They are much more frequent.
33rd major aftershock, magnitude 5.5, centered off Bio-Bio shore of #Chile - U.S. Geological Survey
MAP 5.5 2010/02/27 16:37:34 -37.509 -73.605 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.2 2010/02/27 16:32:21 -34.986 -72.356 35.0 OFFSHORE MAULE, CHILE
MAP 5.5 2010/02/27 16:27:57 -37.820 -73.404 35.0 BIO-BIO, CHILE
MAP 5.5 2010/02/27 16:21:13 -38.266 -73.434 35.0 BIO-BIO, CHILE
MAP 6.3 2010/02/27 15:45:41 -24.588 -65.432 38.2 SALTA, ARGENTINA
MAP 5.1 2010/02/27 15:23:05 -34.528 -74.987 35.0 OFF COAST OF LIBERTADOR O’HIGGINS, CHILE
MAP 5.2 2010/02/27 15:09:08 -33.890 -71.268 35.0 REGION METROPOLITANA, CHILE
MAP 5.0 2010/02/27 14:40:53 -31.321 -74.548 35.0 OFF THE COAST OF COQUIMBO, CHILE
MAP 4.9 2010/02/27 14:29:09 -35.028 -71.714 35.0 MAULE, CHILE
MAP 5.2 2010/02/27 14:23:27 -34.505 -72.596 35.0 OFFSHORE LIBERTADOR O’HIGGINS, CHILE
MAP 5.0 2010/02/27 14:20:00 -37.274 -73.062 35.0 BIO-BIO, CHILE
MAP 5.0 2010/02/27 14:06:47 -37.288 -72.835 35.0 BIO-BIO, CHILE
MAP 5.2 2010/02/27 13:54:04 -33.269 -71.834 35.0 OFFSHORE VALPARAISO, CHILE
MAP 5.0 2010/02/27 13:12:52 -35.014 -71.660 35.0 MAULE, CHILE
MAP 5.5 2010/02/27 12:03:27 -34.399 -73.825 35.0 OFF COAST OF LIBERTADOR O’HIGGINS, CHILE
MAP 5.4 2010/02/27 11:45:03 -36.318 -73.216 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.3 2010/02/27 11:27:00 -38.103 -73.587 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.4 2010/02/27 10:54:23 -36.828 -73.336 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.9 2010/02/27 10:38:35 -38.019 -73.575 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.9 2010/02/27 10:30:34 -33.559 -72.636 35.0 OFFSHORE VALPARAISO, CHILE
MAP 5.8 2010/02/27 09:59:21 -37.991 -73.467 35.0 BIO-BIO, CHILE
MAP 5.1 2010/02/27 09:21:25 -36.609 -73.218 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.6 2010/02/27 09:00:17 -33.425 -71.625 35.0 VALPARAISO, CHILE
MAP 5.3 2010/02/27 08:53:56 -34.447 -73.397 35.0 OFF COAST OF LIBERTADOR O’HIGGINS, CHILE
MAP 5.0 2010/02/27 08:53:26 -35.073 -71.760 35.0 MAULE, CHILE
MAP 5.6 2010/02/27 08:48:05 -38.584 -75.257 35.0 OFF THE COAST OF ARAUCANIA, CHILE
MAP 5.7 2010/02/27 08:31:04 -34.820 -72.443 35.0 OFFSHORE MAULE, CHILE
MAP 6.1 2010/02/27 08:25:29 -34.750 -72.394 35.0 OFFSHORE MAULE, CHILE
MAP 5.5 2010/02/27 08:19:23 -33.479 -71.574 35.0 VALPARAISO, CHILE
MAP 5.6 2010/02/27 08:13:16 -33.062 -71.702 35.0 OFFSHORE VALPARAISO, CHILE
MAP 6.9 2010/02/27 08:01:24 -37.654 -75.199 39.0 OFF THE COAST OF BIO-BIO, CHILE
MAP 5.4 2010/02/27 07:59:55 -36.050 -73.562 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.2 2010/02/27 07:56:37 -36.933 -73.240 35.0 OFFSHORE BIO-BIO, CHILE
MAP 5.4 2010/02/27 07:51:05 -36.399 -72.498 35.0 BIO-BIO, CHILE
MAP 5.4 2010/02/27 07:46:49 -36.795 -72.924 35.0 BIO-BIO, CHILE
MAP 6.0 2010/02/27 07:37:18 -36.837 -72.541 35.0 BIO-BIO, CHILE
MAP 5.6 2010/02/27 07:33:31 -38.007 -73.484 35.7 OFFSHORE BIO-BIO, CHILE
MAP 5.4 2010/02/27 07:19:48 -35.811 -72.945 35.0 OFFSHORE MAULE, CHILE
MAP 6.0 2010/02/27 07:12:28 -33.807 -71.913 35.0 OFFSHORE VALPARAISO, CHILE
MAP 6.2 2010/02/27 06:52:35 -34.735 -72.638 35.0 OFFSHORE MAULE, CHILE
MAP 8.8 2010/02/27 06:34:14 -35.846 -72.719 35.0 OFFSHORE MAULE, CHILE