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Sequence · 2010-04-04

M 7.2 · Observed seismic cluster · The 2010 Sierra El Mayor, B.C., Mexico Earthquake

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.

M4.5+ events in cluster23
M6+1
Analysis radius372 km
Observation window14 days
Largest secondary eventM 5.7
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Sequence timeline

Within first 24 hours15
Within first 7 days22
Observed duration10.5 d
Gap from reference eventM 1.5
0 h10.5 d
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Main-event impact

67,834 Felt reports · PAGER RED · Shallow

100/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.2The 2010 Sierra El Mayor, B.C., Mexico Earthquake10.0 km2010-04-04 22:40:42 UTCView event →
M 5.315km SSW of Progreso, B.C., MX10.0 km2010-04-04 22:43:00 UTCView event →
M 5.712km SSW of Estacion Coahuila, B.C., MX10.0 km2010-04-04 22:50:17 UTCView event →
M 4.816km W of Alberto Oviedo Mota, B.C., MX10.0 km2010-04-04 23:09:40 UTCView event →
M 5.49km SW of Delta, B.C., MX10.0 km2010-04-04 23:15:14 UTCView event →
M 4.611km W of Alberto Oviedo Mota, B.C., MX10.0 km2010-04-04 23:17:13 UTCView event →
M 5.412km WNW of Alberto Oviedo Mota, B.C., MX10.0 km2010-04-04 23:25:07 UTCView event →
M 4.713km S of Progreso, B.C., MX10.0 km2010-04-04 23:37:33 UTCView event →
M 5.227km SSW of Estacion Coahuila, B.C., MX10.0 km2010-04-05 00:07:07 UTCView event →
M 4.611km SSE of Alberto Oviedo Mota, B.C., MX10.0 km2010-04-05 01:25:34 UTCView event →
M 4.718km W of Progreso, B.C., MX4.1 km2010-04-05 01:52:25 UTCView event →
M 4.513km SW of Delta, B.C., MX10.0 km2010-04-05 02:47:27 UTCView event →
M 5.020km ESE of Ocotillo, CA1.2 km2010-04-05 03:15:24 UTCView event →
M 4.919km ESE of Ocotillo, CA13.7 km2010-04-05 11:14:14 UTCView event →
M 4.721km ESE of Ocotillo, CA0.0 km2010-04-05 13:33:05 UTCView event →
M 4.57km WNW of Estacion Coahuila, B.C., MX10.0 km2010-04-06 01:23:00 UTCView event →
M 4.618km W of Progreso, B.C., MX4.0 km2010-04-06 04:12:21 UTCView event →
M 4.740km S of Estacion Coahuila, B.C., MX10.0 km2010-04-06 08:12:23 UTCView event →
M 4.519km ESE of Ocotillo, CA1.7 km2010-04-06 10:06:37 UTCView event →
M 5.312km SW of Alberto Oviedo Mota, B.C., MX10.0 km2010-04-08 16:44:25 UTCView event →
M 4.79km SW of Alberto Oviedo Mota, B.C., MX12.3 km2010-04-09 23:05:42 UTCView event →
M 4.520km WNW of Progreso, B.C., MX9.7 km2010-04-10 09:12:28 UTCView event →
M 4.711km S of Estacion Coahuila, B.C., MX16.6 km2010-04-15 10:20:46 UTCView event →

Interpretation

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions. Historical small-earthquake detection varies through time. Long-term comparisons are most robust at higher magnitude thresholds.

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