Historic USGS Moment Tensor Solutions

Magnitude 5.0 NORTHERN MID-ATLANTIC RIDGE
Wednesday, February 20, 2013 at 13:16:09 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
---------------------------------------------------------------------------------------------------------------------------------------
 1984 11 01 04:48:50.27   8.185  -38.794 PDE| 25.0 7.1 5.0  19 |4.84  6  85  0.36 77 204 -5.20 11 354|130 78 -177  39 87  -12| 86 GS              
 1985 01 10 17:47:56.08  10.797  -43.446 PDE| 15.0 6.1 1.7  18 |1.77 11  38 -0.05 77 183 -1.71  7 306| 82 77  177 172 88   13| 94 GS              
 1988 05 20 14:58:43.53   8.116  -38.413 PDE| 36.0 6.1 1.5  18 |1.21  3 231  0.62 76 129 -1.83 13 322|  5 79   -7  97 83 -168| 32 GS              
 1991 02 10 12:42:37.60   8.745  -39.854 PDE| 21.0 6.1 1.9  18 |2.02  0 317 -0.29 85  50 -1.73  5 227|  2 87 -177 272 87   -3| 71 GS              
 1996 06 02 02:52: 9.55  10.797  -42.254 PDE| 13.0 6.8 2.1  19 |2.00  2 231  0.26 81 334 -2.26  9 140|276 82 -175 185 85   -8| 77 GS              
 1998 12 13 17:31:58.89  13.345  -44.845 PDE| 18.0 5.3 1.2  17 |1.13  7 278  0.14 14  10 -1.27 74 162|352 40 -112 200 54  -72| 78 GS              
 1999 12 17 04:03:27.89   8.069  -38.026 PDE| 26.0 5.5 2.5  17 |2.46 17 270  0.12 16   5 -2.58 66 136|337 31 -122 194 64  -72| 91 GS              
 2004 01 16 18:07:55.66   7.641  -37.704 PDE| 13.0 6.1 1.9  18 |1.73 17  61  0.40 67 198 -2.13 15 327|104 67  178 194 88   23| 62 GS              
 2004 03 08 23:39:11.34  10.480  -43.919 PDE| 18.0 6.0 1.1  18 |1.02  5  50  0.10 77 162 -1.13 12 319| 95 78 -175   4 85  -12| 82 GS              
 2004 05 11 23:58:54.41  12.702  -44.490 PDE| 18.0 5.5 2.1  17 |1.94 17  63  0.30 67 201 -2.24 14 329|106 67  178 196 88   23| 73 GS              
 2007 08 20 22:42:28.53   8.037  -39.251 PDE|                  |      4 225                    11 134|270 80 -175 179 85  -10|    GS              
 2008 02 08 09:38:14.10  10.671  -41.899 PDE|  4.0 6.8 2.0  19 |1.78  4  47  0.39 64 308 -2.16 24 139|181 69  -15 277 76 -159| 64 GS              
 2008 09 10 13:08:14.69   8.093  -38.705 PDE|  5.0 6.5 7.2  18 |7.39 14  47 -0.49 75 229 -6.90  0 137|184 79   10  92 80  169| 87 GS              

Latest USGS Fast Moment Tensor Solutions

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