Sequence · 2007-01-13

M 8.1 · Observed seismic cluster · 2007 Kuril Islands Earthquake

Name: M 8.1 · Observed seismic cluster · 2007 Kuril Islands Earthquake | Quake Pulse
Creator: Quake Pulse

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 cluster127

M6+2

Analysis radius516 km

Observation window14 days

Largest secondary eventM 6.0

Quake Pulse · Major sequence

What the sequence shows

After the M 8.1 reference event, Quake Pulse counts 70 M4+ event(s) in the first 24 hours and 114 in the first 7 days. Fourteen-day M4.5+ activity is about 4.9× the average equivalent derived from the previous year. The largest secondary event is M 2.1 below the reference event.

89/100Sequence score

Events in the previous 24 h1

In the first hour12

In the first 24 hours70

In the first 7 days114

Within 14 days127

Peak one-hour count12

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 d679Average 14-day equivalent26.0Activity / baseline ratio4.9×

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 6.0Magnitude gapM 2.1Observed duration13.7 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 hour 24 hours 7 days 14 days

2007 Kuril Islands Earthquake516 km12 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

59 Felt reports · Shallow

62/100

Impact and context →

M4.5+ events in cluster

Magnitude	Location	Depth	Time
M 8.1	2007 Kuril Islands Earthquake	10.0 km	2007-01-13 04:23:21 UTC	View event →
M 5.1	east of the Kuril Islands	10.0 km	2007-01-13 04:35:31 UTC	View event →
M 5.5	east of the Kuril Islands	10.0 km	2007-01-13 04:37:07 UTC	View event →
M 5.4	east of the Kuril Islands	10.0 km	2007-01-13 04:39:20 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 04:45:01 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 04:49:37 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 04:51:49 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 04:59:57 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 05:10:14 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 05:11:37 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 05:12:10 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 05:15:45 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 05:21:59 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 05:25:40 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-13 05:27:08 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-13 05:29:14 UTC	View event →
M 5.0	east of the Kuril Islands	10.0 km	2007-01-13 05:30:23 UTC	View event →
M 5.1	east of the Kuril Islands	10.0 km	2007-01-13 05:34:41 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 05:44:55 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 05:45:49 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 05:47:33 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 05:51:05 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 06:06:14 UTC	View event →
M 5.0	east of the Kuril Islands	10.0 km	2007-01-13 06:09:51 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 06:13:42 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 06:39:03 UTC	View event →
M 5.3	east of the Kuril Islands	10.0 km	2007-01-13 06:44:24 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 06:50:02 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 07:06:23 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 07:15:03 UTC	View event →
M 4.7	Kuril Islands	10.0 km	2007-01-13 08:00:53 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-13 08:14:24 UTC	View event →
M 5.3	east of the Kuril Islands	10.0 km	2007-01-13 08:20:25 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 08:24:51 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 08:29:21 UTC	View event →
M 4.7	Kuril Islands	10.0 km	2007-01-13 08:32:37 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-13 08:44:22 UTC	View event →
M 4.9	Kuril Islands	10.0 km	2007-01-13 08:55:59 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 09:05:46 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 09:12:41 UTC	View event →
M 5.8	east of the Kuril Islands	10.0 km	2007-01-13 09:18:31 UTC	View event →
M 5.4	east of the Kuril Islands	10.0 km	2007-01-13 09:37:59 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 09:56:19 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 10:19:14 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 10:56:01 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 10:58:31 UTC	View event →
M 4.9	Kuril Islands	10.0 km	2007-01-13 11:01:34 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-13 11:29:37 UTC	View event →
M 5.0	east of the Kuril Islands	10.0 km	2007-01-13 12:10:03 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 12:13:48 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 12:22:20 UTC	View event →
M 5.0	east of the Kuril Islands	10.0 km	2007-01-13 12:32:28 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 12:53:15 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 12:55:00 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 12:56:43 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 15:37:13 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 15:39:47 UTC	View event →
M 6.0	east of the Kuril Islands	10.0 km	2007-01-13 17:37:06 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 18:06:42 UTC	View event →
M 4.5	Kuril Islands	44.3 km	2007-01-13 18:17:44 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 18:33:50 UTC	View event →
M 5.4	east of the Kuril Islands	10.0 km	2007-01-13 19:37:32 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-13 20:17:47 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-13 23:16:41 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-13 23:33:25 UTC	View event →
M 5.2	east of the Kuril Islands	10.0 km	2007-01-13 23:40:11 UTC	View event →
M 5.0	east of the Kuril Islands	10.0 km	2007-01-14 00:23:42 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-14 01:04:38 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-14 01:05:06 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-14 02:27:31 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-14 02:57:51 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-14 05:22:48 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-14 05:55:27 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-14 13:16:15 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-14 14:40:04 UTC	View event →
M 4.8	286 km SSW of Severo-Kuril’sk, Russia	10.0 km	2007-01-14 15:34:06 UTC	View event →
M 5.0	east of the Kuril Islands	10.0 km	2007-01-14 15:44:05 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-14 19:32:17 UTC	View event →
M 4.6	east of the Kuril Islands	31.5 km	2007-01-14 21:16:51 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-14 21:32:51 UTC	View event →
M 4.6	Kuril Islands	10.0 km	2007-01-14 22:59:07 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-15 00:29:52 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-15 01:18:18 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-15 01:36:06 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-15 02:44:04 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-15 03:27:37 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-15 04:55:48 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-15 07:20:10 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-15 08:09:16 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-15 09:39:02 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-15 10:30:58 UTC	View event →
M 4.7	Kuril Islands	10.0 km	2007-01-16 00:08:26 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-16 05:50:59 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-16 07:23:49 UTC	View event →
M 4.7	Kuril Islands	10.0 km	2007-01-16 07:44:01 UTC	View event →
M 4.6	Kuril Islands	10.0 km	2007-01-16 08:00:21 UTC	View event →
M 4.7	178 km SSW of Severo-Kuril’sk, Russia	10.0 km	2007-01-16 08:46:09 UTC	View event →
M 5.1	east of the Kuril Islands	10.0 km	2007-01-16 19:25:51 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-16 19:48:06 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-17 00:09:33 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-17 01:24:55 UTC	View event →
M 5.2	east of the Kuril Islands	11.4 km	2007-01-17 09:45:50 UTC	View event →
M 4.7	Kuril Islands	10.0 km	2007-01-17 18:57:20 UTC	View event →
M 4.7	Kuril Islands	91.4 km	2007-01-17 20:36:18 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-17 22:41:13 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-18 03:29:12 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-18 14:03:21 UTC	View event →
M 4.6	Kuril Islands	85.5 km	2007-01-18 14:56:44 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-18 15:18:44 UTC	View event →
M 4.5	239 km SSE of Severo-Kuril’sk, Russia	10.0 km	2007-01-18 17:51:50 UTC	View event →
M 4.6	Kuril Islands	10.0 km	2007-01-18 22:24:15 UTC	View event →
M 4.5	59 km SSE of Kuril’sk, Russia	10.0 km	2007-01-19 04:24:09 UTC	View event →
M 4.9	east of the Kuril Islands	10.0 km	2007-01-19 18:54:53 UTC	View event →
M 4.6	east of the Kuril Islands	10.0 km	2007-01-19 19:15:03 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-20 03:47:22 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-21 18:02:31 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-22 08:48:20 UTC	View event →
M 5.4	Kuril Islands	10.0 km	2007-01-23 11:34:49 UTC	View event →
M 4.6	east of the Kuril Islands	26.1 km	2007-01-24 18:12:33 UTC	View event →
M 4.5	243 km SSW of Severo-Kuril’sk, Russia	10.0 km	2007-01-25 16:04:27 UTC	View event →
M 4.7	Kuril Islands	50.3 km	2007-01-25 16:20:31 UTC	View event →
M 4.8	247 km SSW of Severo-Kuril’sk, Russia	10.0 km	2007-01-25 16:32:07 UTC	View event →
M 4.9	Kuril Islands	10.0 km	2007-01-25 18:19:49 UTC	View event →
M 4.8	east of the Kuril Islands	10.0 km	2007-01-25 19:52:16 UTC	View event →
M 4.5	east of the Kuril Islands	10.0 km	2007-01-26 04:44:05 UTC	View event →
M 4.7	east of the Kuril Islands	10.0 km	2007-01-26 06:49:37 UTC	View event →
M 4.7	287 km SSW of Severo-Kuril’sk, Russia	71.1 km	2007-01-26 11:22:50 UTC	View event →
M 4.6	Kuril Islands	10.0 km	2007-01-26 21:45:44 UTC	View 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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