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Sequence · 2005-02-26

M 6.8 · Observed seismic cluster · 99 km WNW of Sinabang, Indonesia

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 cluster25
M6+1
Analysis radius308 km
Observation window14 days
Largest secondary eventM 5.3
Quake Pulse

Sequence timeline

Within first 24 hours4
Within first 7 days11
Observed duration13.9 d
Gap from reference eventM 1.5
0 h13.9 d
Quake Pulse

Main-event impact

Shallow

50/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.899 km WNW of Sinabang, Indonesia36.0 km2005-02-26 12:56:52 UTCView event →
M 4.888 km WNW of Sinabang, Indonesia50.9 km2005-02-26 13:27:13 UTCView event →
M 4.8112 km WNW of Sinabang, Indonesia30.0 km2005-02-26 17:01:18 UTCView event →
M 4.6106 km WSW of Banda Aceh, Indonesia30.0 km2005-02-27 09:00:45 UTCView event →
M 4.7120 km WSW of Banda Aceh, Indonesia47.9 km2005-02-28 09:26:28 UTCView event →
M 4.593 km NNE of Sinabang, Indonesia30.0 km2005-03-01 01:18:59 UTCView event →
M 4.9118 km WSW of Banda Aceh, Indonesia30.0 km2005-03-02 14:45:33 UTCView event →
M 4.8160 km WSW of Sinabang, Indonesia28.4 km2005-03-02 17:05:28 UTCView event →
M 4.5203 km W of Sinabang, Indonesia30.0 km2005-03-03 05:09:20 UTCView event →
M 4.8136 km WSW of Banda Aceh, Indonesia30.0 km2005-03-03 14:45:35 UTCView event →
M 4.8100 km NW of Sinabang, Indonesia26.7 km2005-03-03 17:10:21 UTCView event →
M 4.7124 km WSW of Banda Aceh, Indonesia48.1 km2005-03-05 16:15:15 UTCView event →
M 4.6off the west coast of northern Sumatra30.0 km2005-03-06 05:13:55 UTCView event →
M 4.6111 km ESE of Meulaboh, Indonesia118.5 km2005-03-08 03:51:51 UTCView event →
M 4.752 km W of Sinabang, Indonesia25.2 km2005-03-08 09:44:14 UTCView event →
M 4.561 km S of Bireun, Indonesia30.0 km2005-03-08 22:21:04 UTCView event →
M 5.0off the west coast of northern Sumatra33.7 km2005-03-09 18:27:32 UTCView event →
M 5.3off the west coast of northern Sumatra19.5 km2005-03-09 18:27:41 UTCView event →
M 4.7114 km SSW of Banda Aceh, Indonesia30.0 km2005-03-10 10:47:17 UTCView event →
M 4.8147 km W of Sinabang, Indonesia29.1 km2005-03-11 08:00:50 UTCView event →
M 4.6101 km WSW of Banda Aceh, Indonesia30.0 km2005-03-11 09:51:44 UTCView event →
M 4.6137 km W of Sinabang, Indonesia27.4 km2005-03-11 10:40:58 UTCView event →
M 4.5146 km WSW of Banda Aceh, Indonesia30.0 km2005-03-11 14:43:34 UTCView event →
M 4.6211 km W of Sinabang, Indonesia30.0 km2005-03-12 06:15:03 UTCView event →
M 4.7112 km W of Sinabang, Indonesia25.6 km2005-03-12 10:07:57 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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