Sequence · 2012-12-21

M 6.7 · Observed seismic cluster · 59 km SSW of Sola, 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 cluster4
M6+1
Analysis radius292 km
Observation window14 days
Largest secondary eventM 5.2
Quake Pulse

Sequence timeline

Within first 24 hours1
Within first 7 days4
Observed duration6.9 d
Gap from reference eventM 1.5
0 h6.9 d
Quake Pulse

Main-event impact

Intermediate

45/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.759 km SSW of Sola, Vanuatu200.7 km2012-12-21 22:28:08 UTCView event →
M 5.299 km NNW of Sola, Vanuatu224.0 km2012-12-23 00:29:56 UTCView event →
M 4.5198 km NNW of Sola, Vanuatu258.7 km2012-12-23 09:47:28 UTCView event →
M 4.959 km SSW of Sola, Vanuatu199.8 km2012-12-28 20:16:25 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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