Magnitude 6.6 SAMOA ISLANDS REGION
Sunday, August 30, 2009 at 14:51:32 UTC
Historic USGS Moment Tensor Solutions
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
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2007 07 06 17:40:49.64 -16.418 -172.644 PDE| 4.0 5.7 4.6 17 |4.91 34 202 -0.68 23 308 -4.23 47 65|238 24 -162 131 83 -67| 72 GS
2007 07 28 08:53:13.50 -15.898 -175.288 PDE|325.0 5.3 1.3 17 |1.15 4 157 0.21 14 66 -1.36 75 262|261 43 -69 54 50 -108| 69 GS
2007 08 26 12:37:31.19 -17.457 -174.335 PDE| | 40 105 50 285| 15 85 -90 195 5 -90| GS
2007 08 27 17:11:59.63 -17.311 -172.249 PDE| | 25 300 65 120|210 70 -90 30 20 -90| GS
2007 11 02 12:40:10.21 -15.376 -173.165 PDE| 14.0 5.6 3.4 17 |2.22 70 301 1.65 5 196 -3.87 18 104| 19 64 96 185 27 78| 15 GS
2007 11 02 13:30:44.02 -15.593 -173.066 PDE| 14.0 5.7 4.3 17 |3.10 66 306 1.78 7 197 -4.89 21 104| 21 67 98 180 24 71| 27 GS
2007 12 13 15:51:27.21 -15.213 -172.367 PDE| 14.0 6.0 1.1 18 |1.17 0 237 -0.17 19 327 -1.01 70 145|166 49 -63 308 48 -117| 71 GS
2008 01 22 07:55:48.88 -15.277 -175.348 PDE| 6.0 5.9 9.4 17 |0.78 1 59 0.26 84 168 -1.04 5 329| 15 88 175 105 85 2| 50 GS
2008 01 22 10:49:21.80 -15.419 -175.589 PDE| 4.0 6.0 1.3 18 |1.44 0 344 -0.24 77 252 -1.20 12 74|119 81 -9 210 81 -170| 67 GS
2008 02 01 10:26: 9.82 -15.551 -175.070 PDE| 29.0 5.4 1.4 17 |1.37 31 128 0.00 58 306 -1.38 0 38|268 69 24 169 68 157|100 GS
2008 04 04 04:03: 1.60 -15.281 -172.836 PDE| 33.0 5.4 1.6 17 |1.33 47 148 0.43 38 299 -1.75 14 41|282 70 49 171 45 151| 51 GS
2008 04 15 17:24:56.48 -18.696 -175.959 PDE| 11.0 5.6 3.0 17 |2.81 21 232 0.32 61 96 -3.13 18 329|281 88 151 12 61 2| 80 GS
2008 06 02 04:19:51.21 -15.223 -173.672 PDE| 33.0 5.5 2.0 17 |1.90 52 213 0.28 10 109 -2.18 35 11|291 81 101 60 14 40| 74 GS
2008 07 07 04:44:55.64 -16.428 -174.047 PDE|116.0 5.5 2.3 17 |2.07 38 93 0.49 39 223 -2.55 27 338|218 84 51 121 40 170| 62 GS
2008 07 16 08:11: 4.00 -16.599 -172.963 PDE| 23.0 5.6 3.1 17 |2.47 75 268 1.00 13 111 -3.47 5 19|302 52 107 95 41 69| 42 GS
2008 08 19 16:30:13.21 -15.087 -173.476 PDE| 4.0 6.1 1.5 18 |1.19 35 331 0.52 29 217 -1.71 40 98|121 30 -6 216 87 -119| 39 GS
2008 09 01 07:06:16.72 -15.261 -176.413 PDE| 10.0 5.6 3.7 17 |3.93 3 159 -0.61 76 53 -3.32 13 250|294 78 -7 26 84 -168| 69 GS
2008 10 22 12:55:57.39 -18.414 -175.351 PDE|241.0 6.3 4.0 18 |4.01 27 127 0.04 9 32 -4.04 60 284|241 20 -60 30 73 -100| 98 GS
2008 11 05 03:41:43.22 -17.321 -174.362 PDE|178.0 5.7 3.8 17 |3.62 31 0 0.27 39 239 -3.89 34 115|238 89 -130 147 40 -2| 86 GS
2008 11 08 07:49:59.00 -15.223 -174.232 PDE|121.0 6.0 1.1 18 |1.05 33 139 0.05 1 230 -1.10 56 323|223 11 -98 51 79 -88| 91 GS
Latest USGS Fast Moment Tensor Solutions
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
