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Sequence · 2025-09-19

M 6.0 · Observed seismic cluster · 98 km ESE of Ozernovskiy, 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 cluster44
M6+1
Analysis radius180 km
Observation window14 days
Largest secondary eventM 5.6
Quake Pulse · Strong sequence

What the sequence shows

After the M 6.0 reference event, Quake Pulse counts 2 M4+ event(s) in the first 24 hours and 44 in the first 7 days. Fourteen-day M4.5+ activity is about 1.7× the average equivalent derived from the previous year. The largest secondary event is M 0.4 below the reference event.

60/100Sequence score
Events in the previous 24 h14
In the first hour0
In the first 24 hours2
In the first 7 days44
Within 14 days57
Peak one-hour count4

Local historical context

Descriptive comparison with M4.5+ events observed in the same radius during the 365 days before the sequence.

M4.5+ events / 365 d893Average 14-day equivalent34.3Activity / baseline ratio1.7×

A ratio above 1 means denser M4.5+ activity than the average equivalent derived from the previous 365 days. It is not a risk measure or a forecast.

Reference event

Largest secondary eventM 5.6Magnitude gapM 0.4Observed duration14.0 d

Earlier events are shown as context only. They are not labelled precursors and should not be interpreted as predictive signals.

Evolving sequence map

Shows M4+ cluster events according to elapsed time after the reference event.

1 hour24 hours7 days14 days
98 km ESE of Ozernovskiy, Russia · 180 kmInteractive 3D view of earthquakes within 180 km of 98 km ESE of Ozernovskiy, Russia.98 km ESE of Ozernovskiy, RussiaM 4.6 · 151 km SE of Vilyuchinsk, Russia · 141.2 kmM 5.1 · 189 km SSE of Vilyuchinsk, Russia · 118.7 km
98 km ESE of Ozernovskiy, Russia180 km2 Recent earthquakes

Detailed timeline

Dots represent M4+ events retained by the sequence detector. Dot size depends on magnitude.

0 h24 h7 d14 d

Sequences are descriptive groupings based on spatial and temporal proximity. Quake Pulse does not establish a causal link between every event here and does not provide earthquake forecasts.

Quake Pulse

Main-event impact

PAGER GREEN · Shallow

35/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.098 km ESE of Ozernovskiy, Russia58.3 km2025-09-19 14:55:40 UTCView event →
M 4.6151 km SE of Vilyuchinsk, Russia43.9 km2025-09-19 19:01:10 UTCView event →
M 5.1189 km SSE of Vilyuchinsk, Russia35.7 km2025-09-20 10:18:23 UTCView event →
M 4.585 km SSW of Severo-Kuril’sk, Russia82.5 km2025-09-20 17:49:16 UTCView event →
M 5.1139 km SE of Petropavlovsk-Kamchatsky, Russia27.5 km2025-09-21 03:20:53 UTCView event →
M 4.8138 km SE of Petropavlovsk-Kamchatsky, Russia35.0 km2025-09-21 03:35:08 UTCView event →
M 4.5200 km ESE of Ozernovskiy, Russia10.0 km2025-09-21 11:07:33 UTCView event →
M 4.5102 km E of Ozernovskiy, Russia79.3 km2025-09-21 21:54:36 UTCView event →
M 4.7118 km SE of Petropavlovsk-Kamchatsky, Russia67.5 km2025-09-22 04:29:25 UTCView event →
M 4.5119 km ESE of Petropavlovsk-Kamchatsky, Russia35.0 km2025-09-22 06:44:40 UTCView event →
M 4.9176 km SSE of Vilyuchinsk, Russia35.0 km2025-09-22 07:55:49 UTCView event →
M 4.7188 km SSE of Vilyuchinsk, Russia21.6 km2025-09-22 08:05:24 UTCView event →
M 5.5173 km SSE of Vilyuchinsk, Russia17.0 km2025-09-22 16:28:54 UTCView event →
M 5.1145 km SSE of Vilyuchinsk, Russia60.5 km2025-09-22 16:32:15 UTCView event →
M 5.1164 km SSE of Vilyuchinsk, Russia22.9 km2025-09-22 17:13:41 UTCView event →
M 4.6171 km SSE of Vilyuchinsk, Russia49.9 km2025-09-22 17:51:47 UTCView event →
M 5.6172 km SSE of Vilyuchinsk, Russia17.0 km2025-09-22 18:18:53 UTCView event →
M 5.3180 km SSE of Vilyuchinsk, Russia22.1 km2025-09-22 18:46:30 UTCView event →
M 4.6140 km SSE of Vilyuchinsk, Russia35.0 km2025-09-22 19:06:29 UTCView event →
M 4.5182 km SSE of Vilyuchinsk, Russia31.2 km2025-09-22 19:23:35 UTCView event →
M 4.5204 km SSE of Vilyuchinsk, Russia10.0 km2025-09-22 19:31:35 UTCView event →
M 4.9177 km SSE of Vilyuchinsk, Russia10.0 km2025-09-22 19:41:02 UTCView event →
M 4.5148 km SSE of Vilyuchinsk, Russia35.0 km2025-09-22 20:11:46 UTCView event →
M 5.0108 km ESE of Petropavlovsk-Kamchatsky, Russia35.0 km2025-09-23 06:19:45 UTCView event →
M 4.6199 km SSE of Vilyuchinsk, Russia10.0 km2025-09-23 09:40:18 UTCView event →
M 4.6145 km SSE of Vilyuchinsk, Russia57.3 km2025-09-23 15:54:09 UTCView event →
M 4.5163 km SSE of Vilyuchinsk, Russia47.4 km2025-09-23 16:00:26 UTCView event →
M 4.5170 km SSE of Vilyuchinsk, Russia33.7 km2025-09-23 16:18:07 UTCView event →
M 4.6172 km SSE of Vilyuchinsk, Russia35.0 km2025-09-23 17:26:32 UTCView event →
M 4.6152 km SSE of Vilyuchinsk, Russia35.5 km2025-09-23 20:35:03 UTCView event →
M 4.5100 km SSW of Severo-Kuril’sk, Russia82.1 km2025-09-23 21:27:02 UTCView event →
M 4.9182 km SSE of Vilyuchinsk, Russia10.0 km2025-09-24 06:13:32 UTCView event →
M 4.6186 km SSE of Vilyuchinsk, Russia10.0 km2025-09-24 08:42:26 UTCView event →
M 4.5120 km S of Vilyuchinsk, Russia88.7 km2025-09-25 06:04:15 UTCView event →
M 5.2154 km SE of Petropavlovsk-Kamchatsky, Russia35.0 km2025-09-25 09:59:51 UTCView event →
M 4.9135 km SE of Petropavlovsk-Kamchatsky, Russia46.2 km2025-09-25 10:02:37 UTCView event →
M 4.9168 km SSE of Vilyuchinsk, Russia31.7 km2025-09-25 18:02:46 UTCView event →
M 4.7123 km SE of Petropavlovsk-Kamchatsky, Russia41.3 km2025-09-25 20:05:24 UTCView event →
M 4.6208 km SSE of Vilyuchinsk, Russia10.0 km2025-09-25 22:38:38 UTCView event →
M 4.8171 km SSE of Vilyuchinsk, Russia35.0 km2025-09-25 23:05:59 UTCView event →
M 4.6147 km E of Ozernovskiy, Russia35.0 km2025-09-25 23:13:33 UTCView event →
M 5.0194 km SSE of Vilyuchinsk, Russia10.0 km2025-09-25 23:22:37 UTCView event →
M 4.8166 km SSE of Vilyuchinsk, Russia35.0 km2025-09-26 02:51:05 UTCView event →
M 4.7140 km SE of Petropavlovsk-Kamchatsky, Russia35.0 km2025-09-26 08:20:33 UTCView event →
M 4.537 km SE of Severo-Kuril’sk, Russia77.0 km2025-09-26 13:36:51 UTCView event →
M 4.7197 km SSE of Vilyuchinsk, Russia26.6 km2025-09-27 04:02:08 UTCView event →
M 4.5208 km ESE of Ozernovskiy, Russia10.0 km2025-09-27 04:06:08 UTCView event →
M 4.680 km S of Severo-Kuril’sk, Russia86.7 km2025-09-28 02:37:24 UTCView event →
M 4.575 km ENE of Severo-Kuril’sk, Russia82.0 km2025-09-28 14:05:00 UTCView event →
M 5.0175 km SSE of Vilyuchinsk, Russia29.2 km2025-09-30 16:43:08 UTCView event →
M 4.5187 km SE of Vilyuchinsk, Russia10.0 km2025-10-02 01:37:19 UTCView event →
M 4.6202 km SSE of Vilyuchinsk, Russia40.9 km2025-10-02 08:50:14 UTCView event →
M 4.6174 km SSE of Vilyuchinsk, Russia10.0 km2025-10-02 11:39:57 UTCView event →
M 4.7181 km SE of Vilyuchinsk, Russia10.0 km2025-10-02 18:11:54 UTCView event →
M 4.6144 km E of Ozernovskiy, Russia40.9 km2025-10-03 01:59:21 UTCView event →
M 5.3155 km SE of Petropavlovsk-Kamchatsky, Russia16.5 km2025-10-03 06:16:38 UTCView event →
M 4.5140 km SE of Petropavlovsk-Kamchatsky, Russia32.5 km2025-10-03 06:58:46 UTCView event →
M 4.770 km SE of Petropavlovsk-Kamchatsky, Russia50.6 km2025-10-03 14:26:36 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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