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Earthquake Hazards Program

Magnitude 2.8 SOUTHERN CALIFORNIA

Monday, July 23, 2007 at 17:29:26 UTC

Historic USGS Moment Tensor Solutions

Historic Moment Tensor Solutions World Location
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

The most recent (20 or less) USGS Moment Tensor Solutions are shown.
Data from the Source Parameter Database.

                        E P I C E N T E R   |          MOMENT  |    P R I N C I P A L  A X E S       |N O D A L  P L A N E S | 
     DATE    TIME (UTC)   LAT      LONG  SRC|DEPTH     VAL  EX |     T            N            P     |     1           2     | %  SRC
  YR  MO DA HR MN SEC     deg      deg      |  km  Mw     Nm   |VAL  PL AZM  VAL  PL AZM  VAL  PL AZM|STK DP SLIP STK DP SLIP| DC
---------------------------------------------------------------------------------------------------------------------------------------
 1986 07 08 09:20:44.50  34.000 -116.610 PDE|  5.0 6.2 2.3  18 |2.24 43 291  0.13 40  74 -2.37 20 181|316 44  159  61 76   48| 89 GS              
 1987 11 24 01:54:14.51  33.083 -115.775 PDE|  8.0 5.9 9.1  17 |9.13  4  80 -0.02 85 223 -9.10  3 350|125 86  179 215 89    4|100 GS              
 1987 11 24 13:15:56.40  33.010 -115.840 PDE| 12.0 6.5 6.2  18 |6.20  2 257 -0.01 88  36 -6.20  1 167|302 88  180  32 90    2|100 GS              
 1992 04 23 04:50:23.22  33.961 -116.318 PDE| 12.0 6.2 2.4  18 |2.11  6 127  0.61 77 245 -2.72 12  35|172 77 -176  81 86  -13| 55 GS              
 1992 06 28 11:57:34.12  34.201 -116.436 PDE|  5.0 7.2 6.7  19 |6.42  6 298  0.51 81  76 -6.93  6 208|343 81  180  73 90    9| 85 GS              
 1992 06 28 15:05:30.70  34.203 -116.827 PDE|                  |      8 274                     8 182|318 78  180 228 90  -12|    GS              
 1999 10 16 09:46:44.13  34.594 -116.271 PDE| 20.0 7.1 5.6  19 |5.69  1 289 -0.21 79  24 -5.48 11 199|335 81 -173 244 83   -9| 93 GS              
 2001 12 08 23:36:10.66  32.038 -114.906 PDE| 15.0 5.8 6.2  17 |6.29 11  76 -0.20 55 182 -6.09 33 339|123 59 -163  24 75  -32| 94 GS              
 2002 02 22 19:32:41.75  32.319 -115.322 PDE| 10.0 5.6 3.7  17 |3.65 10  68  0.04 77 282 -3.69  7 159|204 78    3 113 88  168| 98 GS              

Latest USGS Fast Moment Tensor Solutions

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

 


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