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Earthquake Hazards Program

Magnitude 7.1 AMAZONAS, BRAZIL

2003 June 20 06:19:38 UTC

Preliminary Earthquake Report

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

Historical USGS Moment Tensor Solutions

Historical Moment Tensor Solutions

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
---------------------------------------------------------------------------------------------------------------------------------------
 1983 06 02 20:12:50.73  -9.512  -71.249 PDE|591.0 6.2 2.5  18 |2.42  4 239  0.21  4 149 -2.64 85  12|333 41  -84 145 49  -95| 84 GS              
 1985 05 01 13:27:56.14  -9.196  -71.230 PDE|592.0 6.6 0.9  19 |1.03 11 252 -0.20  0 342 -0.83 79  72|341 34  -90 162 56  -90| 61 GS              
 1986 03 26 22:06:57.66  -7.125  -71.638 PDE|592.0 6.3 3.1  18 |3.15 24 275 -0.13 18 176 -3.02 59  53| 38 26  -45 170 72 -109| 92 GS              
 1986 04 08 18:02:44.69  -7.946  -73.860 PDE|164.0 5.7 3.5  17 |3.52 18  60 -0.13 17 156 -3.39 65 286|125 30 -125 344 66  -71| 93 GS              
 1989 05 05 18:28:39.45  -8.281  -71.381 PDE|597.0 7.0 3.9  19 |3.93  8 235  0.00  5 326 -3.94 81  88|319 37  -98 149 53  -84|100 GS              
 1989 12 03 14:16:48.79  -7.631  -74.459 PDE|156.0 6.6 9.3  18 |9.43 14 290 -0.24 21 194 -9.18 65  50| 46 36  -53 182 62 -114| 95 GS              
 1990 10 17 14:30:13.16 -10.970  -70.776 PDE|590.0 7.0 3.6  19 |3.60  3 249  0.03  7 339 -3.63 83 134|332 42 -100 165 49  -81| 98 GS              
 1991 04 09 06:02:24.51  -9.788  -74.702 PDE|125.0 5.7 4.7  17 |5.42  2  44 -1.49  4 314 -3.93 85 167|138 43  -84 310 48  -95| 45 GS              
 1993 05 06 13:03:18.11  -8.472  -71.485 PDE|568.0 6.1 1.5  18 |1.61  4  64 -0.23 32 156 -1.38 57 328|124 50 -134   1 57  -50| 71 GS              
 1994 10 16 00:06:49.14  -9.297  -75.775 PDE|126.0 5.6 2.5  17 |2.93  0  53 -0.91 30 144 -2.02 60 323|117 52 -129 350 52  -51| 38 GS              
 1994 11 04 01:13:20.15  -9.379  -71.334 PDE|587.0 6.1 1.4  18 |1.53  2 245 -0.19  4 155 -1.33 85   4|340 43  -84 151 48  -96| 75 GS              
 1995 06 12 03:35:48.82  -8.304  -75.908 PDE| 35.0 5.4 1.3  17 |1.48 76 155 -0.29 13 348 -1.19  3 257|333 44   71 180 49  108| 61 GS              
 1996 04 24 17:06:36.38  -8.128  -74.362 PDE|152.0 5.6 2.7  17 |2.90  3 102 -0.46 27  10 -2.44 62 199|218 48  -52 348 54 -125| 68 GS              
 1997 03 25 16:44:32.61  -9.063  -71.295 PDE|601.0 6.1 1.4  18 |1.47 16 249 -0.16  1 340 -1.31 74  73|338 29  -92 160 61  -89| 78 GS              
 1998 02 19 04:21:30.53 -10.973  -74.439 PDE|  3.0 5.8 6.4  17 |6.38 74 285 -0.03 14 139 -6.35  9  47|121 38   68 329 55  106| 99 GS              
 1998 04 03 22:01:48.25  -8.148  -74.238 PDE|145.0 6.6 1.0  19 |1.03 45  60 -0.03 22 174 -0.99 37 282| 73 22  170 172 86   68| 94 GS              
 1999 12 25 18:19:30.41  -6.130  -75.271 PDE| 19.0 5.4 1.5  17 |1.60 84 148 -0.28  6 331 -1.32  0 241|325 45   82 157 46   98| 65 GS              
 2000 11 01 04:27:45.51  -7.950  -74.422 PDE|146.0 5.9 7.4  17 |7.84 45  56 -0.84 22 169 -7.00 37 277| 68 22  170 168 86   68| 79 GS              
 2001 02 21 15:20:21.39 -11.276  -74.514 PDE|  7.0 5.6 3.3  17 |3.54 42 282 -0.47 36 151 -3.06 28  40| 79 37   14 338 82  126| 73 GS              
 2001 08 06 17:08:46.33  -8.535  -75.009 PDE|127.0 5.4 1.5  17 |1.60 12  59 -0.22  1 149 -1.38 78 246|147 33  -93 330 57  -88| 73 GS              

Latest USGS Fast Moment Tensor Solutions


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