At 3:56PM this afternoon, we had a M3.3 earthquake, located 9 km (6 miles) W of Devore, CA. We have felt reports throughout the Inland Empire, with some as far away as Redlands. There was also a M2.3 earthquake two minutes earlier, located in the Hawthorne area of the South Bay. This completely different event may have been felt in the epicentral area by a few people, as a few felt reports from Gardena and Los Angeles showed. Some felt reports from this small microquake may have been attributed to the Community Internet Intensity Map (CIIM) for the M3.3 Devore event. If you felt either event, you may differentiate the events by how the earthquake felt. If you live in the South Bay, for example, and you felt a small, quick jolt, this may be the M2.3 microquake. If you are in the southwestern portion of Los Angeles, and felt a slight rolling motion that lasted longer than one half-
second, you may have felt the M3.3 event. Either event would be difficult to feel in the South Bay area. You may fill out a CIIM survey to update the intensity map by navigating here: http://pasadena.wr.usgs.gov/shake/STORE/X10229069/ciim_display.html
January 30, 2007
M3.3 Earthquake – 9 km (6 miles) W of Devore, CA
January 29, 2007
small quake near Lakeview Terrace
A ML2.7 earthquake was felt early this afteroon in the northeastern regions of San Fernando Valley. The time was 1:10 pm & the epicenter was located 2 miles south-southwest of Lakeview Terrace. Some of the “felt reports” have come from the Sunland, North Hollywood & Pacoima areas.
January 25, 2007
Weekly Seismicity Report – January 25th, 2007
Southern California Earthquakes in the Past Week
Seismological Laboratory
Sue HoughU. S. Geological Survey
California Institute of Technology
January 25, 2007
This report covers the seven day period ending 16:00 on January 25, 2007. During this period we detected and analyzed 189 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location ------------------------------------------------------------------------------------------- 10227277 2.3 2007/01/18 18:47:35 35 35.6 N 120 45.3 W 6.2 8 km ( 5 mi) SW of Paso Robles, CA 10227297 2.2 2007/01/18 21:54:53 32 42.9 N 115 23.7 W 14.7 11 km ( 7 mi) ENE of Calexico, CA 10227301 2.2 2007/01/18 22:05:26 32 6.5 N 116 25.2 W 5.8 77 km (48 mi) SE of San Ysidro, CA 10227325 2.0 2007/01/19 01:08:27 32 58.9 N 116 18.4 W 5.2 24 km (15 mi) SW of Ocotillo Wells, CA 12269539 2.2 2007/01/19 01:08:30 32 59.2 N 116 18.0 W 7.8 23 km (15 mi) SW of Ocotillo Wells, CA 12269543 2.0 2007/01/19 01:08:34 32 59.7 N 116 18.7 W 6.9 24 km (15 mi) SW of Ocotillo Wells, CA 10227329 2.1 2007/01/19 01:12:12 32 59.0 N 116 18.5 W 5.5 24 km (15 mi) SW of Ocotillo Wells, CA 10227337 2.1 2007/01/19 01:56:02 32 59.2 N 116 18.4 W 5.4 24 km (15 mi) SW of Ocotillo Wells, CA 10227365 2.8 2007/01/19 09:34:27 36 17.0 N 115 25.8 W 16.0 83 km (51 mi) ENE of Shoshone, CA 10227393 3.2 2007/01/19 11:17:08 32 59.1 N 116 18.8 W 4.2 24 km (15 mi) SW of Ocotillo Wells, CA Felt in Ocotillo Wells and surrounding area 10227409 2.8 2007/01/19 11:25:19 32 59.0 N 116 19.3 W 5.1 25 km (16 mi) SW of Ocotillo Wells, CA 10227481 2.1 2007/01/19 18:04:26 33 57.5 N 116 38.7 W 6.9 11 km ( 7 mi) SSW of Morongo Valley, CA 10227497 2.4 2007/01/19 21:51:15 32 9.2 N 115 52.6 W 6.0 66 km (41 mi) S of Ocotillo, CA 10227525 2.2 2007/01/20 00:13:19 33 51.9 N 116 9.2 W 5.6 18 km (11 mi) NNE of Indio, CA 10227629 2.3 2007/01/20 17:34:39 33 58.2 N 116 42.9 W 17.4 8 km ( 5 mi) NE of Cabazon, CA 10227669 2.2 2007/01/21 01:00:29 35 57.9 N 117 39.7 W 2.9 27 km (17 mi) ESE of Coso Junction, CA 10227713 2.2 2007/01/21 09:50:24 32 14.8 N 116 49.0 W 6.0 40 km (25 mi) SSE of San Ysidro, CA 10227725 2.0 2007/01/21 11:40:43 33 56.4 N 116 18.9 W 10.2 17 km (11 mi) E of Desert Hot Springs, CA 10227761 2.7 2007/01/21 15:21:57 34 14.9 N 118 57.1 W 3.4 8 km ( 5 mi) WSW of Moorpark, CA Felt in Moorpark, Camarillo, and Thousand Oaks 10227889 2.6 2007/01/22 15:33:26 32 10.8 N 115 51.3 W 7.1 63 km (39 mi) SSE of Ocotillo, CA 10227905 2.7 2007/01/22 16:19:12 33 8.5 N 115 40.3 W 1.9 5 km ( 3 mi) SW of Obsidian Butte, CA 10227957 2.4 2007/01/23 00:46:10 33 57.8 N 118 43.8 W 3.6 8 km ( 5 mi) ESE of Pt. Dume, CA 10227981 2.1 2007/01/23 06:36:04 33 29.0 N 116 58.6 W 15.8 18 km (11 mi) NW of Palomar Observatory, CA 10228133 3.0 2007/01/23 23:28:15 32 30.3 N 115 14.1 W 10.0 30 km (19 mi) SE of Calexico, CA 10228201 2.3 2007/01/24 08:47:40 34 14.9 N 118 42.0 W 13.3 4 km ( 2 mi) SSE of Simi Valley, CA 10228333 2.2 2007/01/25 10:36:45 32 41.3 N 116 3.3 W 9.1 8 km ( 5 mi) SW of Ocotillo, CA 10228353 2.2 2007/01/25 13:28:46 35 8.3 N 117 18.2 W 5.5 35 km (22 mi) ENE of Boron, CA
January 19, 2007
2006 Fourth Quarter Seismicity Report
Southern California events processed & distributed:
During the reporting period (October 1 through December 31, 2006), we
recorded & processed (K. Hutton, J. Franck, A. Guarino, N. Scheckel):
2,609 earthquakes (inside & just outside of our region) & quarry
blasts, of which
411 were magnitude 2.0 or larger, of which
45 were magnitude 3.0 or larger, of which
6 were magnitude 4.0 or larger.
The magnitude 4+ quakes which were inside our coverage area are listed
below:
Mag. Local date Local time Lat. Long. Depth Descriptive location
4.4 2006/11/03 07:56:43 32 40.6 N 116 2.9 W 13.7 5 mi SW of Ocotillo
4.0 2006/11/27 20:06:40 35 38.1 N 120 45.1 W 4.2 4 mi W of Paso
Robles
4.0 2006/11/29 13:10:55 32 49.2 N 115 58.3 W 3.9 6 mi NNE of Ocotillo
4.3 2006/12/08 14:46:10 31 47.7 N 116 18.7 W 6.0 68 mi SE of San
Ysidro
4.0 2006/12/11 05:21:08 31 49.2 N 116 21.3 W 6.0 65 mi SE of San
Ysidro
4.0 2006/12/23 19:43:38 33 42.5 N 116 3.0 W 13.2 10 mi E of Indio
Like the that of the last quarter, the seismic activity this quarter was
unusually quiet.
Most of the M4+ earthquakes occurred at the southern end of the state & in
northern
Baja, Mexico.
Two, the largest at M4.4 & one of the M4.0’s, were part of on-going swarms
near the desert
town of Ocotillo. These swarms included over 200 events during October &
November. The
ML4.4 on November 3 was felt in the San Diego & Temecula areas, as well as
Imperial
Valley. The peak intensity was MMI IV in Ocotillo itself. The M4.0 on
November 29 was
reported felt by only a few people.
The M4.0 on December 23, in the Mecca Hills just east of the San Andreas
fault, was felt
in the Coachella & Imperial Valleys, as far north as Twentynine Palms. Peak
intensity
was MMI IV in part of Coachella Valley nearest the epicenter.
Other earthquakes that were felt by the public include:
M3.5 near Mt. Baldy on Nov. 4, felt in Inland Empire & Victorville areas.
M2.5 near Anaheim on Nov. 24, felt in northern Orange County.
M2.7 offshore of Palos Verdes Point on Dec. 4, felt in South Bay
communities.
M3.2 and M3.0 Ocotillo Wells Quakes
There were two significant events this morning, a M3.0 and M3.2, located southwest of Ocotillo Wells. We have no felt reports for these events, but it is possible they were felt in Ocotillo Wells and surrounding area. The two events that occurred were:
M3.0 2007/01/19 11:25:19 32.984N 116.325W 5.6 25 km (16 mi) SW of Ocotillo Wells, CA
M3.2 2007/01/19 11:17:08 32.983N 116.320W 5.8 25 km (16 mi) SW of Ocotillo Wells, CA
January 18, 2007
Weekly Seismicity Report – January 18, 2007
Southern California Earthquakes in the Past Week
Seismological Laboratory
Sue HoughU. S. Geological Survey
California Institute of Technology
January 18, 2007
This report covers the seven day period ending 16:00 on January 18, 2007. During this period we detected and analyzed 212 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location ------------------------------------------------------------------------------------------- 10226129 2.1 2007/01/11 20:49:04 35 29.1 N 118 21.0 W 2.2 20 km (12 mi) SSE of town of Lake Isabella, CA 10226213 2.3 2007/01/12 14:32:52 35 54.2 N 117 45.6 W 6.5 23 km (14 mi) SE of Coso Junction, CA 10226261 2.1 2007/01/12 22:39:57 34 3.3 N 117 16.5 W 19.7 2 km ( 1 mi) WNW of Loma Linda, CA 10226341 2.2 2007/01/13 12:57:40 33 37.5 N 117 57.1 W 15.6 2 km ( 1 mi) WNW of Newport Beach, CA 10226345 2.2 2007/01/13 13:01:05 33 36.8 N 117 59.3 W 13.9 5 km ( 3 mi) W of Newport Beach, CA 10226349 2.1 2007/01/13 13:31:32 32 39.0 N 116 51.0 W 13.6 15 km ( 9 mi) ENE of Chula Vista, CA 10226369 2.9 2007/01/13 15:57:35 32 59.1 N 115 34.8 W 12.9 5 km ( 3 mi) WNW of Brawley, CA Felt in Brawley and surrounding area 10226397 2.2 2007/01/13 17:02:23 32 59.8 N 115 35.5 W 12.2 5 km ( 3 mi) SSE of Westmorland, CA 10226425 2.4 2007/01/14 01:21:22 33 55.5 N 119 40.6 W 11.3 19 km (12 mi) SW of Santa Cruz Is. 10226517 2.1 2007/01/14 20:01:07 33 6.8 N 116 55.1 W 13.8 10 km ( 6 mi) NNW of Ramona, CA 10226533 3.0 2007/01/14 23:00:03 33 42.4 N 116 2.8 W 13.7 15 km (10 mi) N of Mecca, CA Felt in Mecca 10226545 2.1 2007/01/15 01:07:12 36 9.0 N 118 3.8 W 0.0 16 km (10 mi) SSW of Olancha, CA 10226597 2.3 2007/01/15 10:18:47 32 59.1 N 116 18.4 W 5.4 24 km (15 mi) SW of Ocotillo Wells, CA 10226601 2.2 2007/01/15 10:19:29 32 59.2 N 116 18.7 W 5.3 24 km (15 mi) SW of Ocotillo Wells, CA 10226625 2.6 2007/01/15 13:22:04 33 42.3 N 116 2.6 W 15.3 15 km ( 9 mi) NNE of Mecca, CA 10226645 2.0 2007/01/15 17:32:42 33 43.7 N 116 48.7 W 10.6 9 km ( 6 mi) WSW of Idyllwild, CA 10226757 2.1 2007/01/16 11:57:58 34 26.8 N 119 1.3 W 16.4 11 km ( 7 mi) WNW of Fillmore, CA 10226877 3.7 2007/01/17 08:07:47 32 58.9 N 116 19.0 W 4.1 25 km (15 mi) SW of Ocotillo Wells, CA Felt widely throughout San Diego County. To view the ShakeMap for this event, click here. 10226881 2.2 2007/01/17 08:10:17 32 59.3 N 116 18.6 W 5.0 24 km (15 mi) SW of Ocotillo Wells, CA 10226909 2.9 2007/01/17 08:37:29 35 4.6 N 118 18.4 W 2.6 13 km ( 8 mi) WNW of Mojave, CA Felt in Mojave 10226913 2.6 2007/01/17 08:39:59 35 4.8 N 118 18.5 W 3.3 13 km ( 8 mi) WNW of Mojave, CA 10226929 2.2 2007/01/17 09:12:15 32 59.1 N 116 18.3 W 5.3 24 km (15 mi) SW of Ocotillo Wells, CA 10226965 2.9 2007/01/17 09:44:41 32 59.1 N 116 19.0 W 4.7 25 km (15 mi) SW of Ocotillo Wells, CA Felt in Ocotillo Wells and surrounding area 10226989 2.0 2007/01/17 11:23:37 32 59.2 N 116 18.6 W 5.3 24 km (15 mi) SW of Ocotillo Wells, CA 10227009 2.0 2007/01/17 12:01:59 35 4.5 N 118 18.7 W 2.5 13 km ( 8 mi) WNW of Mojave, CA 10227033 2.9 2007/01/17 14:36:44 32 59.1 N 116 18.9 W 5.8 25 km (15 mi) SW of Ocotillo Wells, CA Felt in Ocotillo Wells and surrounding area 10227057 2.5 2007/01/17 15:20:53 32 59.1 N 116 18.7 W 5.2 24 km (15 mi) SW of Ocotillo Wells, CA 10227185 2.4 2007/01/18 09:08:15 34 0.1 N 116 48.9 W 14.7 9 km ( 6 mi) NNW of Cabazon, CA 10227189 2.5 2007/01/18 09:23:13 33 47.5 N 119 27.6 W 6.0 27 km (17 mi) S of Santa Cruz Is. 10227205 2.2 2007/01/18 11:15:51 32 42.9 N 116 3.3 W 9.1 6 km ( 4 mi) WSW of Ocotillo, CA 10227209 3.1 2007/01/18 12:04:20 32 59.0 N 116 18.4 W 4.9 24 km (15 mi) SW of Ocotillo Wells, CA Felt in Ocotillo Wells and surrounding area
January 11, 2007
Southern California Earthquakes in the Past Week
Seismological Laboratory
Sue Hough U. S. Geological Survey
California Institute of Technology
January 11, 2007
This report covers the seven day period ending 16:00 on January 11, 2007. During this period we detected and analyzed 151 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location ------------------------------------------------------------------------------------------- 10225333 2.3 2007/01/05 08:06:36 33 13.4 N 115 38.3 W 4.9 6 km ( 4 mi) N of Obsidian Butte, CA 10225341 2.2 2007/01/05 08:21:58 33 38.9 N 117 1.1 W 15.9 12 km ( 7 mi) SSW of Hemet, CA 10225393 2.6 2007/01/05 22:42:05 33 5.2 N 115 35.7 W 14.3 6 km ( 4 mi) NNE of Westmorland, CA 10225429 2.2 2007/01/06 06:16:45 34 51.0 N 119 14.1 W 11.1 27 km (17 mi) W of Frazier Park, CA 10225441 2.2 2007/01/06 07:51:20 32 10.8 N 115 21.0 W 6.8 56 km (35 mi) SSE of Calexico, CA 10225449 3.0 2007/01/06 08:18:01 32 6.2 N 115 51.3 W 7.7 71 km (44 mi) SSW of Calexico, CA 10225497 2.2 2007/01/06 20:32:42 33 25.9 N 116 52.9 W 2.9 9 km ( 5 mi) N of Palomar Observatory, CA 10225509 2.3 2007/01/06 22:23:20 32 8.2 N 115 21.3 W 5.6 61 km (38 mi) SSE of Calexico, CA 10225513 2.1 2007/01/07 01:12:52 33 57.6 N 118 43.1 W 4.7 9 km ( 5 mi) SSW of Malibu, CA 10225517 2.8 2007/01/07 03:16:13 33 54.0 N 116 57.6 W 10.5 4 km ( 2 mi) SSE of Beaumont, CA Likely felt in Beaumont, Banning, and Cabazon 10225521 2.2 2007/01/07 06:21:16 32 37.8 N 115 38.2 W 15.1 14 km ( 9 mi) WSW of Calexico, CA 10225529 2.9 2007/01/07 07:00:47 32 38.0 N 115 37.7 W 15.3 13 km ( 8 mi) WSW of Calexico, CA 10225585 2.8 2007/01/07 19:05:34 33 37.5 N 116 45.5 W 19.2 11 km ( 7 mi) NW of Anza, CA Likely felt in Anza 10225601 2.4 2007/01/07 21:29:37 32 2.6 N 115 52.1 W 6.0 78 km (48 mi) SSW of Calexico, CA 10225657 2.7 2007/01/08 12:06:06 32 39.1 N 115 37.8 W 14.5 13 km ( 8 mi) W of Calexico, CA 10225733 2.6 2007/01/08 20:27:50 34 34.5 N 116 15.5 W 4.5 49 km (30 mi) N of Joshua Tree, CA 10225761 2.1 2007/01/09 02:02:24 34 11.4 N 117 32.8 W 5.0 10 km ( 6 mi) NNE of Rancho Cucamonga, CA 10225769 2.1 2007/01/09 04:02:01 32 42.5 N 116 2.5 W 4.3 5 km ( 3 mi) WSW of Ocotillo, CA 10225781 3.1 2007/01/09 06:01:55 32 40.9 N 116 2.9 W 9.0 8 km ( 5 mi) SW of Ocotillo, CA 10225825 2.3 2007/01/09 14:08:28 34 20.4 N 116 38.4 W 4.8 21 km (13 mi) ENE of Big Bear City, CA 12266043 3.1 2007/01/09 14:33:41 36 51.6 N 121 18.9 W 27.4 8 km ( 5 mi) E of Hollister, CA 10225869 2.7 2007/01/10 00:18:55 33 20.3 N 116 13.6 W 4.4 16 km (10 mi) NE of Borrego Springs, CA 10225897 2.7 2007/01/10 06:16:59 32 41.9 N 116 2.4 W 5.0 6 km ( 4 mi) SW of Ocotillo, CA 10225901 2.0 2007/01/10 07:04:43 33 40.2 N 117 47.4 W 7.1 3 km ( 2 mi) E of Irvine, CA 10225949 2.6 2007/01/10 15:27:38 32 41.0 N 116 2.8 W 8.6 8 km ( 5 mi) SW of Ocotillo, CA 10225985 2.9 2007/01/10 20:22:02 34 2.4 N 117 32.5 W 9.6 9 km ( 5 mi) SSE of Rancho Cucamonga, CA Felt widely throughout the Inland Empire and San Gabriel Valley. If you felt this quake, and would like to report it, click here. 10226013 2.7 2007/01/11 04:52:42 36 16.3 N 117 53.4 W 2.5 10 km ( 6 mi) E of Olancha, CA
Small quake in Inland Empire
A ML2.9 quake occurred last night at 8:22 pm, located about 5 miles east of Ontario, near Glen Avon. It was reported felt by residents of Norco, Corona, Rancho Cucumonga & other communities in that area.
January 4, 2007
Weekly Seismicity Report – January 4th, 2007
Southern California Earthquakes in the Past Week
Seismological Laboratory
Sue HoughU. S. Geological Survey
California Institute of Technology
January 04, 2007
This report covers the seven day period ending 16:00 on January 04, 2007. During this period we detected and analyzed 175 earthquakes.
The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.
Mag. PST Date PST Time Lat. Long. Depth Descriptive location ------------------------------------------------------------------------------------------- 12265915 2.6 2006/12/28 16:13:51 33 10.2 N 115 39.7 W 1.4 2 km ( 1 mi) W of Obsidian Butte, CA 10224425 2.6 2006/12/29 01:35:38 33 50.7 N 117 50.7 W 11.6 6 km ( 4 mi) SSW of Yorba Linda, CA Likely Felt in Yorba Linda 10224433 2.0 2006/12/29 02:31:43 32 43.3 N 116 2.9 W 8.9 5 km ( 3 mi) WSW of Ocotillo, CA 10224557 2.1 2006/12/30 08:51:41 35 43.2 N 118 15.9 W 13.1 20 km (13 mi) ENE of town of Lake Isabella, CA 10224601 3.2 2006/12/30 16:50:51 36 17.8 N 118 19.7 W 1.2 29 km (18 mi) W of Olancha, CA Felt in Olancha 10224605 2.1 2006/12/30 17:19:45 36 17.1 N 118 19.5 W 3.5 29 km (18 mi) W of Olancha, CA 10224617 2.5 2006/12/30 18:34:35 36 17.2 N 118 20.2 W 4.2 30 km (18 mi) W of Olancha, CA 10224669 2.1 2006/12/31 00:49:46 32 32.5 N 115 18.5 W 6.0 22 km (14 mi) SE of Calexico, CA 10224741 2.4 2006/12/31 08:18:31 34 15.6 N 119 35.0 W 11.1 16 km (10 mi) SSW of Carpinteria, CA 10224881 2.0 2007/01/02 04:15:25 34 34.6 N 116 16.1 W 5.0 49 km (30 mi) N of Joshua Tree, CA 10224885 2.5 2007/01/02 05:06:27 32 25.7 N 115 28.4 W 7.0 27 km (17 mi) S of Calexico, CA 10225029 2.0 2007/01/02 19:04:59 36 18.1 N 118 19.4 W 1.2 29 km (18 mi) W of Olancha, CA 10225157 2.2 2007/01/03 21:23:54 33 17.7 N 116 45.9 W 10.2 6 km ( 4 mi) N of Lake Henshaw, CA 10225185 2.2 2007/01/04 09:15:47 33 30.7 N 117 0.6 W 31.6 22 km (14 mi) NW of Palomar Observatory, CA 10225197 2.0 2007/01/04 10:26:26 32 8.0 N 115 22.4 W 6.0 61 km (38 mi) S of Calexico, CA 10225201 3.0 2007/01/04 10:50:23 32 7.0 N 115 21.3 W 6.0 63 km (39 mi) SSE of Calexico, CA 10225209 2.2 2007/01/04 11:05:55 36 18.3 N 118 20.4 W 5.6 30 km (19 mi) W of Olancha, CA 10225217 2.2 2007/01/04 11:44:42 32 10.1 N 115 22.2 W 6.0 57 km (35 mi) SSE of Calexico, CA 10225225 2.1 2007/01/04 12:24:31 32 5.6 N 115 24.2 W 6.0 65 km (40 mi) S of Calexico, CA