
Southern California Earthquakes in the Past Week
Anthony Guarino
, Seismological Laboratory
Lucy Jones, U. S. Geological Survey
California Institute of Technology
April 29, 2005
This report covers the seven day period ending 17:00 on April 28/2005. During this period we detected and analysed 169 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
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10093909 3.4 2005/04/22 19:19:07 34 6.6 N 117 18.4 W 14.9 1 km ( 1 mi) WNW of San Bernardino, CA
10094017 2.3 2005/04/23 09:59:38 34 2.1 N 117 35.7 W 5.0 6 km ( 4 mi) ESE of Ontario, CA
10094129 2.4 2005/04/24 05:25:25 35 48.3 N 118 2.6 W 8.6 28 km (17 mi) SSW of Coso Junction, CA
10094133 2.2 2005/04/24 05:30:17 35 48.4 N 118 2.6 W 9.1 28 km (17 mi) SSW of Coso Junction, CA
10094249 2.7 2005/04/24 14:25:04 32 20.8 N 115 15.3 W 6.0 42 km (26 mi) SSE of Calexico, CA
10094253 3.6 2005/04/24 14:44:28 33 48.0 N 118 37.7 W 10.1 19 km (12 mi) W of Palos Verdes Point, CA
10094257 3.3 2005/04/24 14:46:44 33 48.0 N 118 37.8 W 4.3 19 km (12 mi) W of Palos Verdes Point, CA
10094265 2.2 2005/04/24 15:23:36 35 48.4 N 118 2.6 W 8.9 28 km (17 mi) SSW of Coso Junction, CA
10094293 2.1 2005/04/24 16:50:31 32 39.3 N 115 37.7 W 15.6 13 km ( 8 mi) W of Calexico, CA
10094357 2.0 2005/04/25 02:49:41 32 23.2 N 115 12.5 W 7.0 41 km (26 mi) SE of Calexico, CA
10094465 2.3 2005/04/25 17:14:44 33 40.6 N 116 46.6 W 15.5 10 km ( 6 mi) SW of Idyllwild, CA
10094489 2.4 2005/04/25 18:56:19 35 45.0 N 118 3.0 W 5.1 34 km (21 mi) SSW of Coso Junction, CA
10094509 2.1 2005/04/25 19:49:51 34 53.3 N 119 5.2 W 8.2 15 km ( 9 mi) WNW of Frazier Park, CA
10094521 2.2 2005/04/25 21:30:25 36 13.0 N 118 2.7 W 5.6 8 km ( 5 mi) SSW of Olancha, CA
10094565 2.4 2005/04/26 07:46:30 32 18.7 N 115 19.7 W 7.0 43 km (27 mi) SSE of Calexico, CA
10094569 2.4 2005/04/26 08:33:28 32 0.8 N 116 14.0 W 7.0 83 km (52 mi) SSW of Ocotillo, CA
10094577 2.3 2005/04/26 10:01:59 32 19.0 N 115 12.9 W 5.7 47 km (29 mi) SE of Calexico, CA
10094701 2.2 2005/04/26 23:18:30 32 28.1 N 115 26.9 W 17.5 23 km (14 mi) SSE of Calexico, CA
10094741 2.1 2005/04/27 03:11:46 32 19.8 N 115 13.4 W 5.5 45 km (28 mi) SE of Calexico, CA
10094773 2.9 2005/04/27 08:42:30 34 7.8 N 116 51.0 W 12.4 4 km ( 3 mi) NNW of Mt. San Gorgonio, CA
10094817 2.5 2005/04/27 10:10:35 32 4.7 N 116 14.5 W 7.0 77 km (48 mi) SSW of Ocotillo, CA
10094989 2.1 2005/04/27 18:04:17 32 28.9 N 115 13.2 W 6.0 33 km (21 mi) SE of Calexico, CA
10095049 2.3 2005/04/28 04:52:09 33 18.1 N 116 51.1 W 13.3 6 km ( 4 mi) S of Palomar Observatory, CA
10095053 2.6 2005/04/28 04:52:21 35 15.0 N 118 35.8 W 5.0 19 km (12 mi) NW of Tehachapi, CA
Comments Off

The time period covered is 4 pm on Thursday, April 14 (PDT) through 4 pm
on Thursday, April 21, (PDT). During this period we detected and
analyzed 226 earthquakes. Click
here to see a map.
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
-------------------------------------------------------------------------------------------
14137812 2.1 2005/04/15 03:28:57 33 41.6 N 116 44.3 W 18.6 6 km ( 4 mi) SSW of Idyllwild, CA
14137824 2.0 2005/04/15 05:35:23 34 17.9 N 116 48.5 W 9.2 6 km ( 3 mi) NE of Big Bear City, CA
14137996 3.1 2005/04/16 02:04:35 34 52.5 N 119 13.5 W 13.5 26 km (16 mi) WNW of Frazier Park, CA
14138080 5.2 2005/04/16 12:18:13 35 1.6 N 119 10.7 W 10.3 22 km (13 mi) W of Wheeler Ridge, CA
Felt from Bakersfield down through Los Angeles County and in parts of Orange County.
14138084 2.0 2005/04/16 12:21:31 35 1.9 N 119 9.9 W 13.2 20 km (13 mi) W of Wheeler Ridge, CA
14138088 2.4 2005/04/16 12:27:38 35 0.9 N 119 9.8 W 11.3 20 km (13 mi) W of Wheeler Ridge, CA
14138104 2.4 2005/04/16 12:43:12 35 0.8 N 119 9.7 W 11.5 20 km (12 mi) W of Wheeler Ridge, CA
14138112 2.3 2005/04/16 12:56:06 35 0.7 N 119 10.8 W 12.2 22 km (13 mi) W of Wheeler Ridge, CA
14138116 2.4 2005/04/16 12:57:43 35 0.5 N 119 11.0 W 11.5 22 km (14 mi) W of Wheeler Ridge, CA
14138148 2.4 2005/04/16 14:30:58 35 0.3 N 119 10.4 W 11.9 21 km (13 mi) W of Wheeler Ridge, CA
14138180 2.2 2005/04/16 18:43:38 34 60.0 N 119 11.1 W 14.2 22 km (14 mi) W of Wheeler Ridge, CA
14138316 2.2 2005/04/17 12:00:25 35 1.4 N 119 9.5 W 12.6 20 km (12 mi) W of Wheeler Ridge, CA
14138396 2.1 2005/04/17 17:04:22 35 0.5 N 119 9.9 W 11.8 20 km (13 mi) W of Wheeler Ridge, CA
14138572 2.6 2005/04/18 14:41:32 35 0.8 N 119 11.0 W 12.1 22 km (14 mi) W of Wheeler Ridge, CA
14138612 2.9 2005/04/18 17:08:56 32 26.1 N 115 18.0 W 6.0 32 km (20 mi) SE of Calexico, CA
14138648 2.6 2005/04/18 19:58:11 35 0.4 N 119 10.6 W 11.4 21 km (13 mi) W of Wheeler Ridge, CA
14138656 2.2 2005/04/18 21:27:57 32 30.4 N 115 15.7 W 6.0 28 km (18 mi) SE of Calexico, CA
12192775 2.4 2005/04/18 21:28:04 32 29.3 N 115 14.8 W 6.0 31 km (19 mi) SE of Calexico, CA
14138896 3.0 2005/04/19 23:48:20 32 44.4 N 117 35.2 W 6.0 31 km (20 mi) W of Mission Beach, CA
A few isolated felt reports from the greater San Diego area.
14138908 2.9 2005/04/20 01:51:06 32 18.5 N 115 18.5 W 6.0 44 km (27 mi) SSE of Calexico, CA
14138920 2.1 2005/04/20 05:40:08 35 0.3 N 119 10.6 W 12.0 21 km (13 mi) W of Wheeler Ridge, CA
14138952 2.0 2005/04/20 08:17:34 34 58.5 N 119 10.8 W 14.7 22 km (14 mi) W of Wheeler Ridge, CA
14138972 2.6 2005/04/20 10:22:29 36 1.4 N 117 32.1 W 0.9 32 km (20 mi) NNW of Trona, CA
14139032 3.6 2005/04/20 15:40:48 34 53.6 N 119 5.3 W 11.3 15 km (10 mi) WNW of Frazier Park, CA
Felt in Bakersfield, Frazier Park, Gorman and Lebec.
14139108 4.0 2005/04/20 23:36:19 33 39.4 N 120 2.0 W 6.0 33 km (20 mi) SSE of Santa Rosa Is., CA
14139112 2.8 2005/04/20 23:42:44 33 35.3 N 120 6.8 W 7.1 40 km (25 mi) S of Santa Rosa Is., CA
14139160 3.8 2005/04/21 06:26:37 33 39.6 N 120 1.6 W 6.0 33 km (20 mi) SSE of Santa Rosa Is., CA
14139164 2.6 2005/04/21 06:43:52 33 40.0 N 119 59.2 W 6.0 33 km (20 mi) SSE of Santa Rosa Is., CA
14139176 2.9 2005/04/21 07:08:21 33 39.9 N 120 1.1 W 6.0 32 km (20 mi) SSE of Santa Rosa Is., CA
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Comments Off
The time period covered is 4 pm on Thursday, April 7 (PDT) through 4 pm
on Thursday, April 14, (PDT). During this period we detected and
analyzed 155 earthquakes. Click
here to see a map.
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
-------------------------------------------------------------------------------------------
14136548 2.2 2005/04/09 03:08:40 33 11.4 N 115 38.6 W 4.0 2 km ( 1 mi) NNW of Obsidian Butte, CA
14136556 2.3 2005/04/09 03:13:13 33 10.7 N 115 38.8 W 4.1 1 km ( 1 mi) NW of Obsidian Butte, CA
14136564 2.3 2005/04/09 06:47:43 33 58.6 N 118 52.5 W 14.2 7 km ( 4 mi) WSW of Pt. Dume, CA
14136572 2.5 2005/04/09 07:34:16 34 39.9 N 119 3.2 W 0.3 20 km (12 mi) SSW of Frazier Park, CA
14136644 2.2 2005/04/09 14:57:26 36 10.3 N 117 53.6 W 5.6 15 km ( 9 mi) NNE of Coso Junction, CA
14136700 2.0 2005/04/09 18:22:32 34 50.7 N 118 57.3 W 15.6 3 km ( 2 mi) NNW of Frazier Park, CA
14136712 2.8 2005/04/09 18:54:25 32 5.9 N 115 47.9 W 6.0 69 km (43 mi) SSW of Calexico, CA
14136932 2.0 2005/04/11 03:54:37 34 9.3 N 116 24.9 W 3.4 5 km ( 3 mi) NE of Yucca Valley, CA
14137104 2.6 2005/04/11 20:25:19 32 33.1 N 115 16.7 W 29.9 24 km (15 mi) ESE of Calexico, CA
14137160 3.9 2005/04/12 04:06:46 32 43.6 N 116 49.7 W 19.1 15 km ( 9 mi) ESE of El Cajon, CA
Widely felt in San Diego County and felt north of Temecula.
14137164 2.3 2005/04/12 04:10:38 32 43.7 N 116 49.2 W 18.8 15 km ( 9 mi) ESE of El Cajon, CA
14137688 2.5 2005/04/14 11:45:24 33 10.9 N 115 36.4 W 3.9 3 km ( 2 mi) ENE of Obsidian Butte, CA
14137696 2.2 2005/04/14 12:00:40 33 10.5 N 115 36.2 W 2.9 3 km ( 2 mi) E of Obsidian Butte, CA
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Comments Off
The time period covered is 4 pm on Thursday, March 31 (PST) through 4 pm
on Thursday, April 7, (PDT). During this period we detected and
analyzed 131 earthquakes. Click
here to see a map.
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
-------------------------------------------------------------------------------------------
14135032 3.2 2005/03/31 11:13:42 35 19.4 N 118 33.5 W 2.8 24 km (15 mi) NNW of Tehachapi, CA
There have been a couple of felt reports for this event.
14135128 2.3 2005/04/01 00:18:29 32 20.8 N 116 15.9 W 6.0 50 km (31 mi) SSW of Ocotillo, CA
14135260 2.2 2005/04/01 14:42:44 32 44.5 N 116 36.7 W 14.8 33 km (21 mi) E of El Cajon, CA
14135280 2.3 2005/04/01 16:58:52 34 9.5 N 116 25.1 W 2.9 5 km ( 3 mi) NNE of Yucca Valley, CA
14135288 2.0 2005/04/01 17:55:52 36 34.0 N 117 58.6 W 5.6 9 km ( 5 mi) ESE of Lone Pine, CA
14135328 2.2 2005/04/02 02:28:24 34 35.7 N 116 21.0 W 5.4 51 km (32 mi) N of Joshua Tree, CA
14135412 2.1 2005/04/02 10:03:57 32 48.8 N 115 27.3 W 13.3 9 km ( 6 mi) ENE of El Centro, CA
14135452 2.1 2005/04/02 12:48:07 36 1.2 N 117 49.5 W 1.0 11 km ( 7 mi) ESE of Coso Junction, CA
14135524 2.7 2005/04/02 20:13:57 35 25.3 N 118 25.7 W 5.0 24 km (15 mi) S of town of Lake Isabella, CA
14135528 2.1 2005/04/02 21:25:04 34 8.2 N 116 49.9 W 10.4 4 km ( 3 mi) N of Mt. San Gorgonio, CA
14135536 2.3 2005/04/02 22:37:42 32 42.5 N 115 56.4 W 5.2 6 km ( 4 mi) ESE of Ocotillo, CA
14135712 2.5 2005/04/04 06:50:54 34 33.8 N 116 15.7 W 5.6 48 km (30 mi) N of Joshua Tree, CA
14135952 3.0 2005/04/05 21:20:26 32 7.3 N 115 0.1 W 0.7 73 km (45 mi) SSW of Yuma, AZ
14136288 2.5 2005/04/07 15:07:16 34 40.5 N 116 17.9 W 8.3 60 km (37 mi) N of Joshua Tree, CA
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Comments Off
Commentary
At 11:48 pm last night, there was a ML3.0 quake offshore, 26 miles west of San Diego. We have received a few isolated felt reports from the greater San Diego area.