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Sequence · 2011-03-06

M 6.5 · Observed seismic cluster · South Sandwich Islands region

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 cluster11
M6+1
Analysis radius260 km
Observation window14 days
Largest secondary eventM 5.3
Quake Pulse

Sequence timeline

Within first 24 hours3
Within first 7 days9
Observed duration12.6 d
Gap from reference eventM 1.2
0 h12.6 d
Quake Pulse

Main-event impact

Intermediate

38/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.5South Sandwich Islands region87.7 km2011-03-06 14:32:36 UTCView event →
M 5.2South Sandwich Islands region90.0 km2011-03-06 14:38:34 UTCView event →
M 4.7South Sandwich Islands region93.5 km2011-03-06 14:46:49 UTCView event →
M 5.2South Sandwich Islands region133.4 km2011-03-07 23:35:41 UTCView event →
M 4.5South Sandwich Islands region136.4 km2011-03-09 23:43:33 UTCView event →
M 4.9South Sandwich Islands region35.0 km2011-03-11 10:02:31 UTCView event →
M 4.5South Sandwich Islands region35.0 km2011-03-11 10:40:33 UTCView event →
M 4.9South Sandwich Islands region250.6 km2011-03-12 18:28:40 UTCView event →
M 4.7South Sandwich Islands region35.6 km2011-03-13 13:22:38 UTCView event →
M 5.3South Sandwich Islands region84.9 km2011-03-17 01:00:07 UTCView event →
M 4.6South Sandwich Islands region58.1 km2011-03-19 04:34:34 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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