SCSN Earthquake Commentary

December 30, 2004

Commentary

Filed under: Weekly — kate @ 12:00 am



Southern California Earthquakes in the Past Week

Nick Scheckel ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

December 30, 2004

The time period covered is 4 pm on Thursday, December 23 (PST)
through 4 pm on Thursday, December 30 (PST). During this period
we detected and analyzed 146 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
-------------------------------------------------------------------------------------------
10069345  2.4  2004/12/23 18:00:20 35 35.0 N 116  3.5 W  2.7   35 km (22 mi) N    of Baker, CA
10069349  3.1  2004/12/23 19:14:49 32  5.6 N 116 25.7 W  6.0   77 km (48 mi) SE   of San Ysidro, CA
10069373  2.4  2004/12/23 23:18:32 33 14.9 N 116 19.0 W 13.0    5 km ( 3 mi) E    of Borrego Springs, CA
10069585  2.3  2004/12/25 11:26:33 33 28.6 N 116 32.6 W 13.8   15 km ( 9 mi) SE   of Anza, CA
10069593  2.4  2004/12/25 13:35:35 36  0.7 N 117 48.9 W  1.4   12 km ( 8 mi) ESE  of Coso Junction, CA
10069813  2.0  2004/12/26 09:14:30 34 20.7 N 116 28.3 W  3.5   25 km (16 mi) N    of Yucca Valley, CA
10070001  2.1  2004/12/27 07:54:37 33 21.7 N 116 24.9 W 14.6   13 km ( 8 mi) NNW  of Borrego Springs, CA
10070057  2.1  2004/12/27 13:08:36 35 13.2 N 118 36.5 W  5.7   18 km (11 mi) NW   of Tehachapi, CA
10070125  2.6  2004/12/27 18:49:13 35  3.1 N 119  2.0 W 10.5   10 km ( 6 mi) WNW  of Wheeler Ridge, CA
10070129  2.4  2004/12/27 18:52:39 35  3.1 N 119  2.5 W 11.3   10 km ( 6 mi) WNW  of Wheeler Ridge, CA
10070133  2.1  2004/12/27 19:01:36 35  2.5 N 119  2.1 W 11.6    9 km ( 6 mi) WNW  of Wheeler Ridge, CA
10070145  2.3  2004/12/27 21:16:55 33 42.1 N 118 18.4 W 14.4    1 km ( 1 mi) WSW  of Pt. Fermin San Pedro, CA
10070173  3.0  2004/12/28 06:37:40 32  6.1 N 115 52.8 W  6.0   71 km (44 mi) S    of Ocotillo, CA
10070345  2.6  2004/12/29 14:01:00 32 17.7 N 115 13.9 W  0.2   48 km (30 mi) SSE  of Calexico, CA
-------------------------------------------------------------------------------------------


December 23, 2004

Commentary

Filed under: Weekly — kate @ 12:00 am


Southern California Earthquakes in the Past Week

Anthony Guarino ,


Seismological Laboratory

Lucy Jones,


U. S. Geological Survey

California Institute of Technology

December 23, 2004

The time period covered is 4 pm on Thursday, December 17, 2004 (PST)
through 4 pm on Thursday,
December 23, 2004 (PST). During this period

we dectected and analyzed 150 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.


Event ID Magnitude PDT Date   PDT Time  Lat.     Long.    Depth  Descriptive location
-------------------------------------------------------------------------------------------
#EVID     MAG  YYYY/MM/DD HH:mm:SS LAT       LON        DEP     LOCATION
-------------------------------------------------------------------------------------------
10067849  2.0  2004/12/16 20:34:38 32 29.6 N 117 11.7 W  6.0   16 km (10 mi) WSW  of San Ysidro, CA
10067869  2.6  2004/12/16 21:32:35 33 52.1 N 118 44.0 W  5.7   16 km (10 mi) SSE  of Pt. Dume, CA
If you felt this quake, and would like to report it, click here.
10068045  2.4  2004/12/17 14:35:18 32 38.3 N 116  8.0 W 10.6   17 km (10 mi) SW   of Ocotillo, CA
10068077  2.1  2004/12/17 17:35:43 33 57.8 N 118 21.0 W 14.1    2 km ( 2 mi) W    of Inglewood, CA
Possibly felt in Inglewood and surrounding cities
If you felt this quake, and would like to report it, click here.
10068121  2.1  2004/12/18 00:34:01 32 23.4 N 115 12.4 W  6.0   41 km (26 mi) SE   of Calexico, CA
10068181  2.2  2004/12/18 11:31:18 32 22.6 N 115 13.0 W  6.0   42 km (26 mi) SE   of Calexico, CA
10068417  2.6  2004/12/19 13:16:32 33 52.0 N 118 43.8 W  3.7   16 km (10 mi) SSE  of Pt. Dume, CA
10068469  2.2  2004/12/19 15:18:19 33 30.2 N 116 30.5 W 14.9   16 km (10 mi) ESE  of Anza, CA
10068537  2.2  2004/12/20 00:47:00 35  2.3 N 118 26.1 W  9.3   10 km ( 6 mi) S    of Tehachapi, CA
10068557  2.1  2004/12/20 04:28:13 33 14.5 N 116 24.9 W  4.3    4 km ( 3 mi) WSW  of Borrego Springs, CA
10068597  2.0  2004/12/20 07:57:43 32 43.6 N 115 25.1 W 18.4   10 km ( 6 mi) NE   of Calexico, CA
10068593  2.1  2004/12/20 08:00:34 32 41.4 N 115 24.2 W 16.8    9 km ( 6 mi) ENE  of Calexico, CA
10068613  2.9  2004/12/20 08:51:37 32  7.5 N 115 20.0 W  6.0   62 km (39 mi) SSE  of Calexico, CA
10068849  2.3  2004/12/21 11:46:40 34 20.9 N 118 40.9 W 13.8    8 km ( 5 mi) NNE  of Simi Valley, CA
Possibly felt in Simi Valley and surrounding cities
If you felt this quake, and would like to report it, click here.
10068893  2.2  2004/12/21 17:03:51 34 13.9 N 118 42.8 W 14.2    5 km ( 3 mi) S    of Simi Valley, CA
10068921  2.7  2004/12/21 22:12:24 35 24.2 N 119 18.1 W 25.8   27 km (17 mi) W    of Bakersfield, CA
Possibly felt in the epicentral area
If you felt this quake, and would like to report it, click here.
10068933  2.1  2004/12/21 23:05:14 34  9.2 N 117 26.1 W 12.4    5 km ( 3 mi) N    of Fontana, CA
Possibly felt in Fontana and surrounding area
If you felt this quake, and would like to report it, click here.
10069025  2.9  2004/12/22 07:52:30 32 39.3 N 118  5.5 W  6.0   30 km (19 mi) SE   of San Clemente Is. 

# Number of events: 18

If you felt any earthquake, and would like to report it, click here.


Please email questions and comments to Anthony Guarino at:
AGuarino@gps.caltech.edu


-------------------------------------------------------------------------------------------

December 16, 2004

Commentary

Filed under: Old Commentary — kate @ 4:00 am

At 3:37 A.M., 16-Dec-2004 a light earthquake, magnitude 3.6 occurred 9 miles SSE of Pt. Dume (in Santa Monica Bay). This event was reported felt in the Santa Monica / West Los Angeles, Malibu and west San Fernando Valley areas. It is not an aftershock. Earthquakes in this size range occassionally happen in the Santa Monica Bay region. -rsd.

Commentary

Filed under: Weekly — kate @ 12:00 am


Southern California Earthquakes in the Past Week

Anthony Guarino ,


Seismological Laboratory

Lucy Jones,


U. S. Geological Survey

California Institute of Technology

December 16, 2004

The time period covered is 4 pm on Thursday, December 9, 2004 (PST)
through 4 pm on Thursday,
December 16, 2004 (PST). During this period

we dectected and analyzed 171 earthquakes. Click
here to see a map.

Note: This weekly report is one day early, due to the Thanksgiving Holiday

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.


#EVID     MAG  YYYY/MM/DD HH:mm:SS LAT       LON        DEP     LOCATION
10066009  2.3  2004/12/10 02:01:40 33 57.3 N 117  2.2 W 12.5    6 km ( 4 mi) WNW  of Beaumont, CA
If you felt this quake, and would like to report it, or to view the "Did You Feel It?" CIIM map, click here.
10066021  3.3  2004/12/10 02:49:29 32  9.6 N 115 51.3 W  6.0   65 km (41 mi) SSE  of Ocotillo, CA
Possibly felt in Northern Baja
10066029  2.5  2004/12/10 04:11:29 35 35.9 N 119 53.0 W 13.9   29 km (18 mi) NNE  of Simmler, CA
10066105  2.1  2004/12/10 11:55:15 35  4.8 N 117  0.9 W  4.0   21 km (13 mi) N    of Barstow, CA
10066137  2.2  2004/12/10 12:58:07 32 30.0 N 115 13.7 W  6.0   31 km (19 mi) SE   of Calexico, CA
10066169  2.1  2004/12/10 15:11:47 33 41.8 N 116 44.0 W 18.2    6 km ( 4 mi) SSW  of Idyllwild, CA
10066293  2.2  2004/12/11 09:01:34 33 27.4 N 116 35.5 W 11.2   13 km ( 8 mi) SE   of Anza, CA
10066385  2.6  2004/12/11 20:52:04 32  9.1 N 115 51.6 W  6.7   66 km (41 mi) S    of Ocotillo, CA
10066389  3.7  2004/12/11 21:05:52 34  9.0 N 116 58.9 W 11.5   12 km ( 8 mi) SSW  of town of Big Bear Lake, CA
Felt in Big Bear City and Big Bear Lake.
To view the ShakeMap for this event, click here.
If you felt this event, and would like to report it, or to view a map of the felt area, click here.
10066393  2.3  2004/12/11 21:12:29 34  9.0 N 116 59.0 W 12.4   12 km ( 8 mi) SSW  of town of Big Bear Lake, CA
10066417  2.1  2004/12/12 00:56:29 34  9.0 N 116 59.1 W 12.1   12 km ( 8 mi) ESE  of Running Springs, CA
10066429  2.1  2004/12/12 03:18:35 34  2.1 N 117 33.3 W 11.9    9 km ( 5 mi) SSE  of Rancho Cucamonga, CA
10066569  3.0  2004/12/12 19:27:25 32 10.1 N 115 51.1 W 11.3   64 km (40 mi) SSE  of Ocotillo, CA
10066605  3.0  2004/12/13 04:05:41 32  0.3 N 115 47.1 W  7.0   79 km (49 mi) SSW  of Calexico, CA
10066841  2.3  2004/12/13 23:04:23 34  9.2 N 116 59.0 W 12.7   12 km ( 7 mi) SW   of town of Big Bear Lake, CA
10067073  2.3  2004/12/14 12:20:46 33 15.0 N 116  5.7 W  1.8   12 km ( 8 mi) NNE  of Ocotillo Wells, CA
10067089  2.5  2004/12/14 12:46:13 32 22.4 N 115 16.9 W  7.0   38 km (24 mi) SSE  of Calexico, CA
10067109  2.1  2004/12/14 14:12:08 33 42.6 N 118 20.7 W  4.3    5 km ( 3 mi) W    of Pt. Fermin San Pedro, CA
10067329  2.2  2004/12/15 10:07:31 36 13.1 N 118 18.3 W  6.2   28 km (17 mi) WSW  of Olancha, CA
10067405  3.6  2004/12/16 03:37:51 33 52.1 N 118 44.1 W  0.0   16 km (10 mi) SSE  of Pt. Dume, CA
Felt widely throughout West Los Angeles, and parts of northern Orange County.
To view the ShakeMap for this event, click here.
If you felt this event, and would like to report it, or to view a map of the felt area, click here.
10067421  2.2  2004/12/16 04:30:19 34 18.4 N 116 26.7 W  2.6   21 km (13 mi) N    of Yucca Valley, CA
10067605  2.5  2004/12/16 10:57:44 34 31.0 N 118 52.9 W 15.1   14 km ( 9 mi) NNE  of Fillmore, CA  

# Number of events: 22

If you felt any earthquake, and would like to report it, click here.


Please email questions and comments to Anthony Guarino at:
AGuarino@gps.caltech.edu


-------------------------------------------------------------------------------------------

December 11, 2004

Commentary

Filed under: Old Commentary — kate @ 9:19 pm

At 9:05 pm, there was a ML 3.7 event located 7 miles SSW of Big Bear City. It was reported felt in the immediate area.

December 10, 2004

Commentary

Filed under: Old Commentary — kate @ 8:55 am

There was a ML3.3 overnight in the northern Baja area. The time was 2:49 am & the epicenter was located 41 miles south-southeast of Ocotillo CA. This quake was probably not felt in the US.

December 9, 2004

Commentary

Filed under: Weekly — kate @ 12:00 am



Southern California Earthquakes in the Past Week

Nick Scheckel ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

December 9, 2004

The time period covered is 4 pm on Thursday, December 2 (PST)
through 4 pm on Thursday, December 9 (PST). During this period
we detected and analyzed 140 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
-------------------------------------------------------------------------------------------
10064433  2.1  2004/12/03 05:40:15 35 45.3 N 117 45.6 W  9.1   17 km (11 mi) NNW  of Ridgecrest, CA
10064449  2.4  2004/12/03 05:45:28 35 45.2 N 117 45.6 W  9.2   17 km (11 mi) NNW  of Ridgecrest, CA
10064497  2.1  2004/12/03 09:14:21 33 59.4 N 116 59.9 W 15.4    6 km ( 4 mi) SSE  of Yucaipa, CA
10064737  3.1  2004/12/04 16:06:02 34 41.7 N 116 22.2 W  2.9   60 km (37 mi) ENE  of Lucerne Valley, CA
               Possibly felt.
10064837  2.2  2004/12/05 07:32:03 33 11.1 N 115 36.7 W  1.4    3 km ( 2 mi) NE   of Obsidian Butte, CA
10064841  2.2  2004/12/05 07:42:02 33 11.1 N 115 36.4 W  1.5    3 km ( 2 mi) ENE  of Obsidian Butte, CA
10064905  2.3  2004/12/05 16:55:23 33  6.5 N 115 36.3 W 14.0    7 km ( 5 mi) SSE  of Obsidian Butte, CA
10064921  3.4  2004/12/05 22:08:42 32 10.8 N 116  7.6 W  5.7   63 km (39 mi) SSW  of Ocotillo, CA
               Possibly felt.
10064977  2.2  2004/12/06 11:13:24 34 21.5 N 116  7.7 W  6.2   26 km (16 mi) NNW  of Twentynine Palms, CA
10065241  3.5  2004/12/07 12:54:44 34 16.3 N 119 41.0 W  0.1   17 km (10 mi) S    of Santa Barbara, CA
               Felt in Santa Barbara and Goleta.
10065245  2.6  2004/12/07 13:01:07 34 16.7 N 119 40.5 W  0.6   16 km (10 mi) S    of Santa Barbara, CA
10065249  2.2  2004/12/07 13:10:47 34 38.4 N 118 39.6 W  8.6   13 km ( 8 mi) NNW  of Castaic Lake dam, CA
10065305  2.2  2004/12/07 16:09:16 35 29.0 N 119 22.3 W 30.9   36 km (22 mi) WNW  of Bakersfield, CA
10065621  2.0  2004/12/09 02:44:55 34 54.1 N 116 21.1 W  4.1   48 km (30 mi) SSW  of Baker, CA
-------------------------------------------------------------------------------------------


December 7, 2004

Commentary

Filed under: Old Commentary — kate @ 3:06 pm

A ML3.5 (Mw3.6) quake at 12:54 pm today was felt in Santa Barbara & Goleta. The epicenter was located under the Santa Barbara channel 10 miles south of Santa Barbara.

December 6, 2004

Commentary

Filed under: Old Commentary — kate @ 9:16 am

Two quakes in southern California over the weekend that might possibly have been felt, but have not been reported as felt. The first was in the Hector Mines area: a ML3.1 at 4:06 pm Saturday afternoon, 12 miles west of Ludlow.

The other was a ML3.4 in northern Baja, 36 miles northeast of Ensenada. It occurred at 10:08 pm Sunday.

In northern California, a Mw4.3 in the Willow Creek area, near Eureka, was widely felt. It occurred at 5:48 pm Saturday. There was also a ML3.4 Parkfield quake at 9:39 pm Friday, located 4 miles northwest of Parkfield.

December 2, 2004

Commentary

Filed under: Weekly — kate @ 12:00 am



Southern California Earthquakes in the Past Week

Nick Scheckel ,

Seismological Laboratory
Lucy Jones,

U. S. Geological Survey
California Institute of Technology

December 2, 2004

The time period covered is 4 pm on Thursday, November 25 (PST)
through 4 pm on Thursday, December 2 (PST). During this period
we detected and analysed 175 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
-------------------------------------------------------------------------------------------
10063129  2.1  2004/11/26 21:57:52 32 37.8 N 117 22.2 W  5.9   20 km (12 mi) SW   of Mission Beach, CA
10063173  2.2  2004/11/27 06:27:57 32 55.2 N 117 34.2 W 20.3   30 km (19 mi) WNW  of La Jolla, CA
10063225  2.0  2004/11/27 16:39:36 33 38.0 N 117 58.3 W 16.0    4 km ( 3 mi) WNW  of Newport Beach, CA
10063301  2.1  2004/11/28 06:48:17 36  0.6 N 117 24.1 W  5.0   27 km (17 mi) N    of Trona, CA
10063309  2.2  2004/11/28 07:49:22 35 21.1 N 118 32.4 W  3.8   26 km (16 mi) NNW  of Tehachapi, CA
10063337  2.0  2004/11/28 16:38:46 35 24.2 N 118 37.8 W  5.6   28 km (18 mi) NE   of Arvin, CA
10063581  2.0  2004/11/30 00:37:40 33 35.8 N 117 51.2 W 13.8    8 km ( 5 mi) ESE  of Newport Beach, CA
10063597  2.1  2004/11/30 02:50:35 33 57.5 N 116 53.9 W 15.9    4 km ( 3 mi) NNW  of Banning, CA
10063805  2.6  2004/11/30 16:43:15 32 20.3 N 115  8.8 W  6.0   49 km (31 mi) SE   of Calexico, CA
10063889  2.2  2004/12/01 06:09:41 34 22.7 N 120 41.8 W  6.8   23 km (14 mi) SSW  of Pt. Arguello, CA
10063961  2.3  2004/12/01 11:18:22 33 59.5 N 116 59.4 W  8.2    6 km ( 4 mi) SE   of Yucaipa, CA
10064117  2.1  2004/12/01 23:40:00 36  1.2 N 117 46.6 W  2.1   16 km (10 mi) E    of Coso Junction, CA
10064241  2.7  2004/12/02 10:05:42 32 20.0 N 115 11.1 W  6.0   47 km (29 mi) SE   of Calexico, CA
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