Historic USGS Moment Tensor Solutions

Magnitude 5.0 TONGA REGION
Wednesday, May 11, 2011 at 15:59:08 UTC

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
---------------------------------------------------------------------------------------------------------------------------------------
 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              
 2009 03 06 07:01:48.04 -15.156 -173.309 PDE|  3.0 5.8 7.1  17 |6.69 38 316  0.78 18 211 -7.48 45 101|210 86 -108 108 19  -12| 79 GS              
 2009 04 20 20:02:27.20 -15.165 -173.724 PDE| 33.0 5.4 1.8  17 |1.80 45 203 -0.05 18  93 -1.75 38 348|275 86  109  15 19   11| 94 GS              
 2009 05 13 21:31:17.98 -15.750 -173.490 PDE| 85.0 5.7 5.3  17 |4.05 26 277  1.99  3   9 -6.03 63 105|190 72  -87   0 19 -100| 34 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 08 30 14:51:32.89 -15.223 -172.571 PDE|  7.0 6.5 6.3  18 |6.99  9 211 -1.81  4 120 -5.17 79   3|117 54  -96 307 36  -82| 48 GS              
 2009 10 01 06:13:33.31 -15.387 -173.252 PDE| 11.0 5.7 4.0  17 |4.27 70 226 -0.50  1 132 -3.78 19  41|313 65   92 129 26   86| 77 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 10 14 18:00:21.77 -14.910 -174.823 PDE| 11.0 6.1 2.0  18 |1.97  7 303 -0.03 82 139 -1.95  2  34|349 86  173  79 83    4| 97 GS              
 2009 10 19 07:41:38.24 -15.437 -172.976 PDE| 10.0 5.8 5.4  17 |5.81 26  32 -0.86  0 122 -4.95 63 212|122 18  -90 302 72  -90| 70 GS              
 2009 10 19 22:49:38.41 -15.360 -172.264 PDE|                  |     15 216                    38 114|160 75  -40 262 52 -161|    GS              
 2009 11 01 21:28:58.94 -15.505 -173.753 PDE|108.0 5.8 5.9  17 |6.36 44 250 -1.08 18 359 -5.28 39 105|358 87   72 260 18  171| 66 GS              
 2009 12 25 22:04:26.98 -15.963 -173.059 PDE| 47.0 5.6 2.8  17 |2.67 41 198  0.16 38 334 -2.84 24  85|326 80   51 224 41  164| 89 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              

Latest USGS Fast Moment Tensor Solutions

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver