Event ID# ci10229153

Graphic:(AE)Infrasonic Spectrogram

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

Magnitude 1.4 - local magnitude (ML)
Time Tuesday, January 30, 2007 at 8:25:09 PM (PST)
Wednesday, January 31, 2007 at 4:25:09 (UTC)
Distance from Borrego Springs, CA - 17 km (11 miles) N (4 degrees)
Desert Shores, CA - 30 km (18 miles) W (270 degrees)
La Quinta, CA - 31 km (19 miles) S (191 degrees)
Palm Springs, CA - 49 km (31 miles) SSE (161 degrees)
San Diego, CA - 101 km (63 miles) NE (46 degrees)

Coordinates 33 deg. 24.2 min. N (33.404N), 116 deg. 21.5 min. W (116.359W)
Depth 16.6 km (10.3 miles)

Event ID# ci10229109

Graphic:(AE)Infrasonic Spectrogram

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

January 30, 2007: Peak Crustal Resonant Frequency = 0.58 Hz (-67.49 dBv)


Magnitude 3.3 - local magnitude (ML)
Time Tuesday, January 30, 2007 at 3:56:24 PM (PST)
Tuesday, January 30, 2007 at 23:56:24 (UTC)
Distance from Devore, CA - 9 km (6 miles) W (274 degrees)
Rancho Cucamonga, CA - 14 km (8 miles) NNE (31 degrees)
Mt. Baldy, CA - 15 km (9 miles) ESE (117 degrees)
Rialto, CA - 17 km (11 miles) NW (319 degrees)
Los Angeles Civic Center, CA - 71 km (44 miles) ENE (74 degrees)

Coordinates 34 deg. 13.7 min. N (34.228N), 117 deg. 30.2 min. W (117.504W)
Depth 2.8 km (1.7 miles)

Event ID# ci10229069

Graphic:(AE)Infrasonic Spectrogram

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

Magnitude 2.2 - local magnitude (ML)
Time Tuesday, January 30, 2007 at 5:56:19 AM (PST)
Tuesday, January 30, 2007 at 13:56:19 (UTC)
Distance from Devore, CA - 6 km (4 miles) WNW (284 degrees)
Rialto, CA - 15 km (10 miles) NNW (332 degrees)
Fontana, CA - 15 km (9 miles) N (359 degrees)
Crestline, CA - 16 km (10 miles) W (267 degrees)
Los Angeles Civic Center, CA - 75 km (47 miles) ENE (74 degrees)

Coordinates 34 deg. 14.0 min. N (34.234N), 117 deg. 27.7 min. W (117.461W)
Depth 8.5 km (5.3 miles)

Event ID# ci10229009


Magnitude 1.5 - local magnitude (ML)
Time Tuesday, January 30, 2007 at 4:44:23 AM (PST)
Tuesday, January 30, 2007 at 12:44:23 (UTC)
Distance from Devore, CA - 9 km (6 miles) W (264 degrees)
Rancho Cucamonga, CA - 12 km (8 miles) NE (37 degrees)
Mt. Baldy, CA - 16 km (10 miles) ESE (121 degrees)
Rialto, CA - 16 km (10 miles) NW (317 degrees)
Los Angeles Civic Center, CA - 71 km (44 miles) ENE (75 degrees)

Coordinates 34 deg. 12.8 min. N (34.213N), 117 deg. 29.9 min. W (117.499W)
Depth 5.3 km (3.3 miles)

Event ID# ci10228993

Graphic:(AE)Infrasonic Spectrogram

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

January 29, 2007: Peak Crustal Resonant Frequency = 0.56 Hz (-67.62 dBv)


San Jacinto Fault Zone:.
Within the San Jacinto Valley Segment.
Located north of the Anza Seismic Gap.
Last Major Earthquake was in 1918..
The Casa Loma Fault has a recurrence
interval of 98 years for major seismic events.

Magnitude 1.2 - local magnitude (ML)
Time Monday, January 29, 2007 at 6:24:06 AM (PST)
Monday, January 29, 2007 at 14:24:06 (UTC)
Distance from Valle Vista, CA - 9 km (6 miles) ESE (123 degrees)
Idyllwild, CA - 10 km (6 miles) WSW (247 degrees)
Hemet, CA - 16 km (10 miles) ESE (104 degrees)
Palm Springs, CA - 29 km (18 miles) WSW (244 degrees)
San Diego, CA - 108 km (67 miles) NNE (16 degrees)

Coordinates 33 deg. 42.5 min. N (33.708N), 116 deg. 49.0 min. W (116.817W)
Depth 18 km (11.2 miles)

Event ID# ci10228865


January 15, 2007: Peak Crustal Resonant Frequency = 0.58 Hz (-66.85 dBv)


San Jacinto Fault Zone:.
Within the San Jacinto Valley Segment.
Located north of the Anza Seismic Gap.
Last Major Earthquake was in 1918..
The Casa Loma Fault has a recurrence
interval of 98 years for major seismic events.

Magnitude 2.0 - local magnitude (ML)
Time Monday, January 15, 2007 at 5:32:42 PM (PST)
Tuesday, January 16, 2007 at 1:32:42 (UTC)
Distance from Valle Vista, CA - 8 km (5 miles) ESE (109 degrees)
Idyllwild, CA - 9 km (6 miles) WSW (258 degrees)
Hemet, CA - 16 km (10 miles) E (95 degrees)
Palm Springs, CA - 28 km (17 miles) WSW (248 degrees)
San Diego, CA - 110 km (68 miles) NNE (16 degrees)

Coordinates 33 deg. 43.7 min. N (33.728N), 116 deg. 48.7 min. W (116.811W)
Depth 10.6 km (6.6 miles)

Event ID# ci10226645


Magnitude 1.2 - local magnitude (ML)
Time Monday, January 15, 2007 at 5:22:28 PM (PST)
Tuesday, January 16, 2007 at 1:22:28 (UTC)
Distance from Valle Vista, CA - 7 km (4 miles) ESE (116 degrees)
Idyllwild, CA - 11 km (7 miles) WSW (258 degrees)
Hemet, CA - 14 km (9 miles) E (98 degrees)
Palm Springs, CA - 30 km (18 miles) WSW (248 degrees)
San Diego, CA - 109 km (68 miles) NNE (16 degrees)

Coordinates 33 deg. 43.5 min. N (33.725N), 116 deg. 49.8 min. W (116.829W)
Depth 17.8 km (11.1 miles)

Event ID# ci10226641

120 Day Peak Crustal Resonant Frequency Chart

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

Acoustic Emissions Catalog Table of Contents









Strong Global Earthquakes


Pacific Plate's Stress Center Related Earthquakes


North American Earthquakes of Special Interest


California, Nevada, and Baja Mexico Earthquakes


North American Micro Quakes of Special Interest







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.


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.


Useful Links & Other Related Sources of Information


Graphic:(AE)Unclamping Level Chart 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"

- Frank Condon
Graphic:(Map)Tectonic Plates Caption: Map of 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.

Graphic:Global 60 Day (AE)Unclamping Incident Chart

Graphic:Regional 60 Day (AE)Unclamping Incident Chart

Graphic:Global 60 Day (AE)Unclamping Incident Chart

Graphic:Global 60 Day (AE)Unclamping Incident Chart 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.


Graphic:Regional 60 Day (AE)Unclamping Incident Chart

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.



February 1, 2007

24 Hour Peak Crustal Resonant Frequency = 0.58 Hz (-67.20 dBv)

00:00-03:00 UTC

Return to Table of Contents
Graphic:(AE)Infrasonic Spectrogram 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


ML3.0 2007/02/01 02:50:33 20.427 -156.197 6.4 39 km ( 24 mi) SE of Wailea-Makena, HI

M4.8 2007/02/01 02:33:44 47.923 154.502 10.0 KURIL ISLANDS

ML1.2 2007/02/01 02:05:27 35.711 -120.993 6.8 10 km ( 7 mi) WSW of Lake Nacimiento, CA
ML1.4 2007/02/01 01:17:48 35.066 -118.313 6.7 12 km ( 8 mi) WNW of Mojave, CA
ML1.1 2007/02/01 01:13:15 36.027 -120.611 3.1 21 km ( 13 mi) NW of Parkfield, CA
ML1.5 2007/02/01 01:12:26 32.840 -116.224 7.0 24 km ( 15 mi) WNW of Ocotillo, CA
ML1.6 2007/02/01 00:51:50 35.074 -118.316 4.5 13 km ( 8 mi) WNW of Mojave, CA
ML1.7 2007/02/01 00:14:00 35.032 -117.698 0.0 4 km ( 2 mi) WNW of Boron, CA
ML1.9 2007/02/01 00:08:44 35.077 -118.312 3.6 13 km ( 8 mi) WNW of Mojave, CA
ML1.5 2007/02/01 00:01:58 32.973 -117.481 11.0 20 km ( 13 mi) W of Del Mar, CA


03:00 - 06:00 UTC

Return to Table of Contents
Graphic:(AE)Infrasonic Spectrogram 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


ML1.0 2007/02/01 05:24:19 33.433 -116.474 14.8 23 km ( 14 mi) NNW of Borrego Springs, CA
ML1.6 2007/02/01 05:13:45 34.121 -116.329 8.2 1 km ( 1 mi) SW of Joshua Tree, CA

ML3.4 2007/02/01 04:20:27 20.042 -155.951 12.1 15 km ( 9 mi) NW of Puako, HI


06:00-09:00 UTC

Return to Table of Contents
Graphic:(AE)Infrasonic Spectrogram 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 2007/02/01 08:22:11 38.791 -122.791 1.2 2 km ( 1 mi) ESE of The Geysers, CA
ML1.2 2007/02/01 08:04:50 35.724 -118.304 10.9 9 km ( 5 mi) WNW of Onyx, CA
ML1.4 2007/02/01 06:35:42 33.263 -116.061 6.8 10 km ( 6 mi) WSW of Salton City, CA


09:00-12:00 UTC

Return to Table of Contents
Graphic:(AE)Infrasonic Spectrogram 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 2007/02/01 11:51:29 38.928 -122.677 2.4 5 km ( 3 mi) SW of Clearlake, CA
ML1.6 2007/02/01 11:44:19 35.074 -118.309 4.7 13 km ( 8 mi) WNW of Mojave, CA
ML1.7 2007/02/01 11:38:00 35.061 -118.309 5.9 12 km ( 7 mi) WNW of Mojave, CA

ML4.6 2007/02/01 11:19:02 11.499 -88.198 45.0 OFF THE COAST OF CENTRAL AMERICA
ML4.6 2007/02/01 11:05:45 51.318 -179.646 35.0 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
ML5.7 2007/02/01 10:43:27 1.255 126.329 10.0 MOLUCCA SEA

ML1.0 2007/02/01 10:29:32 33.430 -116.470 13.3 22 km ( 14 mi) NNW of Borrego Springs, CA
ML1.6 2007/02/01 09:54:12 33.456 -116.629 14.6 12 km ( 7 mi) SSE of Anza, CA
ML1.9 2007/02/01 09:48:28 32.653 -115.858 6.5 16 km ( 10 mi) SE of Ocotillo, CA


12:00-15:00 UTC

Return to Table of Contents
Graphic:(AE)Infrasonic Spectrogram 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 2007/02/01 14:41:35 37.657 -118.922 6.2 5 km ( 3 mi) ENE of Mammoth Lakes, CA

M4.5 2007/02/01 14:34:23 36.613 71.285 229.6 HINDU KUSH REGION, AFGHANISTAN

ML1.6 2007/02/01 14:15:48 32.704 -115.486 16.9 3 km ( 2 mi) NNE of Calexico, CA

M5.2 2007/02/01 12:45:31 1.066 126.184 35.0 MOLUCCA SEA


15:00-18:00 UTC

Return to Table of Contents
Graphic:(AE)Infrasonic Spectrogram 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 2007/02/01 17:19:51 33.501 -116.771 12.1 11 km ( 7 mi) WSW of Anza, CA
ML1.7 2007/02/01 16:19:50 38.821 -122.783 3.5 3 km ( 2 mi) NE of The Geysers, CA
ML1.3 2007/02/01 15:29:01 35.924 -120.479 4.3 5 km ( 3 mi) WNW of Parkfield, CA


18:00-21:00 UTC

Return to Table of Contents
Graphic:(AE)Infrasonic Spectrogram 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 2007/02/01 20:53:53 37.506 -118.176 0.5 23 km ( 14 mi) NW of Deep Springs, CA


21:00-24:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/01 23:55:17 34.036 -117.264 16.3 2 km ( 1 mi) SW of Loma Linda, CA

ML3.4 2007/02/01 23:45:21 46.196 -122.191 0.7 1 km ( 1 mi) WSW of Mount St. Helens Volcano, WA

ML2.2 2007/02/01 21:55:15 39.951 -120.615 8.5 12 km ( 8 mi) NE of Cromberg, CA
ML2.2 2007/02/01 21:27:35 37.502 -118.177 4.0 22 km ( 14 mi) NW of Deep Springs, CA
ML1.3 2007/02/01 21:12:30 35.718 -121.044 5.2 15 km ( 9 mi) W of Lake Nacimiento, CA
ML1.3 2007/02/01 21:07:00 36.565 -121.158 3.9 4 km ( 2 mi) NNW of Pinnacles, CA


February 2, 2007

24 Hour Peak Crustal Resonant Frequency = 0.61 Hz (-67.08 dBv)

00:00-03:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/02 01:28:21 33.491 -116.586 10.4 11 km ( 7 mi) SE of Anza, CA
ML1.5 2007/02/02 01:16:02 38.819 -122.787 2.7 3 km ( 2 mi) NE of The Geysers, CA


03:00 - 06:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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

ML3.3 2007/02/02 05:54:12 18.014 -68.171 140.9 88 km ( 55 mi) SE of Higuey, Dominican Republic


ML1.5 2007/02/02 05:52:18 33.492 -116.580 11.6 11 km ( 7 mi) SE of Anza, CA
ML1.6 2007/02/02 04:57:24 32.691 -116.037 8.5 7 km ( 4 mi) SW of Ocotillo, CA


06:00-09:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


M4.7 2007/02/02 07:57:13 56.523 162.952 46.0 NEAR THE EAST COAST OF KAMCHATKA, RUSSIA

ML1.7 2007/02/02 07:04:24 36.173 -120.297 9.9 7 km ( 4 mi) ENE of Coalinga, CA
ML2.1 2007/02/02 06:45:24 32.714 -115.419 5.8 8 km ( 5 mi) NE of Mexicali, Mexico
ML2.6 2007/02/02 06:31:11 32.209 -115.872 2.2 60 km ( 37 mi) S of Ocotillo, CA


09:00-12:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/02 11:51:34 37.975 -118.655 10.5 39 km ( 24 mi) SSW of Qualeys Camp, NV
ML1.6 2007/02/02 11:41:57 33.649 -116.735 20.0 11 km ( 7 mi) S of Idyllwild, CA
ML1.5 2007/02/02 11:09:02 33.354 -116.306 15.8 13 km ( 8 mi) NNE of Borrego Springs, CA
ML1.0 2007/02/02 11:03:44 33.474 -116.586 14.3 12 km ( 8 mi) SE of Anza, CA
ML1.3 2007/02/02 11:00:30 37.908 -122.131 4.4 2 km ( 2 mi) NW of Lafayette, CA
ML2.8 2007/02/02 10:48:41 38.814 -122.797 3.6 2 km ( 1 mi) NNE of The Geysers, CA
ML1.8 2007/02/02 10:19:37 33.949 -115.734 6.2 26 km ( 16 mi) WNW of Eagle Mtn., CA
ML1.2 2007/02/02 09:55:50 34.197 -117.585 12.1 8 km ( 5 mi) N of Rancho Cucamonga, CA
ML2.1 2007/02/02 09:26:03 36.114 -117.898 2.0 9 km ( 6 mi) NNE of Coso Junction, CA


12:00-15:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/02 13:25:17 35.709 -121.151 6.1 8 km ( 5 mi) NNE of San Simeon, CA
ML1.7 2007/02/02 13:23:09 33.447 -116.636 13.9 12 km ( 8 mi) SSE of Anza, CA
ML1.0 2007/02/02 13:00:27 37.174 -114.777 0.0 28 km ( 17 mi) NNW of Hoya, NV
ML1.9 2007/02/02 12:50:18 35.882 -120.430 6.1 2 km ( 1 mi) S of Parkfield, CA
ML1.9 2007/02/02 12:16:41 36.077 -117.709 3.9 22 km ( 14 mi) E of Coso Junction, CA
ML1.3 2007/02/02 12:13:13 35.357 -118.651 8.4 14 km ( 9 mi) NNW of Keene, CA

M4.8 2007/02/02 12:06:34 39.553 20.706 35.1 GREECE


15:00-18:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/02 17:41:30 33.497 -116.577 12.3 11 km ( 7 mi) SE of Anza, CA

M4.9 2007/02/02 17:20:05 -7.312 129.573 75.3 KEPULAUAN BABAR, INDONESIA
M4.8 2007/02/02 16:57:29 53.150 158.547 123.2 NEAR THE EAST COAST OF KAMCHATKA, RUSSIA

ML1.5 2007/02/02 16:26:01 38.781 -117.154 0.0 42 km ( 26 mi) S of Washington, NV
ML2.1 2007/02/02 15:58:41 35.051 -118.921 16.1 5 km ( 3 mi) ESE of Mettler, CA

M4.8 2007/02/02 15:03:24 -31.767 179.282 636.9 KERMADEC ISLANDS REGION


18:00-21:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/02 20:19:24 36.966 -121.606 4.8 6 km ( 3 mi) SSW of Gilroy, CA
ML1.7 2007/02/02 18:59:49 35.910 -117.746 3.5 24 km ( 15 mi) SE of Coso Junction, CA
ML1.0 2007/02/02 18:45:07 33.658 -116.735 14.9 10 km ( 6 mi) SSW of Idyllwild, CA


21:00-24:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/02 23:49:16 33.328 -115.983 0.0 4 km ( 2 mi) NNW of Salton City, CA


ML3.2 2007/02/02 23:33:33 18.122 -67.989 103.8 82 km ( 51 mi) WSW of Rincon, PR


ML2.1 2007/02/02 23:23:12 36.083 -117.844 2.6 10 km ( 6 mi) ENE of Coso Junction, CA

M4.8 2007/02/02 23:20:22 46.144 153.043 10.0 KURIL ISLANDS

ML2.3 2007/02/02 23:15:02 33.708 -116.040 14.7 13 km ( 8 mi) ENE of Coachella, CA

ML4.6 2007/02/02 23:14:29 52.044 -175.558 106.9 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA

ML1.6 2007/02/02 23:00:20 34.252 -116.746 1.1 9 km ( 6 mi) E of Big Bear City, CA

M5.5 2007/02/02 22:32:19 37.712 91.811 10.0 NORTHERN QINGHAI, CHINA
M5.2 2007/02/02 22:02:49 39.020 71.346 47.9 TAJIKISTAN

ML1.8 2007/02/02 21:48:18 38.817 -122.796 2.6 2 km ( 1 mi) NNE of The Geysers, CA
ML2.7 2007/02/02 21:19:25 38.926 -122.514 0.0 8 km ( 5 mi) ENE of Lower Lake, CA
ML2.1 2007/02/02 21:12:00 36.591 -121.045 8.7 11 km ( 7 mi) NE of Pinnacles, CA


February 3, 2007

24 Hour Peak Crustal Resonant Frequency = 0.57 Hz (-67.55 dBv)

00:00-03:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/03 02:53:47 35.707 -121.154 6.4 8 km ( 5 mi) NNE of San Simeon, CA
ML1.3 2007/02/03 02:27:59 35.516 -120.767 0.0 7 km ( 4 mi) SW of Templeton, CA

ML4.3 2007/02/03 02:22:42 43.765 -127.707 10.0 276 km (171 mi) WNW of Bandon, OR

ML1.3 2007/02/03 01:33:39 34.413 -116.487 4.1 33 km ( 20 mi) N of Yucca Valley, CA
ML2.5 2007/02/03 00:41:04 38.817 -122.784 2.6 3 km ( 2 mi) NE of The Geysers, CA
ML1.3 2007/02/03 00:13:00 35.973 -120.200 9.7 9 km ( 6 mi) SW of Avenal, CA


03:00 - 06:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/03 05:35:01 40.072 -123.343 0.0 31 km ( 19 mi) NNW of Covelo, CA
ML2.1 2007/02/03 04:55:21 36.079 -117.858 4.0 9 km ( 6 mi) ENE of Coso Junction, CA
ML2.0 2007/02/03 04:34:44 33.255 -116.046 3.0 9 km ( 6 mi) WSW of Salton City, CA
ML1.8 2007/02/03 04:17:38 38.947 -123.136 0.0 19 km ( 12 mi) NNW of Cloverdale, CA
ML1.3 2007/02/03 03:36:34 33.996 -117.073 16.0 4 km ( 3 mi) SSW of Yucaipa, CA
ML1.5 2007/02/03 03:20:33 33.474 -116.548 10.5 15 km ( 9 mi) SE of Anza, CA


06:00-09:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/03 08:21:25 38.485 -122.715 5.1 4 km ( 3 mi) NNW of Santa Rosa, CA
ML1.7 2007/02/03 08:08:50 33.329 -116.810 4.4 6 km ( 4 mi) ESE of Palomar Observatory, CA
ML1.3 2007/02/03 07:35:23 32.985 -116.307 8.2 24 km ( 15 mi) SW of Ocotillo Wells, CA
ML1.5 2007/02/03 07:17:17 36.616 -121.037 3.4 13 km ( 8 mi) NE of Pinnacles, CA
ML1.4 2007/02/03 06:33:49 35.685 -121.081 5.0 11 km ( 7 mi) ENE of San Simeon, CA
ML1.0 2007/02/03 06:24:18 35.700 -121.011 6.9 12 km ( 8 mi) WSW of Lake Nacimiento, CA


09:00-12:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/03 11:47:03 36.130 -120.441 8.1 8 km ( 5 mi) W of Coalinga, CA
ML1.5 2007/02/03 11:35:28 36.800 -121.365 6.8 4 km ( 3 mi) WNW of Tres Pinos, CA
ML1.4 2007/02/03 11:20:18 34.690 -116.306 5.4 14 km ( 9 mi) WSW of Ludlow, CA

M5.0 2007/02/03 11:03:24 15.099 146.855 10.0 SAIPAN REGION, NORTHERN MARIANA ISLANDS

ML1.8 2007/02/03 09:47:15 38.822 -122.472 9.8 8 km ( 5 mi) ENE of Hidden Valley Lake, CA
ML1.9 2007/02/03 09:40:25 38.816 -122.479 7.8 7 km ( 4 mi) ENE of Hidden Valley Lake, CA
ML1.6 2007/02/03 09:01:21 33.725 -117.532 7.0 10 km ( 6 mi) ENE of Portola Hills, CA

M5.1 2007/02/03 09:00:16 -45.243 -72.115 10.0 AISEN, CHILE


12:00-15:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/03 14:35:43 33.769 -116.002 8.2 19 km ( 12 mi) ENE of Coachella, CA
ML1.0 2007/02/03 14:29:54 33.682 -116.771 15.9 9 km ( 5 mi) SW of Idyllwild, CA

M5.3 2007/02/03 13:43:22 35.848 22.534 47.2 CENTRAL MEDITERRANEAN SEA

ML1.3 2007/02/03 13:31:40 37.340 -122.210 10.3 4 km ( 2 mi) S of Portola Valley, CA

ML3.3 2007/02/03 13:05:26 36.994 -121.454 8.9 11 km ( 7 mi) E of Gilroy, CA

ML2.3 2007/02/03 13:05:01 38.768 -122.744 1.9 5 km ( 3 mi) W of Anderson Springs, CA
ML2.0 2007/02/03 12:56:50 41.020 -121.559 5.0 10 km ( 6 mi) W of Fall River Mills, CA
ML1.8 2007/02/03 12:25:56 37.592 -118.792 7.3 10 km ( 6 mi) WNW of Toms Place, CA


15:00-18:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


M4.3 2007/02/03 17:55:46 50.293 87.758 10.0 SOUTHWESTERN SIBERIA, RUSSIA

ML1.4 2007/02/03 17:14:34 35.676 -121.020 5.2 14 km ( 9 mi) WSW of Lake Nacimiento, CA

ML4.8 2007/02/03 16:11:57 52.721 -170.179 59.7 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

ML1.7 2007/02/03 15:46:20 33.328 -116.599 17.8 18 km ( 11 mi) ENE of Lake Henshaw, CA
ML1.3 2007/02/03 15:18:56 32.699 -116.050 10.7 7 km ( 4 mi) SW of Ocotillo, CA


18:00-21:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/03 20:49:43 36.090 -117.853 3.3 10 km ( 6 mi) ENE of Coso Junction, CA
ML1.5 2007/02/03 20:24:10 35.547 -120.777 8.1 6 km ( 4 mi) W of Templeton, CA
ML1.5 2007/02/03 20:00:16 35.091 -117.509 6.6 16 km ( 10 mi) ENE of Boron, CA
ML1.6 2007/02/03 19:41:17 34.209 -117.563 5.1 10 km ( 6 mi) N of Rancho Cucamonga, CA
ML1.5 2007/02/03 19:39:33 35.659 -121.053 4.3 12 km ( 7 mi) NNE of Cambria, CA

M5.2 2007/02/03 19:31:22 13.849 145.221 97.7 GUAM REGION

ML2.2 2007/02/03 19:31:50 36.170 -120.294 10.6 7 km ( 4 mi) ENE of Coalinga, CA
ML1.2 2007/02/03 19:09:55 33.897 -116.914 18.9 4 km ( 3 mi) SSW of Banning, CA
ML1.5 2007/02/03 18:53:07 33.526 -116.700 7.6 4 km ( 3 mi) SW of Anza, CA
ML1.5 2007/02/03 18:52:08 36.034 -120.608 0.9 22 km ( 14 mi) NW of Parkfield, CA
ML1.3 2007/02/03 18:23:26 37.480 -118.841 14.6 17 km ( 10 mi) WSW of Toms Place, CA
ML2.1 2007/02/03 18:18:35 37.483 -118.840 15.0 17 km ( 10 mi) WSW of Toms Place, CA


21:00-24:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/03 23:57:00 -9.149 -71.224 535.4 PERU-BRAZIL BORDER REGION

ML1.6 2007/02/03 22:59:20 38.824 -122.776 2.1 4 km ( 2 mi) NE of The Geysers, CA
ML1.3 2007/02/03 22:37:20 32.666 -116.051 9.5 10 km ( 6 mi) SSW of Ocotillo, CA
ML1.4 2007/02/03 21:18:29 32.578 -116.782 2.6 14 km ( 9 mi) W of Tecate, Mexico


February 4, 2007

24 Hour Peak Crustal Resonant Frequency = 0.56 Hz (-66.56 dBv)

00:00-03:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/04 02:21:34 32.852 -116.091 2.4 15 km ( 10 mi) NW of Ocotillo, CA
ML2.8 2007/02/04 01:54:29 40.464 -125.035 0.0 65 km ( 41 mi) WNW of Petrolia, CA
ML1.9 2007/02/04 01:34:48 33.407 -116.366 15.8 18 km ( 11 mi) N of Borrego Springs, CA
ML1.4 2007/02/04 01:30:36 34.031 -116.316 11.1 11 km ( 7 mi) S of Joshua Tree, CA

M5.3 2007/02/04 01:19:24 -0.549 127.516 30.0 HALMAHERA, INDONESIA

ML2.3 2007/02/04 01:14:30 38.396 -122.654 9.2 6 km ( 4 mi) NE of Rohnert Park, CA
ML1.5 2007/02/04 00:49:55 33.622 -116.394 9.0 11 km ( 7 mi) WSW of La Quinta, CA


03:00 - 06:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/04 05:44:25 34.072 -117.555 41.2 6 km ( 4 mi) SSE of Rancho Cucamonga, CA
ML1.5 2007/02/04 05:21:33 37.570 -118.826 5.1 13 km ( 8 mi) W of Toms Place, CA
ML1.2 2007/02/04 05:15:31 36.994 -121.451 8.4 12 km ( 7 mi) E of Gilroy, CA
ML1.6 2007/02/04 04:06:58 33.951 -118.319 11.2 2 km ( 1 mi) NW of Westmont, CA

ML4.9 2007/02/04 03:33:19 35.241 -35.973 10.0 NORTHERN MID-ATLANTIC RIDGE

ML1.3 2007/02/04 03:19:09 37.651 -119.032 2.6 5 km ( 3 mi) WNW of Mammoth Lakes, CA


06:00-09:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


ML2.4 2007/02/04 08:25:47 37.972 -118.660 8.2 39 km ( 24 mi) SSW of Qualeys Camp, NV
ML1.7 2007/02/04 08:10:28 33.717 -116.837 17.3 7 km ( 4 mi) SE of Valle Vista, CA
ML1.1 2007/02/04 08:10:02 33.707 -116.841 15.9 7 km ( 5 mi) SE of Valle Vista, CA
ML1.4 2007/02/04 07:00:10 37.074 -117.255 4.3 9 km ( 6 mi) ENE of Scottys Castle, CA
ML1.1 2007/02/04 06:52:00 33.467 -116.438 10.1 24 km ( 15 mi) ESE of Anza, CA


09:00-12:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/04 11:43:43 32.808 -116.956 8.1 1 km ( 1 mi) NNE of El Cajon, CA
ML1.3 2007/02/04 11:41:53 33.183 -116.908 24.5 12 km ( 7 mi) ESE of Valley Center, CA
ML2.3 2007/02/04 11:33:44 36.843 -121.578 7.1 4 km ( 2 mi) W of San Juan Bautista, CA
ML1.5 2007/02/04 10:56:33 37.654 -119.025 2.4 4 km ( 3 mi) WNW of Mammoth Lakes, CA

ML3.4 2007/02/04 10:24:32 19.590 -65.299 55.0 140 km ( 87 mi) NW of Settlement, British Virgin Islands

ML3.1 2007/02/04 10:21:10 37.969 -118.664 7.5 40 km ( 25 mi) SSW of Qualeys Camp, NV

ML1.2 2007/02/04 10:16:54 32.690 -116.044 9.7 7 km ( 4 mi) SW of Ocotillo, CA

M4.8 2007/02/04 10:13:54 -16.953 -69.042 174.1 LA PAZ, BOLIVIA

ML5.0 2007/02/04 09:46:12 51.652 -176.151 47.5 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA

ML1.3 2007/02/04 09:16:14 32.974 -116.290 9.8 24 km ( 15 mi) SW of Ocotillo Wells, CA


12:00-15:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


ML2.6 2007/02/04 14:47:39 35.862 -119.705 20.7 20 km ( 12 mi) W of Alpaugh, CA
ML1.3 2007/02/04 14:24:49 36.244 -120.799 6.4 22 km ( 14 mi) SSW of New Idria, CA
ML1.8 2007/02/04 14:19:12 38.793 -122.800 4.3 1 km ( 1 mi) SE of The Geysers, CA
ML1.2 2007/02/04 13:34:55 33.466 -116.593 12.8 12 km ( 8 mi) SE of Anza, CA


15:00-18:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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



18:00-21:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


M6.2 2007/02/04 20:56:59 19.480 -78.306 10.0 CUBA REGION

ML1.1 2007/02/04 20:47:19 37.365 -118.326 10.5 6 km ( 4 mi) E of Bishop, CA
ML1.1 2007/02/04 19:35:13 37.874 -122.259 9.1 1 km ( 1 mi) ENE of Berkeley, CA
ML2.8 2007/02/04 18:29:30 40.148 -123.823 20.9 3 km ( 2 mi) N of Redway, CA


21:00-24:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/04 23:20:54 33.844 -118.571 5.1 16 km ( 10 mi) WNW of Palos Verdes Point, CA
ML1.7 2007/02/04 23:18:53 33.645 -116.825 14.6 14 km ( 9 mi) SSE of Valle Vista, CA

M5.0 2007/02/04 22:58:58 47.327 153.081 58.6 KURIL ISLANDS

ML1.2 2007/02/04 22:33:25 33.649 -116.729 12.3 11 km ( 7 mi) S of Idyllwild, CA
ML1.5 2007/02/04 22:28:20 35.045 -117.656 2.8 3 km ( 2 mi) N of Boron, CA
ML1.1 2007/02/04 21:59:33 33.264 -116.281 5.9 9 km ( 5 mi) ENE of Borrego Springs, CA

M6.1 2007/02/04 21:17:53 -56.153 -122.990 10.0 SOUTHERN EAST PACIFIC RISE


February 5, 2007

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

00:00-03:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 01:48:35 32.701 -116.037 11.8 6 km ( 4 mi) SW of Ocotillo, CA
ML1.6 2007/02/05 01:39:19 32.697 -116.063 6.8 8 km ( 5 mi) SW of Ocotillo, CA
ML1.7 2007/02/05 01:26:53 39.348 -123.248 4.1 11 km ( 7 mi) SE of Willits, CA
ML1.7 2007/02/05 00:37:53 34.321 -116.838 3.5 7 km ( 4 mi) N of Big Bear City, CA
ML2.2 2007/02/05 00:33:39 32.693 -116.052 7.0 7 km ( 5 mi) SW of Ocotillo, CA
ML1.0 2007/02/05 00:08:51 33.107 -116.292 7.4 15 km ( 10 mi) WSW of Ocotillo Wells, CA


03:00 - 06:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 05:39:38 33.628 -116.836 13.1 15 km ( 9 mi) SSE of Valle Vista, CA
ML2.8 2007/02/05 05:36:45 40.427 -125.106 0.3 70 km ( 44 mi) W of Petrolia, CA
ML1.1 2007/02/05 04:20:25 35.798 -120.345 10.4 14 km ( 9 mi) SE of Parkfield, CA
ML1.3 2007/02/05 04:06:55 33.406 -116.365 16.3 18 km ( 11 mi) N of Borrego Springs, CA
ML1.1 2007/02/05 03:20:29 36.590 -121.102 11.3 7 km ( 5 mi) NNE of Pinnacles, CA

M4.7 2007/02/05 03:17:01 -19.824 -68.571 35.0 POTOSI, BOLIVIA


06:00-09:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 07:53:02 32.683 116.043 8.1 8 km ( 5 mi) SW of Ocotillo, CA
ML1.5 2007/02/05 07:46:19 38.781 122.839 5.4 3 km ( 2 mi) SW of The Geysers, CA
ML1.5 2007/02/05 07:05:00 36.027 120.599 3.7 21 km (13 mi) NW of Parkfield, CA
ML1.8 2007/02/05 07:04:50 39.391 122.947 7.2 2 km ( 1 mi) SSE of Lake Pillsbury, CA

M5.0 2007/02/05 06:42:58 49.408 155.507 10.0 KURIL ISLANDS

ML1.7 2007/02/05 06:25:06 37.969 118.651 10.7 39 km (24 mi) SSW of Qualeys Camp, NV


09:00-12:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 11:39:50 34.108 -117.964 14.9 1 km ( 0 mi) S of Irwindale, CA
ML2.6 2007/02/05 10:54:06 38.771 -122.718 2.5 2 km ( 1 mi) W of Anderson Springs, CA

ML5.2 2007/02/05 10:19:25 -20.707 -175.366 15.0 TONGA
ML5.6 2007/02/05 10:16:24 -20.657 -175.459 15.0 TONGA
ML5.7 2007/02/05 09:56:00 -20.617 -175.645 77.2 TONGA

ML1.4 2007/02/05 09:37:36 36.563 -121.034 7.2 10 km ( 6 mi) ENE of Pinnacles, CA
ML1.5 2007/02/05 09:21:29 33.154 -116.647 17.9 11 km ( 7 mi) NNW of Julian, CA
ML1.2 2007/02/05 09:20:09 33.474 -116.588 15.1 12 km ( 7 mi) SE of Anza, CA


12:00-15:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 13:54:18 34.258 -117.662 0.0 4 km ( 2 mi) SSW of Mt. Baldy, CA

M4.9 2007/02/05 13:35:19 46.762 155.997 10.0 EAST OF THE KURIL ISLANDS

ML1.4 2007/02/05 12:29:19 33.480 -116.478 13.1 20 km ( 12 mi) ESE of Anza, CA
ML1.5 2007/02/05 12:29:11 33.536 -116.460 12.6 20 km ( 12 mi) E of Anza, CA


15:00-18:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 15:47:42 37.962 -118.670 6.7 39 km ( 25 mi) E of Lee Vining, CA
ML2.5 2007/02/05 15:01:56 40.143 -123.845 20.8 3 km ( 2 mi) NNW of Redway, CA


18:00-21:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 20:58:05 33.254 -116.067 4.8 11 km ( 7 mi) WSW of Salton City, CA
ML1.5 2007/02/05 20:13:43 37.780 -122.590 10.1 9 km ( 6 mi) NW of San Francisco Zoo
ML2.8 2007/02/05 19:38:23 32.688 -116.066 3.8 9 km ( 5 mi) SW of Ocotillo, CA

M4.4 2007/02/05 18:29:02 41.235 72.167 46.4 KYRGYZSTAN

ML1.4 2007/02/05 18:10:32 38.789 -122.746 2.3 5 km ( 3 mi) WNW of Anderson Springs, CA


21:00-24:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/05 23:06:11 36.047 -120.630 0.1 24 km ( 15 mi) NW of Parkfield, CA
ML1.1 2007/02/05 22:56:53 33.688 -116.784 14.4 9 km ( 6 mi) SW of Idyllwild, CA
ML1.4 2007/02/05 22:50:07 34.489 -116.436 2.5 36 km ( 22 mi) SW of Ludlow, CA
ML1.8 2007/02/05 22:30:52 36.001 -120.562 3.0 16 km ( 10 mi) NW of Parkfield, CA
ML1.0 2007/02/05 22:11:07 33.679 -116.765 15.9 9 km ( 5 mi) SSW of Idyllwild, CA
ML1.4 2007/02/05 21:40:43 37.626 -118.846 6.7 12 km ( 7 mi) E of Mammoth Lakes, CA


February 6, 2007

Peak Crustal Resonant Frequency = 0.56 Hz (-66.72 dBv)

00:00-03:00 UTC


Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/06 02:25:29 36.802 -121.503 6.2 6 km ( 3 mi) SSE of San Juan Bautista, CA
ML1.5 2007/02/06 02:13:13 36.024 -117.888 3.1 6 km ( 4 mi) ESE of Coso Junction, CA
ML2.2 2007/02/06 01:24:03 37.975 -118.661 7.8 39 km ( 24 mi) SSW of Qualeys Camp, NV
ML1.8 2007/02/06 01:17:00 34.171 -117.669 7.0 7 km ( 4 mi) N of Upland, CA
ML1.4 2007/02/06 01:08:19 33.748 -116.034 3.5 15 km ( 9 mi) ENE of Coachella, CA
ML1.3 2007/02/06 00:40:23 33.265 -116.088 4.5 13 km ( 8 mi) WSW of Salton City, CA
ML2.2 2007/02/06 00:29:13 35.025 -117.692 1.8 3 km ( 2 mi) WNW of Boron, CA
ML2.1 2007/02/06 00:23:42 33.028 -116.284 8.3 19 km ( 12 mi) SW of Ocotillo Wells, CA

ML4.0 2007/02/06 00:23:20 51.431 -176.778 18.8 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA


03:00-06:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


M4.1 2007/02/06 03:29:23 14.574 -90.508 35.0 GUATEMALA

ML1.2 2007/02/06 03:19:07 37.482 -118.847 1.8 17 km ( 11 mi) WSW of Toms Place, CA


06:00-09:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/06 07:53:32 36.613 -121.218 2.1 11 km ( 7 mi) NW of Pinnacles, CA
ML1.0 2007/02/06 07:27:58 37.565 -118.826 5.3 13 km ( 8 mi) W of Toms Place, CA
ML1.3 2007/02/06 06:44:20 33.502 -116.577 12.0 11 km ( 7 mi) SE of Anza, CA
ML1.3 2007/02/06 06:30:24 32.876 -116.271 8.9 24 km ( 15 mi) ENE of Pine Valley, CA
ML2.0 2007/02/06 06:20:17 33.003 -117.773 1.3 43 km ( 27 mi) SW of Camp Pendleton South, CA


09:00-12:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


M4.9 2007/02/06 11:32:40 15.549 -91.696 221.3 GUATEMALA

ML1.4 2007/02/06 11:31:52 36.541 -121.099 1.3 4 km ( 3 mi) ENE of Pinnacles, CA

M4.6 2007/02/06 10:55:18 17.450 -100.478 10.0 GUERRERO, MEXICO

ML1.7 2007/02/06 10:53:25 38.817 -122.817 2.8 2 km ( 1 mi) NNW of The Geysers, CA
ML2.6 2007/02/06 10:32:22 38.815 -122.816 0.4 2 km ( 1 mi) NNW of The Geysers, CA
ML1.8 2007/02/06 10:29:07 37.974 -118.659 10.3 39 km ( 24 mi) SSW of Qualeys Camp, NV
ML1.8 2007/02/06 09:07:42 34.434 -116.487 4.5 35 km ( 22 mi) N of Yucca Valley, CA
ML1.8 2007/02/06 09:04:51 35.491 -118.388 13.3 17 km ( 11 mi) SSW of Weldon, CA


12:00-15:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/06 14:48:40 35.030 -116.965 5.8 18 km ( 11 mi) NNE of Barstow, CA

M4.6 2007/02/06 14:44:55 36.838 71.812 143.6 TAJIKISTAN

ML2.5 2007/02/06 14:43:12 32.124 -115.855 2.2 69 km ( 43 mi) SSW of Mexicali, Mexico
ML1.7 2007/02/06 13:57:09 34.031 -116.746 13.5 11 km ( 7 mi) SE of Mt. San Gorgonio, CA
ML1.4 2007/02/06 12:19:39 37.698 -122.093 0.7 1 km ( 1 mi) WSW of Castro Valley, CA


15:00-18:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/06 17:58:11 35.041 -118.307 1.1 11 km ( 7 mi) WNW of Mojave, CA
ML2.0 2007/02/06 16:39:14 39.723 -123.343 6.3 12 km ( 7 mi) SW of Covelo, CA
ML1.6 2007/02/06 15:59:57 33.917 -115.896 5.0 30 km ( 18 mi) SSE of Twentynine Palms, CA
ML1.9 2007/02/06 15:59:48 33.387 -116.162 0.0 11 km ( 7 mi) W of Desert Shores, CA
ML1.8 2007/02/06 15:30:33 33.916 -115.897 4.6 30 km ( 18 mi) SSE of Twentynine Palms, CA


18:00-21:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/06 20:29:26 32.631 -115.616 13.5 12 km ( 8 mi) WSW of Calexico, CA
ML1.5 2007/02/06 19:27:09 33.918 -115.898 6.4 29 km ( 18 mi) SSE of Twentynine Palms, CA
ML1.6 2007/02/06 18:37:36 32.950 -116.525 0.1 14 km ( 8 mi) N of Pine Valley, CA
ML1.0 2007/02/06 18:33:41 33.496 -116.576 11.7 11 km ( 7 mi) SE of Anza, CA


21:00-24:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


ML3.2 2007/02/06 23:34:23 18.594 -64.749 123.7 19 km ( 12 mi) NNW of Little Harbour, British Virgin Islands

ML1.0 2007/02/06 23:31:35 35.935 -120.485 5.7 6 km ( 4 mi) NW of Parkfield, CA
ML1.5 2007/02/06 23:19:07 35.995 -120.556 4.5 15 km ( 10 mi) NW of Parkfield, CA
ML1.2 2007/02/06 22:51:02 32.882 -116.246 12.8 27 km ( 17 mi) ENE of Pine Valley, CA
ML1.4 2007/02/06 22:40:27 36.576 -121.269 1.7 12 km ( 8 mi) WNW of Pinnacles, CA
ML1.2 2007/02/06 22:02:35 33.474 -116.592 15.1 12 km ( 7 mi) SE of Anza, CA


February 7, 2007

24 Hour Peak Crustal Resonant Frequency = 0.57 Hz (-67.16 dBv)

00:00-03:00 UTC


Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/07 02:39:20 38.468 -122.649 8.9 5 km ( 3 mi) ENE of Santa Rosa, CA

M4.8 2007/02/07 02:29:22 -21.024 -178.696 600.0 FIJI REGION

ML2.1 2007/02/07 02:06:21 38.466 -122.645 9.9 6 km ( 3 mi) ENE of Santa Rosa, CA
ML1.5 2007/02/07 00:32:21 35.023 -117.689 2.7 3 km ( 2 mi) WNW of Boron, CA


03:00-06:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/07 04:47:00 33.971 -116.716 17.0 8 km ( 5 mi) NE of Cabazon, CA
ML1.0 2007/02/07 04:21:34 36.571 -121.085 11.9 7 km ( 4 mi) NE of Pinnacles, CA
ML1.7 2007/02/07 04:01:48 38.708 -122.379 5.9 16 km ( 10 mi) NNE of Angwin, CA
ML1.3 2007/02/07 03:43:11 37.533 -118.892 2.2 14 km ( 9 mi) SSE of Mammoth Lakes, CA
ML1.7 2007/02/07 03:42:22 33.550 -116.724 3.2 5 km ( 3 mi) W of Anza, CA
ML2.4 2007/02/07 03:41:54 37.535 -118.896 3.1 13 km ( 8 mi) SSE of Mammoth Lakes, CA


06:00-09:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/07 08:50:50 38.467 -122.633 11.2 7 km ( 4 mi) ENE of Santa Rosa, CA
ML2.2 2007/02/07 08:37:30 38.462 -122.643 10.7 6 km ( 3 mi) ENE of Santa Rosa, CA
ML2.3 2007/02/07 08:35:35 31.995 -116.282 0.1 35 km ( 22 mi) ENE of Ensenada, Mexico
ML1.3 2007/02/07 08:18:31 33.474 -116.590 13.9 12 km ( 7 mi) SE of Anza, CA
ML1.5 2007/02/07 07:41:56 34.156 -117.825 16.3 4 km ( 2 mi) NE of Glendora, CA
ML2.0 2007/02/07 07:22:38 36.129 -121.671 11.9 15 km (10 mi) NW of Lopez Point, CA
ML2.1 2007/02/07 06:37:16 38.832 -122.755 0.4 3 km ( 2 mi) W of Cobb, CA
ML1.6 2007/02/07 06:23:43 38.469 -122.638 10.2 6 km ( 4 mi) ENE of Santa Rosa, CA


09:00-12:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/07 11:52:51 32.684 -116.038 8.4 7 km ( 4 mi) SSW of Ocotillo, CA
ML1.3 2007/02/07 11:33:36 36.687 -121.051 4.9 19 km ( 12 mi) NNE of Pinnacles, CA
ML1.3 2007/02/07 11:18:37 38.393 -122.612 7.3 8 km ( 5 mi) WNW of Glen Ellen, CA
ML1.7 2007/02/07 11:16:55 35.011 -119.017 4.4 7 km ( 4 mi) W of Wheeler Ridge, CA
ML2.2 2007/02/07 10:43:23 35.913 -117.740 9.0 24 km ( 15 mi) SE of Coso Junction, CA

ML3.1 2007/02/07 10:35:58 44.039 -102.579 5.0 11 km ( 7 mi) WSW of Wasta, SD


12:00-15:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/07 13:28:11 33.007 -115.566 4.1 4 km ( 3 mi) NW of Brawley, CA
ML1.4 2007/02/07 12:22:55 34.835 -119.212 10.8 5 km ( 3 mi) WSW of Pine Mountain Club, CA


15:00-18:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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


M4.5 2007/02/07 16:48:37 -16.747 -177.815 400.0 FIJI REGION

ML1.3 2007/02/07 16:24:06 34.008 -116.325 10.3 13 km ( 8 mi) S of Joshua Tree, CA


18:00-21:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/07 20:13:46 33.391 -116.789 0.9 8 km ( 5 mi) ENE of Palomar Observatory, CA

M5.7 2007/02/07 18:54:55 -17.732 -70.909 19.8 SOUTHERN PERU

ML1.4 2007/02/07 18:25:27 36.076 -117.875 2.8 7 km ( 5 mi) ENE of Coso Junction, CA


21:00-24:00 UTC

Return to Table of Contents Graphic:(AE)Infrasonic Spectrogram 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 2007/02/07 23:19:42 38.131 -119.129 1.9 14 km ( 8 mi) SW of Bodie, CA
ML1.8 2007/02/07 23:16:05 38.822 -122.793 4.9 3 km ( 2 mi) NNE of The Geysers, CA
ML1.5 2007/02/07 23:13:22 38.829 -122.784 1.9 4 km ( 2 mi) NNE of The Geysers, CA
ML2.0 2007/02/07 22:33:44 37.424 -118.665 16.7 6 km ( 4 mi) W of Round Valley, CA
ML1.7 2007/02/07 22:10:05 34.321 -116.831 3.9 7 km ( 4 mi) N of Big Bear City, CA



Frank Condon

Independent Earthquake Precursor Research Consultant

This information is provided as a public service by GeoSeismic Labs of California, a State Registered "Not for Profit" Public Benefit Corporation Since 2001.

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