Historic USGS Moment Tensor Solutions
Magnitude 6.9 SAMOA ISLANDS REGION
Thursday, September 28, 2006 at 06:22:09 UTC
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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2004 04 14 01:33: 5.30 -17.848 -174.559 PDE|133.0 6.0 1.0 18 |0.96 60 310 0.06 7 209 -1.03 29 115|186 17 67 30 75 97| 88 GS
2004 04 28 11:45:17.12 -16.494 -173.041 PDE| 47.0 5.7 4.6 17 |4.24 10 215 0.63 34 312 -4.87 54 110|271 45 -141 151 63 -52| 74 GS
2004 05 03 19:33:16.38 -18.044 -172.550 PDE| 27.0 5.7 4.2 17 |4.24 41 42 -0.08 44 188 -4.16 18 296| 71 47 161 174 76 44| 96 GS
2004 05 06 15:16:22.34 -15.759 -175.071 PDE|282.0 5.7 3.9 17 |4.00 28 111 -0.13 4 203 -3.86 62 301|190 17 -104 25 73 -86| 94 GS
2004 05 16 07:50:33.47 -15.340 -173.423 PDE| 52.0 5.8 5.7 17 |5.21 75 160 0.94 9 285 -6.15 12 17|119 34 106 279 58 79| 69 GS
2004 06 04 02:38:28.00 -16.052 -173.854 PDE| 66.0 5.4 1.6 17 |1.61 53 134 0.09 9 235 -1.70 36 332|101 12 136 234 81 81| 89 GS
2004 07 01 05:43:58.43 -15.346 -173.554 PDE| 64.0 5.8 6.4 17 |7.54 48 246 -2.21 13 351 -5.33 39 92|239 14 159 350 85 77| 41 GS
2004 09 03 12:16:49.69 -15.192 -173.375 PDE| 7.0 5.6 2.7 17 |2.68 41 286 0.06 7 22 -2.74 48 119|321 8 -151 202 86 -83| 96 GS
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 5.8 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 6.0 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 5.8 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 03 19 15:02:42.67 -20.407 -174.337 PDE| 30.0 6.0 1.3 18 |1.28 68 219 -0.01 21 17 -1.27 8 110|222 42 122 2 56 65| 98 GS
2005 05 18 10:27: 6.41 -15.318 -173.240 PDE| 21.0 6.1 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 6.0 1.0 18 |1.00 30 116 0.01 8 22 -1.02 59 279|228 17 -63 20 75 -98| 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
