Historic USGS Moment Tensor Solutions
Magnitude 4.7 TONGA
Saturday, October 22, 2011 at 05:24:37 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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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 07 19 22:39:52.70 -17.337 -177.312 PDE|384.0 6.3 3.4 18 |3.26 16 211 0.31 16 306 -3.58 65 79|135 64 -71 278 32 -123| 83 GS
2008 10 09 17:49:58.60 -21.030 -174.420 PDE| 9.0 5.7 4.0 17 |4.24 73 273 -0.66 6 25 -3.59 14 116| 22 60 83 216 31 102| 69 GS
2008 10 19 05:10:33.91 -21.863 -173.819 PDE| 35.0 6.8 2.2 19 |2.21 77 37 -0.01 12 200 -2.20 3 290|190 50 74 34 43 108| 99 GS
2008 10 19 12:55: 5.69 -21.972 -173.700 PDE| 12.0 5.5 2.5 17 |2.80 11 307 -0.69 7 215 -2.12 76 91|210 57 -99 47 34 -76| 51 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 29 05:59:16.58 -18.701 -177.716 PDE|386.0 5.9 8.9 17 |9.32 46 235 -0.84 31 105 -8.47 26 357|293 79 123 39 34 20| 82 GS
2009 02 11 09:31: 4.47 -20.775 -177.298 PDE| 14.0 5.5 2.3 17 |2.54 3 351 -0.77 86 162 -1.77 0 261| 36 87 178 126 88 3| 39 GS
2009 03 19 18:17:40.47 -23.043 -174.660 PDE| | 59 168 15 284|215 65 120 341 38 43| GS
2009 04 14 23:29:33.35 -16.308 -177.732 PDE| 1.0 5.9 8.0 17 |8.95 38 267 -2.28 38 136 -6.66 27 21|322 83 129 60 40 11| 49 GS
2009 05 17 06:23: 3.54 -16.825 -173.491 PDE| 67.0 5.6 2.9 17 |2.77 20 213 0.27 27 314 -3.04 55 92|145 70 -61 267 35 -144| 82 GS
2009 07 30 20:05:35.65 -20.849 -174.256 PDE| | 50 300 40 120| 30 85 90 210 5 90| GS
2009 10 02 01:07:39.26 -16.335 -173.471 PDE| 5.0 6.0 1.4 18 |1.25 14 228 0.34 27 326 -1.59 58 113|160 65 -60 287 39 -137| 57 GS
2009 10 04 09:10:31.61 -16.231 -173.240 PDE| 23.0 5.4 1.7 17 |1.77 52 278 -0.21 7 19 -1.55 36 115| 18 82 82 242 12 133| 76 GS
2009 10 04 17:09:53.16 -16.352 -173.255 PDE| 25.0 5.3 1.2 17 |1.33 56 267 -0.31 6 167 -1.03 32 73|349 78 97 140 14 62| 53 GS
2009 12 11 12:33:39.04 -21.056 -174.448 PDE| 11.0 5.6 2.8 17 |2.21 80 47 0.89 8 209 -3.09 2 299| 39 43 103 202 48 78| 42 GS
2009 12 26 21:23:27.30 -17.299 -176.941 PDE| 17.0 5.5 2.1 17 |1.85 12 280 0.40 75 74 -2.25 6 189| 55 85 13 324 77 175| 64 GS
2010 02 13 02:34:28.86 -21.902 -174.767 PDE| 11.0 6.1 1.6 18 |1.30 67 255 0.47 18 35 -1.76 13 130| 25 61 69 243 35 123| 47 GS
2010 02 22 05:08:49.03 -21.511 -173.778 PDE| 29.0 5.7 3.9 17 |3.29 70 67 1.03 7 177 -4.31 18 269| 11 28 105 174 64 82| 52 GS
Latest USGS Fast Moment Tensor Solutions
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
