Sequence · 2010-08-04

M 6.5 · Observed seismic cluster · 118 km ESE of Madang, Papua New Guinea

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+2
Analysis radius260 km
Observation window14 days
Largest secondary eventM 6.3
Quake Pulse

Sequence timeline

Within first 24 hours1
Within first 7 days3
Observed duration11.3 d
Gap from reference eventM 0.2
0 h11.3 d
Quake Pulse

Main-event impact

19 Felt reports · Intermediate

48/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.5118 km ESE of Madang, Papua New Guinea220.0 km2010-08-04 07:15:33 UTCView event →
M 4.9104 km ESE of Madang, Papua New Guinea111.3 km2010-08-05 08:45:29 UTCView event →
M 4.533 km SSE of Madang, Papua New Guinea104.7 km2010-08-08 09:15:50 UTCView event →
M 6.3110 km NNE of Finschhafen, Papua New Guinea174.7 km2010-08-15 15:09:29 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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