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Sequence · 2012-01-15

M 6.6 · Observed seismic cluster · South Shetland Islands

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+2
Analysis radius276 km
Observation window14 days
Largest secondary eventM 6.0
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Sequence timeline

Within first 24 hours8
Within first 7 days10
Observed duration11.1 d
Gap from reference eventM 0.6
0 h11.1 d
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Main-event impact

Shallow

39/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.6South Shetland Islands8.0 km2012-01-15 13:40:19 UTCView event →
M 6.0South Shetland Islands10.0 km2012-01-15 14:21:31 UTCView event →
M 4.6South Shetland Islands10.0 km2012-01-15 16:35:24 UTCView event →
M 4.8South Shetland Islands10.0 km2012-01-15 16:44:41 UTCView event →
M 5.1South Shetland Islands10.0 km2012-01-15 18:41:09 UTCView event →
M 5.6South Shetland Islands10.0 km2012-01-16 03:59:44 UTCView event →
M 4.7South Shetland Islands10.0 km2012-01-16 04:30:57 UTCView event →
M 4.7South Shetland Islands10.0 km2012-01-16 08:19:02 UTCView event →
M 4.9South Shetland Islands10.0 km2012-01-17 20:58:55 UTCView event →
M 4.7South Shetland Islands10.0 km2012-01-18 19:45:19 UTCView event →
M 5.4Scotia Sea37.6 km2012-01-26 15:52:57 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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