Historic USGS Moment Tensor Solutions

Magnitude 5.9 TONGA
Saturday, October 08, 2011 at 08:53:14 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
---------------------------------------------------------------------------------------------------------------------------------------
 2006 12 02 09:52:13.21 -17.774 -174.314 PDE|133.0 5.8 5.8  17 |4.86 21 360  1.78 55 236 -6.64 27 101|139 55   -4 231 87 -145| 46 GS              
 2006 12 17 12:51: 8.66 -21.258 -174.472 PDE| 10.0 5.7 4.2  17 |4.40 77 298 -0.40  0 207 -4.00 13 117|207 32   89  27 58   90| 82 GS              
 2007 02 05 09:55:51.10 -20.609 -175.650 PDE| 22.0 5.7 5.3  17 |5.34 10 264 -0.15 78 109 -5.18  5 354| 39 79    4 309 86  169| 94 GS              
 2007 05 27 18:12:34.77 -20.069 -174.519 PDE| 36.0 5.6 3.1  17 |3.19 65 116 -0.17 25 304 -3.02  3 212|279 47   56 144 53  122| 89 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              
 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 26 21:19:15.58 -20.768 -173.342 PDE| 42.0 6.2 2.5  18 |2.33 68  38  0.30 18 188 -2.63  9 281| 33 39  121 176 58   68| 77 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              
 2009 03 19 18:17:40.47 -23.043 -174.660 PDE|                  |     59 168                    15 284|215 65  120 341 38   43|    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 11 02 10:47:13.24 -24.121 -175.173 PDE|  4.0 6.2 2.2  18 |2.06 10 289  0.28  4  20 -2.34 78 134|204 56  -84  13 35  -99| 76 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