Sequence · 2001-05-25

M 6.7 · Observed seismic cluster · 114 km SSE of Kuril’sk, Russia

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 cluster14
M6+1
Analysis radius292 km
Observation window14 days
Largest secondary eventM 5.2
Quake Pulse

Sequence timeline

Within first 24 hours9
Within first 7 days12
Observed duration11.0 d
Gap from reference eventM 1.5
0 h11.0 d
Quake Pulse

Main-event impact

Shallow

41/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.7114 km SSE of Kuril’sk, Russia33.0 km2001-05-25 00:40:50 UTCView event →
M 4.7133 km SSE of Kuril’sk, Russia33.0 km2001-05-25 00:54:52 UTCView event →
M 4.6129 km SSE of Kuril’sk, Russia33.0 km2001-05-25 01:26:18 UTCView event →
M 5.1131 km SSE of Kuril’sk, Russia33.0 km2001-05-25 01:53:47 UTCView event →
M 4.5132 km SSE of Kuril’sk, Russia33.0 km2001-05-25 01:58:01 UTCView event →
M 5.0113 km SSE of Kuril’sk, Russia33.0 km2001-05-25 02:49:13 UTCView event →
M 5.1130 km SSE of Kuril’sk, Russia33.0 km2001-05-25 08:24:08 UTCView event →
M 4.8129 km SSE of Kuril’sk, Russia33.0 km2001-05-25 15:24:07 UTCView event →
M 4.8125 km SSE of Kuril’sk, Russia33.0 km2001-05-25 20:49:29 UTCView event →
M 4.6134 km SSE of Kuril’sk, Russia33.0 km2001-05-27 07:59:26 UTCView event →
M 5.2111 km SSE of Kuril’sk, Russia33.0 km2001-05-29 02:10:11 UTCView event →
M 4.5161 km ENE of Kuril’sk, Russia94.9 km2001-05-29 19:41:32 UTCView event →
M 4.796 km E of Shikotan, Russia33.0 km2001-06-03 08:20:27 UTCView event →
M 4.9152 km E of Kuril’sk, Russia53.3 km2001-06-05 01:45:33 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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