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Sequence · 2005-01-01

M 6.7 · Observed seismic cluster · off the west coast of northern Sumatra

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 cluster78
M6+2
Analysis radius292 km
Observation window14 days
Largest secondary eventM 6.4
Quake Pulse

Sequence timeline

Within first 24 hours8
Within first 7 days49
Observed duration13.7 d
Gap from reference eventM 0.3
0 h13.7 d
Quake Pulse

Main-event impact

Shallow

41/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.7off the west coast of northern Sumatra11.7 km2005-01-01 06:25:44 UTCView event →
M 5.289 km SW of Banda Aceh, Indonesia28.9 km2005-01-01 10:15:24 UTCView event →
M 4.898 km WSW of Banda Aceh, Indonesia27.2 km2005-01-01 16:02:54 UTCView event →
M 5.1Nicobar Islands, India region48.7 km2005-01-01 22:23:18 UTCView event →
M 5.5Nicobar Islands, India region10.0 km2005-01-01 22:28:13 UTCView event →
M 4.8264 km W of Sabang, Indonesia30.0 km2005-01-01 23:11:22 UTCView event →
M 4.6Nicobar Islands, India region26.5 km2005-01-02 01:55:42 UTCView event →
M 4.6Nicobar Islands, India region30.0 km2005-01-02 04:11:51 UTCView event →
M 4.6282 km W of Sabang, Indonesia30.0 km2005-01-02 10:37:04 UTCView event →
M 5.397 km W of Banda Aceh, Indonesia21.0 km2005-01-02 12:12:11 UTCView event →
M 4.7148 km SSW of Banda Aceh, Indonesia30.0 km2005-01-02 15:16:25 UTCView event →
M 6.4284 km W of Sabang, Indonesia30.0 km2005-01-02 15:35:56 UTCView event →
M 4.5off the west coast of northern Sumatra30.0 km2005-01-02 15:55:02 UTCView event →
M 5.1111 km W of Banda Aceh, Indonesia47.5 km2005-01-02 19:35:25 UTCView event →
M 4.6291 km WNW of Sabang, Indonesia45.0 km2005-01-02 20:12:25 UTCView event →
M 4.5214 km WSW of Banda Aceh, Indonesia45.7 km2005-01-02 23:01:44 UTCView event →
M 5.0272 km WSW of Banda Aceh, Indonesia30.0 km2005-01-04 02:04:46 UTCView event →
M 4.8279 km NW of Sabang, Indonesia43.5 km2005-01-04 04:18:22 UTCView event →
M 5.0187 km W of Meulaboh, Indonesia30.0 km2005-01-04 12:34:01 UTCView event →
M 4.9257 km WNW of Sabang, Indonesia30.0 km2005-01-04 12:56:00 UTCView event →
M 5.0201 km WSW of Banda Aceh, Indonesia24.8 km2005-01-04 15:18:28 UTCView event →
M 5.391 km SW of Banda Aceh, Indonesia44.2 km2005-01-04 18:26:44 UTCView event →
M 5.293 km WSW of Banda Aceh, Indonesia29.5 km2005-01-04 19:08:02 UTCView event →
M 5.5282 km WSW of Meulaboh, Indonesia30.0 km2005-01-05 05:32:38 UTCView event →
M 4.795 km W of Banda Aceh, Indonesia30.0 km2005-01-05 06:10:21 UTCView event →
M 4.5Nicobar Islands, India region30.0 km2005-01-05 07:03:40 UTCView event →
M 4.8207 km WSW of Meulaboh, Indonesia31.6 km2005-01-05 12:13:18 UTCView event →
M 5.1269 km WNW of Sabang, Indonesia30.0 km2005-01-05 12:31:38 UTCView event →
M 5.363 km W of Banda Aceh, Indonesia30.0 km2005-01-05 14:34:31 UTCView event →
M 5.9104 km W of Banda Aceh, Indonesia48.8 km2005-01-05 14:54:04 UTCView event →
M 4.6116 km SSW of Banda Aceh, Indonesia30.0 km2005-01-05 19:01:58 UTCView event →
M 4.5123 km SW of Banda Aceh, Indonesia30.0 km2005-01-05 22:11:15 UTCView event →
M 5.5231 km W of Banda Aceh, Indonesia30.0 km2005-01-06 00:11:17 UTCView event →
M 4.8Nicobar Islands, India region31.6 km2005-01-06 00:26:01 UTCView event →
M 5.4Nicobar Islands, India region6.7 km2005-01-06 00:29:08 UTCView event →
M 5.760 km WSW of Banda Aceh, Indonesia49.5 km2005-01-06 00:56:29 UTCView event →
M 4.774 km WSW of Banda Aceh, Indonesia30.0 km2005-01-06 01:10:02 UTCView event →
M 4.5223 km W of Sabang, Indonesia30.0 km2005-01-06 02:07:04 UTCView event →
M 5.3Nicobar Islands, India region30.0 km2005-01-06 04:52:42 UTCView event →
M 4.8193 km WSW of Banda Aceh, Indonesia30.0 km2005-01-06 19:17:46 UTCView event →
M 4.789 km WSW of Banda Aceh, Indonesia30.0 km2005-01-07 01:59:36 UTCView event →
M 4.6272 km WSW of Meulaboh, Indonesia26.0 km2005-01-07 05:21:47 UTCView event →
M 4.8220 km W of Sabang, Indonesia29.6 km2005-01-07 07:59:29 UTCView event →
M 4.5218 km W of Banda Aceh, Indonesia30.7 km2005-01-07 10:41:48 UTCView event →
M 4.796 km W of Banda Aceh, Indonesia56.3 km2005-01-07 15:35:04 UTCView event →
M 4.581 km SW of Banda Aceh, Indonesia30.0 km2005-01-07 16:00:23 UTCView event →
M 4.7195 km W of Sabang, Indonesia29.8 km2005-01-07 18:50:21 UTCView event →
M 4.6106 km W of Banda Aceh, Indonesia30.0 km2005-01-08 00:46:09 UTCView event →
M 5.196 km SW of Banda Aceh, Indonesia30.0 km2005-01-08 05:58:21 UTCView event →
M 4.8281 km WSW of Meulaboh, Indonesia30.0 km2005-01-08 06:50:59 UTCView event →
M 4.7off the west coast of northern Sumatra0.7 km2005-01-08 10:21:53 UTCView event →
M 5.2off the west coast of northern Sumatra30.1 km2005-01-08 14:59:36 UTCView event →
M 4.8Nicobar Islands, India region30.0 km2005-01-08 17:44:20 UTCView event →
M 4.8107 km SSW of Banda Aceh, Indonesia30.0 km2005-01-08 22:11:57 UTCView event →
M 5.3Nicobar Islands, India region30.0 km2005-01-09 01:59:13 UTCView event →
M 4.8102 km WSW of Banda Aceh, Indonesia48.5 km2005-01-09 03:02:53 UTCView event →
M 4.6203 km W of Banda Aceh, Indonesia30.0 km2005-01-09 08:09:39 UTCView event →
M 4.8233 km WSW of Banda Aceh, Indonesia30.0 km2005-01-09 08:40:24 UTCView event →
M 4.5137 km WSW of Banda Aceh, Indonesia30.0 km2005-01-11 14:21:29 UTCView event →
M 5.080 km SW of Banda Aceh, Indonesia30.0 km2005-01-11 21:46:34 UTCView event →
M 4.5206 km WSW of Banda Aceh, Indonesia28.9 km2005-01-12 08:16:11 UTCView event →
M 4.778 km WSW of Banda Aceh, Indonesia30.0 km2005-01-12 12:59:22 UTCView event →
M 5.478 km W of Banda Aceh, Indonesia29.9 km2005-01-12 13:58:18 UTCView event →
M 4.7Nicobar Islands, India region30.0 km2005-01-12 14:03:40 UTCView event →
M 5.180 km SW of Banda Aceh, Indonesia35.9 km2005-01-12 18:44:41 UTCView event →
M 4.6277 km WSW of Meulaboh, Indonesia30.0 km2005-01-12 20:12:50 UTCView event →
M 4.8Nicobar Islands, India region34.4 km2005-01-13 07:28:36 UTCView event →
M 4.7106 km W of Banda Aceh, Indonesia30.0 km2005-01-13 08:52:43 UTCView event →
M 4.6Nicobar Islands, India region30.0 km2005-01-13 09:23:50 UTCView event →
M 4.5288 km W of Sabang, Indonesia30.0 km2005-01-13 09:57:23 UTCView event →
M 4.8198 km WSW of Meulaboh, Indonesia30.0 km2005-01-13 11:31:45 UTCView event →
M 4.599 km WSW of Banda Aceh, Indonesia30.0 km2005-01-13 18:09:12 UTCView event →
M 4.5245 km W of Sabang, Indonesia30.0 km2005-01-13 21:21:43 UTCView event →
M 4.5off the west coast of northern Sumatra30.0 km2005-01-14 00:35:14 UTCView event →
M 4.5176 km WSW of Banda Aceh, Indonesia30.0 km2005-01-14 07:05:21 UTCView event →
M 4.7267 km WSW of Banda Aceh, Indonesia31.1 km2005-01-14 14:34:28 UTCView event →
M 5.6269 km WSW of Meulaboh, Indonesia22.0 km2005-01-14 21:38:16 UTCView event →
M 4.7100 km SSW of Banda Aceh, Indonesia40.4 km2005-01-14 22:51:21 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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