Sequence · 2003-07-15

M 6.5 · Observed seismic cluster · 41 km N of Rabaul, 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 cluster8
M6+1
Analysis radius260 km
Observation window14 days
Largest secondary eventM 5.1
Quake Pulse

Sequence timeline

Within first 24 hours2
Within first 7 days5
Observed duration12.5 d
Gap from reference eventM 1.4
0 h12.5 d
Quake Pulse

Main-event impact

Shallow

44/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.541 km N of Rabaul, Papua New Guinea33.0 km2003-07-15 18:46:38 UTCView event →
M 4.534 km N of Rabaul, Papua New Guinea33.0 km2003-07-15 19:53:11 UTCView event →
M 4.651 km ESE of Kokopo, Papua New Guinea47.5 km2003-07-18 05:37:01 UTCView event →
M 4.6122 km SW of Kokopo, Papua New Guinea33.0 km2003-07-18 22:56:44 UTCView event →
M 4.6174 km ESE of Kokopo, Papua New Guinea33.0 km2003-07-20 11:46:55 UTCView event →
M 5.1205 km SE of Kokopo, Papua New Guinea46.9 km2003-07-25 15:37:51 UTCView event →
M 4.569 km SE of Kokopo, Papua New Guinea66.5 km2003-07-27 06:47:57 UTCView event →
M 4.633 km ENE of Rabaul, Papua New Guinea33.0 km2003-07-28 07:43:04 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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