GRAN SISMO A GRAN PROFUNDIDAD BAJO EL MAR DE OKHOTSK

Un Gran Sismo de magnitud 8.30 Mww ha tenido lugar a gran profundidad bajo el Mar de Okhotsk al Oeste de Kamtchatka. Los parámetros preliminares de este sismo son los siguientes:

FECHA / HORA (UTC) / LAT. / LONG. / PROFUNDIDAD / MAGNITUD
20130524   054449.62    54.87    153.28          609 Kms. 8.30 Mww

Lo que hace de especial este Gran Sismo son dos particularidades. La primera, que fue precedido por un enjambre de 73 sismos de magnitud mayor que 4.0 mbGS  en los 5 días anteriores y a unos 250 Kms hacia arriba en la placa de subducción. La segunda particularidad, es que se trata del segundo Gran Sismo que alzanza esta magnitud a esta gran profundidad y que además sobrepasa la magnitud alcanzada por el único otro registro que es el del Gran Sismo de Bolivia (19940609 00:33:16.23 -13.84  -67.55  631 Kms. 8.20 mw)

A continuación se copian los parámetros del Gran Sismo y sus precesores)

DATE_TIME LAT LON DEP MAG MT SC
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2013-05-24 05:44:49.62 54.874 153.280 608.9 8.3 Mww us
2013-05-23 10:47:09.46 52.967 159.796 61.9 4.4 mb us
2013-05-23 09:57:54.01 53.012 159.581 72.5 4.5 mb us
2013-05-22 16:56:01.73 52.501 160.644 40.7 4.6 mb us
2013-05-22 13:49:00.15 52.785 160.486 50.5 4.6 mb us
2013-05-22 06:36:37.56 52.991 159.921 32.2 4.9 mb us
2013-05-21 19:37:41.06 52.443 159.579 19.1 4.9 mb us
2013-05-21 18:01:55.28 52.452 160.154 37.9 4.5 mb us
2013-05-21 17:42:19.62 52.368 159.840 48.1 4.9 mb us
2013-05-21 17:13:36.03 52.494 160.452 47.0 4.5 mb us
2013-05-21 15:53:24.92 52.602 160.632 38.7 4.5 mb us
2013-05-21 14:51:20.06 52.549 160.617 41.2 5.3 mb us
2013-05-21 13:23:29.96 52.863 158.705 92.0 4.6 mb us
2013-05-21 12:39:32.84 52.373 160.528 41.6 4.7 mb us
2013-05-21 10:21:02.66 52.327 160.404 47.2 4.8 mb us
2013-05-21 10:00:08.13 52.659 159.873 66.8 4.8 mb us
2013-05-21 08:15:16.42 52.362 160.398 48.6 4.8 mb us
2013-05-21 07:06:48.89 52.089 159.911 52.4 4.7 mb us
2013-05-21 07:02:26.71 52.358 159.929 56.2 4.9 mb us
2013-05-21 06:20:19.30 52.606 159.790 52.0 4.6 mb us
2013-05-21 06:07:54.26 52.392 159.957 61.8 4.7 mb us
2013-05-21 06:03:39.65 52.284 160.094 55.1 4.6 mb us
2013-05-21 05:43:21.63 52.307 159.986 36.7 6.0 Mwb us
2013-05-21 04:59:37.47 52.325 160.023 37.1 6.0 Mwp us
2013-05-21 04:24:07.46 52.335 160.419 28.5 5.0 mb us
2013-05-21 03:08:22.35 52.492 159.985 44.1 5.9 Mwp us
2013-05-21 03:05:50.74 52.370 160.357 14.4 5.5 mb us
2013-05-21 02:02:45.62 52.429 160.422 44.2 4.9 mb us
2013-05-21 01:55:05.64 52.469 160.486 15.1 6.0 Mwp us
2013-05-21 00:01:16.95 52.957 158.949 93.7 4.6 mb us
2013-05-20 23:01:25.48 52.426 160.223 17.4 5.3 mb us
2013-05-20 22:51:47.12 52.425 160.127 43.8 4.8 mb us
2013-05-20 22:36:27.31 52.470 160.195 40.0 4.6 mb us
2013-05-20 20:13:54.89 52.319 160.315 32.2 5.0 mb us
2013-05-20 18:08:48.58 52.340 160.452 40.1 4.7 mb us
2013-05-20 14:27:39.51 52.495 159.057 83.6 4.3 mb us
2013-05-20 14:12:43.56 52.308 160.467 45.0 4.8 mb us
2013-05-20 13:57:04.17 52.283 160.096 52.8 4.7 mb us
2013-05-20 12:43:33.69 52.240 160.402 30.5 4.7 mb us
2013-05-20 10:54:24.00 52.510 160.023 43.8 4.7 mb us
2013-05-20 03:42:39.52 52.289 160.216 49.0 4.7 mb us
2013-05-20 03:38:50.30 51.611 160.464 15.1 4.6 mb us
2013-05-20 01:33:33.98 52.972 158.941 84.3 4.6 mb us
2013-05-20 01:07:39.22 52.415 160.119 42.6 5.1 mb us
2013-05-20 00:22:13.78 52.432 160.183 30.2 4.9 mb us
2013-05-20 00:13:17.15 52.305 160.170 33.2 5.3 mb us
2013-05-20 00:05:07.32 52.418 160.048 60.1 4.8 mb us
2013-05-19 23:58:15.76 52.383 159.952 58.8 5.0 mb us
2013-05-19 23:51:35.30 52.365 159.987 49.7 5.2 mb us
2013-05-19 23:50:24.79 52.748 159.112 70.2 5.1 mb us
2013-05-19 23:33:54.69 52.886 159.265 78.2 4.5 mb us
2013-05-19 22:38:50.44 52.359 160.217 40.1 5.0 mb us
2013-05-19 21:12:55.62 52.267 160.010 58.0 4.8 mb us
2013-05-19 21:05:17.04 52.352 160.088 43.3 5.1 mb us
2013-05-19 20:20:12.69 52.410 159.993 43.6 5.1 mb us
2013-05-19 20:07:02.36 52.834 159.200 86.2 4.6 mb us
2013-05-19 19:53:18.83 52.706 158.837 92.7 5.1 mb us
2013-05-19 19:51:28.55 52.434 160.143 54.1 5.1 mb us
2013-05-19 19:43:22.55 52.404 160.098 52.5 5.0 mb us
2013-05-19 19:37:30.47 52.453 160.198 48.6 4.9 mb us
2013-05-19 19:21:28.05 52.380 160.095 54.3 5.1 mb us
2013-05-19 19:05:55.25 52.261 160.862 23.0 4.6 mb us
2013-05-19 18:44:10.74 52.278 160.090 16.5 5.9 mb us
2013-05-19 18:41:16.46 52.370 160.103 44.1 5.1 mb us
2013-05-19 18:33:00.49 52.337 160.239 53.8 4.8 mb us
2013-05-19 18:32:58.29 52.271 160.059 37.8 4.8 mb us
2013-05-19 17:47:31.41 52.582 159.573 59.7 4.7 mb us
2013-05-19 17:44:45.46 52.425 160.318 40.3 5.1 mb us
2013-05-19 15:58:44.62 52.366 160.114 61.2 4.6 mb us
2013-05-19 15:45:23.89 52.360 160.173 44.6 4.7 mb us
2013-05-19 14:45:32.64 52.395 160.036 68.4 4.5 mb us
2013-05-19 12:24:51.86 54.113 168.571 32.2 4.4 mb us
2013-05-19 10:18:27.83 52.313 159.942 61.6 4.3 mb us
2013-05-19 03:41:26.07 56.219 163.253 11.7 5.0 mb us

Los sismos a Gran Profundidad suelen preceder actividad mayor en la zona de subducción a la cual pertenecen, en este caso la Zona de Subducción Kuril-Kamchatka al oeste de Alaska.