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Earthquake Hazards Program

Magnitude 5.7 SAMOA ISLANDS REGION

Friday, July 06, 2007 at 17:40:48 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
---------------------------------------------------------------------------------------------------------------------------------------
 2004 09 03 19:04:47.98 -15.254 -173.340 PDE| 14.0 6.2 2.5  18 |2.50 11 344  0.11 71 220 -2.60 16  77|120 71   -3 211 87 -161| 92 GS              
 2004 09 03 23:18:16.94 -15.038 -173.479 PDE| 11.0 5.6 2.7  17 |2.64 24 345  0.10 39 234 -2.74 41  98|123 41  -16 225 80 -130| 93 GS              
 2004 09 04 20:24: 7.78 -14.829 -173.243 PDE|  5.0 5.6 3.2  17 |3.33 52 314 -0.23 15 204 -3.11 34 104|149 18   34  27 80  105| 86 GS              
 2004 09 08 11:00:18.45 -15.153 -173.429 PDE| 19.0 5.7 4.9  17 |5.03 68 189 -0.19  3 286 -4.84 22  17|112 23   97 285 67   87| 92 GS              
 2004 10 09 15:44:24.38 -15.186 -173.284 PDE| 35.0 5.9 8.3  17 |8.21 12 256  0.14 55 148 -8.35 32 353| 30 58  -16 128 77 -147| 97 GS              
 2004 10 11 22:03:46.92 -14.816 -175.076 PDE| 13.0 5.7 4.5  17 |4.63 12 308 -0.29 78 142 -4.33  3  39| 84 80    7 353 83  169| 87 GS              
 2004 11 21 11:07:13.65 -15.403 -174.908 PDE|267.0 5.9 9.6  17 |9.63 25 101  0.00  5   9 -9.63 65 268|202 21  -76   7 70  -95|100 GS              
 2004 12 18 17:15:26.43 -16.052 -174.785 PDE| 21.0 5.7 4.8  17 |4.87  1 254 -0.10 87   4 -4.77  3 164|299 87 -179 209 89   -3| 96 GS              
 2005 02 10 07:10:35.61 -15.111 -173.745 PDE| 46.0 5.5 2.1  17 |2.18 30 231 -0.11 26 125 -2.08 48   2| 11 28  -21 120 80 -116| 90 GS              
 2005 04 26 18:56:30.45 -19.106 -176.532 PDE| 21.0 5.6 3.0  17 |3.18 11 274 -0.43 78  76 -2.75  4 183|318 79  174  49 85   11| 73 GS              
 2005 05 18 10:27: 6.41 -15.318 -173.240 PDE| 21.0 6.0 1.4  18 |1.32 61 293  0.08 21 161 -1.39 20  63|122 31   47 350 68  112| 88 GS              
 2005 08 06 09:56:13.54 -19.614 -175.850 PDE|217.0 5.9 1.0  18 |1.00 30 116  0.01  8  22 -1.02 59 279|228 17  -63  20 75  -98| 98 GS              
 2005 09 04 12:13:38.65 -17.108 -176.775 PDE| 19.0 5.6 3.5  17 |3.65 12  92 -0.23 76 245 -3.42  6   1|136 77  176 227 86   13| 87 GS              
 2005 09 22 00:07:21.34 -16.674 -172.655 PDE|  8.0 5.8 6.9  17 |6.83 49 281  0.06  1  12 -6.89 41 103|211  4  109  12 86   89| 98 GS              
 2005 10 30 13:08:18.89 -16.527 -172.776 PDE|  6.0 5.7 3.8  17 |3.82 53 284 -0.08 10  28 -3.74 35 125|254 14  137  26 81   80| 96 GS              
 2005 11 09 08:00:27.99 -15.271 -173.637 PDE| 31.0 5.4 1.5  17 |1.70 45 180 -0.35 14 284 -1.36 42  27|187 14  173 284 88   76| 59 GS              
 2006 04 30 15:08:41.10 -15.436 -173.228 PDE| 19.0 5.5 1.9  17 |1.92 88  56 -0.04  2 223 -1.88  0 313| 45 45   92 222 45   88| 96 GS              
 2006 05 05 06:16:20.29 -19.833 -174.652 PDE| 26.0 5.9 8.1  17 |8.10 15 311 -0.06 66 184 -8.04 18  46| 88 67   -2 179 88 -157| 99 GS              
 2006 07 07 07:26:12.53 -15.244 -173.610 PDE| 34.0 6.0 1.1  18 |1.07 47 195  0.04  0 104 -1.11 43  14| 96  2   81 284 88   90| 93 GS              
 2006 09 28 06:22: 9.73 -16.592 -172.033 PDE| 36.0 6.7 1.3  19 |1.47  2 294 -0.30  6  25 -1.17 84 186| 19 43  -98 210 47  -82| 59 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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