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Earthquake Hazards Program

Magnitude 6.6 ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA

Wednesday, April 16, 2008 at 05:54:19 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
---------------------------------------------------------------------------------------------------------------------------------------
 2000 01 02 12:58:42.30  51.447 -175.558 PDE| 32.0 5.7 5.1  17 |4.80 67 307  0.69 19  90 -5.49 13 185|299 36  124  79 61   68| 75 GS              
 2000 04 21 04:35:17.69  51.422 -178.137 PDE| 23.0 5.9 9.2  17 |9.09 67 296  0.28 17  70 -9.37 16 165|278 33  122  61 63   71| 94 GS              
 2000 05 04 14:24:25.18  51.438 -178.493 PDE| 28.0 5.6 2.8  17 |2.85 51 272 -0.08 38  74 -2.77  9 171|297 49  144  52 64   47| 94 GS              
 2000 12 03 12:55:16.70  51.666 -178.156 PDE| 39.0 5.6 3.7  17 |3.64 74 290  0.04 12  66 -3.68 11 158|262 36  110  58 57   76| 98 GS              
 2001 02 01 18:19:30.39  51.437 -177.797 PDE| 28.0 5.9 8.0  17 |8.00 62 299  0.10 19  71 -8.10 19 168|287 31  130  62 66   69| 98 GS              
 2001 04 17 21:54: 2.60  51.239 -179.780 PDE| 14.0 5.7 4.9  17 |4.82 69 330  0.19 11  92 -5.01 17 185|293 29  114  86 63   77| 92 GS              
 2001 06 14 19:48:47.85  51.160 -179.828 PDE| 11.0 6.3 3.3  18 |3.35 63 319  0.00 10  70 -3.35 25 165|276 22  118  66 70   79|100 GS              
 2001 09 21 23:56:39.42  51.786 -175.305 PDE| 34.0 5.5 2.2  17 |2.04 70 300  0.36 14  72 -2.40 15 165|274 33  116  64 61   74| 70 GS              
 2003 12 09 12:44: 1.68  51.334 -179.272 PDE| 23.0 6.1 1.6  18 |1.45 60 287  0.22 25  69 -1.68 16 167|288 36  135  57 65   63| 74 GS              
 2005 04 21 09:26: 0.40  51.306 -178.409 PDE| 22.0 5.8 6.2  17 |6.26 53 282 -0.11 26  53 -6.15 24 156|287 31  148  45 74   63| 96 GS              
 2005 08 05 00:56:53.72  51.235 -178.254 PDE| 26.0 5.6 3.7  17 |3.78 52 306 -0.10 20  65 -3.68 30 168|303 24  150  61 78   69| 95 GS              
 2006 07 01 19:34:39.61  51.063 -179.314 PDE| 20.0 5.3 1.3  17 |1.32 64 302 -0.05 15  66 -1.27 21 161|276 28  124  59 67   74| 92 GS              
 2006 07 02 16:58: 0.86  51.188 -179.387 PDE|  9.0 5.5 2.2  17 |2.23 54 324 -0.02  1  55 -2.21 36 146|241  9   96  55 81   89| 98 GS              
 2006 07 08 20:40: 0.98  51.214 -179.312 PDE| 11.0 6.6 1.1  19 |1.08 57 341 -0.01  2 248 -1.07 33 156|238 12   80  68 78   92| 98 GS              
 2006 08 26 23:40:39.47  51.331 -179.573 PDE| 24.0 5.6 3.4  17 |3.46 49 351 -0.05  3  85 -3.41 41 178|306  5  131  85 86   87| 97 GS              
 2006 08 26 23:46:18.52  51.377 -179.540 PDE| 27.0 5.7 4.0  17 |3.10 73 320  1.85 10  83 -4.96 14 176|279 32  108  78 59   79| 25 GS              
 2007 04 29 12:41:57.39  52.007 -179.972 PDE|117.0 6.2 2.6  18 |3.10 26  73 -0.91 14 336 -2.19 60 220|193 23  -51 332 72 -105| 41 GS              
 2007 07 13 21:54:43.11  51.838 -176.280 PDE| 28.0 5.9 7.6  17 |7.61 74 295 -0.11 12  72 -7.50 10 164|269 36  110  64 56   76| 97 GS              
 2007 08 02 03:21:42.82  51.307 -179.971 PDE| 21.0 6.6 1.0  19 |0.99 69 316  0.09  4  57 -1.07 20 148|246 25  100  55 65   85| 83 GS              
 2007 08 15 20:22:11.12  50.322 -177.548 PDE|                  |      5 332                    35 238|280 70  -30  21 62 -157|    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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