February 23, 1995

		Weekly Earthquake Report for Southern California
		------------------------------------------------
        		     February 16 - 22, 1995

	Prepared by:  Kate Hutton, Seismological Laboratory
		      (kate@bombay.gps.caltech.edu)
                      Lucy Jones, U.S. Geological Survey
		      California Institute of Technology

	For further information, please contact the authors or the Caltech 
	Public Relations Office at 818-395-6326.  For daily updates, call 
	our Earthquake Information Hotline: 818-395-6977.
			--------------------------------
	This week's Report covers the time period from midnight Thursday
	morning, February 16, Pacific Standard Time, to midnight 
	Wednesday night, February 22, 1995, Pacific Standard Time.  We 
	recorded 251 earthquakes of M1.0 or larger during the 7-day period 
	covered.
		The largest and most widely felt earthquake this week
	occurred near the Malibu coast on Sunday afternoon, at 1:24 pm.
	It had a magnitude of M4.3 and was followed 90 minutes later by
	a M3.8 aftershock.  Both shocks had thrust focal mechanisms.
	Neither, by the way, was a Northridge aftershock; this site is
	about 15 miles southwest of the Northridge aftershock zone.
		Earlier that day, at 7:47 am, there was a Big Bear aftershock
	(of the Landers/Big Bear sequence from June 28, 1992).  This quake,
	M3.5, was also felt in its epicentral area.
		Then on Tuesday evening, a M3.1 Landers aftershock was
	felt slightly in the Yucca Valley area.
		The table lists the quakes this 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.

	Table 1
	-------
	Date  Time      N Lat.   W Long.   Mag  
	-------------------------------------------------------------
         2/16  2:24 pm  33 56.6  116 58.2  2.2  1 mi. NNE of Beaumont
         2/17  2:45 am  33 29.7  118 15.9  2.3  10 mi. NNE of Avalon, 
						Catalina Island
         2/17  5:47 am  33 58.2  117 36.0  2.5  6 mi. NNW of Corona
         2/17 11:28 am  34 50.0  120 30.9  2.1  9 mi. SSW of Santa Maria
         2/17  2:37 pm  33 58.6  116 58.6  2.1  3 mi. N of Beaumont
         2/17  4:30 pm  36 23.1  117 58.8  2.0  7 mi. N of Olancha
         2/17  5:50 pm  34  9.6  116 25.6  2.2  3 mi. NNE of Yucca Valley
         2/17  8:43 pm  33 59.1  117 14.9  2.6  6 mi. SSE of the I10/I215 
						interchange
         2/18  1:02 am  34 16.9  117 31.8  2.3  6 mi. E of Mt. Baldy
         2/18 11:22 am  34 28.5  116 29.9  2.0  24 mi. N of Yucca Valley
         2/18  8:17 pm  34 15.1  118 25.0  2.1  2 mi. SSE of San Fernando
         2/18  8:33 pm  34 20.0  116 28.2  2.0  14 mi. N of Yucca Valley
         2/18 11:28 pm  33 58.9  116 20.4  2.5  9 mi. E of Desert Hot 
						Springs
         2/19  7:47 am  34 19.3  116 52.8  3.5  4 mi. NNW of Big Bear City
                                                FELT
         2/19  8:43 am  33 59.1  117 14.9  2.2  6 mi. SSE of the I10/I215 
						interchange
         2/19  1:24 pm  34  2.9  118 54.9  4.3  1 mi. ENE of Leo Carrillo 
						State Beach; WIDELY FELT
         2/19  2:01 pm  32 48.6  116  9.0  2.7  10 mi. WNW of Ocotillo
         2/19  2:21 pm  32 48.4  116  8.8  2.2  	"
         2/19  2:48 pm  35 31.6  118 15.1  2.3  14 mi. ESE of the town of 
						Lake Isabella
         2/19  2:54 pm  34  2.7  118 55.3  3.8  1 mi. E of Leo Carrillo 
						State Beach; FELT
         2/19  3:34 pm  36  7.2  117 50.7  2.0  5 mi. ESE of Haiwee Reservoi
         2/19  4:42 pm  34 17.3  118 23.3  2.1  2 mi. E of San Fernando
         2/19  4:51 pm  34 37.3  116 40.1  2.0  20 mi. NE of Lucerne Valley
         2/19  5:42 pm  34  2.5  118 54.7  2.0  1 mi. E of Leo Carrillo 
						State Beach
         2/20 12:14 am  33 29.4  116 24.5  2.0  16 mi. S of Palm Desert
         2/20 12:45 am  34  2.7  118 55.5  2.1  1 mi. ENE of Leo Carrillo 
						State Beach
         2/20  1:28 am  36  4.1  117 51.2  2.2  5 mi. ENE of Coso Junction
         2/20  2:57 am  34  7.4  116 24.0  2.0  2 mi. E of Yucca Valley
         2/20  3:55 am  36  4.1  117 51.3  2.3  5 mi. ENE of Coso Junction
         2/20  8:20 am  33 17.8  116 10.0  2.0  10 mi. N of Ocotillo Wells
         2/20 10:58 am  34 11.3  118 33.4  2.3  2 mi. ESE of Canoga Park
         2/20 11:10 am  34 22.6  116 27.7  2.1  17 mi. N of Yucca Valley
         2/20  2:33 pm  34 27.2  119 19.8  2.1  4 mi. W of Ojai
         2/20  8:12 pm  32 50.0  115 38.0  2.5  5 mi. WNW of El Centro
         2/20  8:13 pm  32 49.9  115 37.9  2.2  	"
         2/21 12:28 am  34 12.6  116 50.0  2.3  3 mi. SSE of Big Bear City
         2/21  1:43 am  34 15.7  119 29.3  2.1  9 mi. S of Carpinteria
         2/21  7:04 am  36  4.0  117 51.3  2.6  5 mi. ENE of Coso Junction
         2/21 12:26 pm  34  1.0  116 19.0  2.1  10 mi. SE of Yucca Valley
         2/21  1:14 pm  32  6.3  116  0.1  2.7  43 mi. S of Ocotillo
         2/21  4:05 pm  36  4.0  117 51.0  2.1  5 mi. ENE of Coso Junction
         2/21  8:27 pm  34  8.8  116 25.8  3.1  2 mi. NNE of Yucca Valley
						FELT
         2/22  9:29 am  36 26.9  117 51.7  2.0  13 mi. NE of Olancha
         2/22  1:35 pm  36  4.0  117 51.1  2.1  5 mi. ENE of Coso Junction
         2/22  6:25 pm  36  4.2  117 51.1  2.8  	"
         2/22  6:28 pm  36  4.1  117 51.1  2.6  	"
         2/22  6:29 pm  36  4.4  117 51.0  2.0  	"
         2/22 11:52 pm  35  5.9  119  7.4  2.4  11 mi. WNW of the I5/99 
						interchange         
        -------------------------------------------------------------