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Sequence · 2015-11-08

M 6.6 · Observed seismic cluster · Nicobar Islands, India 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 cluster22
M6+1
Analysis radius276 km
Observation window14 days
Largest secondary eventM 5.6
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Sequence timeline

Within first 24 hours16
Within first 7 days22
Observed duration6.9 d
Gap from reference eventM 1.0
0 h6.9 d
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Main-event impact

7 Felt reports · PAGER GREEN · Shallow

50/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.6Nicobar Islands, India region10.0 km2015-11-08 16:47:02 UTCView event →
M 5.2130 km NNW of Sabang, Indonesia10.0 km2015-11-08 16:59:20 UTCView event →
M 4.5151 km NNW of Sabang, Indonesia10.0 km2015-11-08 17:12:40 UTCView event →
M 4.7115 km NNW of Sabang, Indonesia10.0 km2015-11-08 17:46:51 UTCView event →
M 4.6142 km NW of Sabang, Indonesia10.0 km2015-11-08 18:48:44 UTCView event →
M 4.5128 km NW of Sabang, Indonesia10.0 km2015-11-08 19:10:52 UTCView event →
M 5.6148 km NW of Sabang, Indonesia10.0 km2015-11-08 19:14:47 UTCView event →
M 4.7156 km NNW of Sabang, Indonesia10.0 km2015-11-08 20:30:07 UTCView event →
M 4.8146 km NW of Sabang, Indonesia10.0 km2015-11-08 20:59:39 UTCView event →
M 5.384 km NW of Sabang, Indonesia11.8 km2015-11-09 06:12:13 UTCView event →
M 4.7106 km NW of Sabang, Indonesia10.0 km2015-11-09 07:02:56 UTCView event →
M 4.698 km NNW of Sabang, Indonesia10.0 km2015-11-09 07:05:13 UTCView event →
M 4.8104 km NW of Sabang, Indonesia12.6 km2015-11-09 07:07:44 UTCView event →
M 4.994 km NW of Sabang, Indonesia10.0 km2015-11-09 07:13:27 UTCView event →
M 4.799 km NW of Sabang, Indonesia10.0 km2015-11-09 07:28:00 UTCView event →
M 5.580 km NW of Sabang, Indonesia10.0 km2015-11-09 08:12:46 UTCView event →
M 4.5142 km NW of Sabang, Indonesia10.0 km2015-11-10 15:59:33 UTCView event →
M 4.586 km WNW of Sabang, Indonesia10.0 km2015-11-10 17:22:44 UTCView event →
M 4.5143 km NW of Sabang, Indonesia10.0 km2015-11-12 22:34:55 UTCView event →
M 5.3135 km NW of Sabang, Indonesia10.0 km2015-11-14 16:53:31 UTCView event →
M 4.6137 km NW of Sabang, Indonesia10.0 km2015-11-15 13:07:45 UTCView event →
M 4.5167 km NW of Sabang, Indonesia9.2 km2015-11-15 14:49:39 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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