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Sequence · 2003-09-27

M 7.3 · Observed seismic cluster · 29 km S of Aktash, 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 cluster52
M6+3
Analysis radius388 km
Observation window14 days
Largest secondary eventM 6.7
Quake Pulse

Sequence timeline

Within first 24 hours20
Within first 7 days46
Observed duration12.2 d
Gap from reference eventM 0.6
0 h12.2 d
Quake Pulse

Main-event impact

Shallow

55/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.329 km S of Aktash, Russia16.0 km2003-09-27 11:33:25 UTCView event →
M 5.345 km SSE of Aktash, Russia10.0 km2003-09-27 11:58:06 UTCView event →
M 4.723 km SSW of Aktash, Russia10.0 km2003-09-27 12:16:01 UTCView event →
M 4.634 km SSE of Aktash, Russia10.0 km2003-09-27 12:42:51 UTCView event →
M 4.928 km W of Kosh-Agach, Russia10.0 km2003-09-27 13:03:07 UTCView event →
M 5.429 km SSE of Aktash, Russia10.0 km2003-09-27 13:16:43 UTCView event →
M 4.644 km SSE of Aktash, Russia10.0 km2003-09-27 13:38:01 UTCView event →
M 5.135 km SSE of Aktash, Russia10.0 km2003-09-27 13:38:37 UTCView event →
M 5.026 km SSE of Aktash, Russia10.0 km2003-09-27 15:31:21 UTCView event →
M 4.936 km W of Kosh-Agach, Russia10.0 km2003-09-27 15:49:05 UTCView event →
M 4.525 km SSE of Aktash, Russia10.0 km2003-09-27 15:53:38 UTCView event →
M 4.627 km W of Kosh-Agach, Russia10.0 km2003-09-27 16:20:05 UTCView event →
M 4.727 km WSW of Kosh-Agach, Russia10.0 km2003-09-27 16:52:58 UTCView event →
M 6.423 km S of Aktash, Russia10.0 km2003-09-27 18:52:46 UTCView event →
M 5.332 km SSE of Aktash, Russia10.0 km2003-09-27 20:30:23 UTCView event →
M 4.624 km W of Kosh-Agach, Russia10.0 km2003-09-27 21:10:17 UTCView event →
M 4.539 km SE of Aktash, Russia10.0 km2003-09-28 03:19:32 UTCView event →
M 4.742 km WSW of Kosh-Agach, Russia10.0 km2003-09-28 03:27:07 UTCView event →
M 4.632 km SE of Aktash, Russia10.0 km2003-09-28 08:40:54 UTCView event →
M 4.639 km W of Kosh-Agach, Russia10.0 km2003-09-28 11:09:06 UTCView event →
M 4.527 km SE of Aktash, Russia10.0 km2003-09-28 11:43:42 UTCView event →
M 4.521 km S of Aktash, Russia10.0 km2003-09-28 15:03:36 UTCView event →
M 4.938 km WNW of Kosh-Agach, Russia10.0 km2003-09-28 19:43:32 UTCView event →
M 4.522 km NNW of Kosh-Agach, Russia10.0 km2003-09-28 20:12:17 UTCView event →
M 4.531 km W of Kosh-Agach, Russia10.0 km2003-09-29 02:17:49 UTCView event →
M 4.714 km SSE of Aktash, Russia10.0 km2003-09-29 06:51:13 UTCView event →
M 4.934 km SSW of Aktash, Russia10.0 km2003-09-29 09:27:03 UTCView event →
M 5.135 km SSE of Aktash, Russia10.0 km2003-09-29 15:27:01 UTCView event →
M 4.624 km S of Aktash, Russia10.0 km2003-09-29 17:05:17 UTCView event →
M 4.834 km SSE of Aktash, Russia10.0 km2003-09-29 21:28:39 UTCView event →
M 4.938 km SSE of Aktash, Russia10.0 km2003-09-30 08:27:05 UTCView event →
M 6.79 km S of Aktash, Russia10.0 km2003-10-01 01:03:25 UTCView event →
M 4.713 km ESE of Aktash, Russia10.0 km2003-10-01 02:38:19 UTCView event →
M 4.626 km WNW of Kosh-Agach, Russia10.0 km2003-10-01 03:03:10 UTCView event →
M 4.62 km NW of Aktash, Russia10.0 km2003-10-01 03:17:32 UTCView event →
M 5.032 km SSE of Aktash, Russia10.0 km2003-10-01 03:58:44 UTCView event →
M 5.023 km SSW of Aktash, Russia10.0 km2003-10-01 05:44:04 UTCView event →
M 4.66 km ESE of Aktash, Russia10.0 km2003-10-01 08:09:10 UTCView event →
M 4.522 km NW of Aktash, Russia10.0 km2003-10-02 01:46:14 UTCView event →
M 4.616 km SSE of Aktash, Russia10.0 km2003-10-02 03:12:11 UTCView event →
M 4.724 km SSW of Aktash, Russia10.0 km2003-10-02 08:03:36 UTCView event →
M 4.543 km W of Kosh-Agach, Russia10.0 km2003-10-02 08:26:30 UTCView event →
M 4.519 km W of Aktash, Russia10.0 km2003-10-03 03:16:23 UTCView event →
M 4.633 km N of Belyashi, Russia10.0 km2003-10-03 11:36:00 UTCView event →
M 4.536 km W of Kosh-Agach, Russia10.0 km2003-10-03 22:52:44 UTCView event →
M 4.635 km SE of Aktash, Russia10.0 km2003-10-04 06:14:50 UTCView event →
M 4.626 km W of Kosh-Agach, Russia10.0 km2003-10-06 05:11:26 UTCView event →
M 4.621 km SSE of Aktash, Russia10.0 km2003-10-06 17:09:00 UTCView event →
M 4.534 km WSW of Kosh-Agach, Russia10.0 km2003-10-06 18:57:03 UTCView event →
M 4.538 km SSE of Aktash, Russia10.0 km2003-10-06 22:32:23 UTCView event →
M 4.639 km SE of Aktash, Russia10.0 km2003-10-07 21:36:37 UTCView event →
M 5.025 km SSE of Aktash, Russia10.0 km2003-10-09 16:06:02 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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