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Sequence · 2013-09-30

M 6.5 · Observed seismic cluster · Kermadec Islands, New Zealand

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 cluster10
M6+2
Analysis radius260 km
Observation window14 days
Largest secondary eventM 6.2
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Sequence timeline

Within first 24 hours5
Within first 7 days8
Observed duration12.4 d
Gap from reference eventM 0.3
0 h12.4 d
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Main-event impact

PAGER GREEN · Tsunami indicator · Shallow

52/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.5Kermadec Islands, New Zealand41.5 km2013-09-30 05:55:55 UTCView event →
M 4.8Kermadec Islands, New Zealand40.2 km2013-09-30 06:29:44 UTCView event →
M 4.6Kermadec Islands, New Zealand34.9 km2013-09-30 06:52:21 UTCView event →
M 4.7Kermadec Islands, New Zealand35.0 km2013-09-30 07:10:47 UTCView event →
M 4.5Kermadec Islands, New Zealand35.0 km2013-09-30 07:34:32 UTCView event →
M 5.1Kermadec Islands, New Zealand189.1 km2013-10-03 17:32:42 UTCView event →
M 5.1Kermadec Islands, New Zealand34.6 km2013-10-04 08:31:55 UTCView event →
M 5.0Kermadec Islands, New Zealand9.6 km2013-10-05 14:35:16 UTCView event →
M 6.2Kermadec Islands, New Zealand151.0 km2013-10-11 21:25:00 UTCView event →
M 4.7Kermadec Islands, New Zealand55.2 km2013-10-12 15:49:14 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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