Sequence · 2012-03-09

M 6.7 · Observed seismic cluster · 57 km NE of Isangel, Vanuatu

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 cluster16
M6+1
Analysis radius292 km
Observation window14 days
Largest secondary eventM 5.0
Quake Pulse

Sequence timeline

Within first 24 hours8
Within first 7 days12
Observed duration11.3 d
Gap from reference eventM 1.7
0 h11.3 d
Quake Pulse

Main-event impact

Shallow

41/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.757 km NE of Isangel, Vanuatu16.0 km2012-03-09 07:09:50 UTCView event →
M 4.859 km NNE of Isangel, Vanuatu10.0 km2012-03-09 07:23:18 UTCView event →
M 4.954 km N of Isangel, Vanuatu10.0 km2012-03-09 07:36:39 UTCView event →
M 4.974 km NE of Isangel, Vanuatu10.0 km2012-03-09 08:21:04 UTCView event →
M 4.861 km NE of Isangel, Vanuatu26.9 km2012-03-09 09:07:16 UTCView event →
M 4.544 km NE of Isangel, Vanuatu20.7 km2012-03-09 11:47:00 UTCView event →
M 4.749 km ENE of Isangel, Vanuatu10.0 km2012-03-09 19:37:30 UTCView event →
M 4.663 km E of Isangel, Vanuatu10.0 km2012-03-09 20:39:03 UTCView event →
M 4.782 km NNE of Port-Vila, Vanuatu263.0 km2012-03-11 16:08:06 UTCView event →
M 4.878 km N of Isangel, Vanuatu262.2 km2012-03-12 22:38:10 UTCView event →
M 4.760 km ESE of Isangel, Vanuatu36.4 km2012-03-14 03:14:59 UTCView event →
M 4.987 km WNW of Port-Vila, Vanuatu10.0 km2012-03-16 03:32:10 UTCView event →
M 4.951 km E of Isangel, Vanuatu66.6 km2012-03-16 18:46:38 UTCView event →
M 4.969 km WNW of Port-Vila, Vanuatu35.0 km2012-03-18 22:45:54 UTCView event →
M 4.9104 km W of Port-Vila, Vanuatu35.0 km2012-03-20 13:36:46 UTCView event →
M 5.016 km SSE of Isangel, Vanuatu100.5 km2012-03-20 15:05:58 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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