Sequence · 2023-01-18

M 7.0 · Observed seismic cluster · 156 km NW of Tobelo, 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 cluster92
M6+1
Analysis radius340 km
Observation window14 days
Largest secondary eventM 5.8
Quake Pulse · Major sequence

What the sequence shows

After the M 7.0 reference event, Quake Pulse counts 20 M4+ event(s) in the first 24 hours and 72 in the first 7 days. Fourteen-day M4.5+ activity is about 10.6× the average equivalent derived from the previous year. The largest secondary event is M 1.2 below the reference event.

86/100Sequence score
Events in the previous 24 h0
In the first hour4
In the first 24 hours20
In the first 7 days72
Within 14 days92
Peak one-hour count8

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 d227Average 14-day equivalent8.7Activity / baseline ratio10.6×

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 5.8Magnitude gapM 1.2Observed duration13.3 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.

Detailed timeline

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

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

9 Felt reports · PAGER GREEN · Tsunami indicator · Shallow

66/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.0156 km NW of Tobelo, Indonesia29.7 km2023-01-18 06:06:11 UTCView event →
M 5.1163 km NW of Tobelo, Indonesia35.0 km2023-01-18 06:19:13 UTCView event →
M 4.5165 km NW of Tobelo, Indonesia47.6 km2023-01-18 06:28:04 UTCView event →
M 4.6164 km NW of Tobelo, Indonesia50.4 km2023-01-18 06:52:05 UTCView event →
M 4.8148 km NW of Tobelo, Indonesia35.0 km2023-01-18 07:00:33 UTCView event →
M 4.6Molucca Sea47.4 km2023-01-18 07:20:21 UTCView event →
M 5.5144 km NW of Tobelo, Indonesia50.4 km2023-01-18 08:01:26 UTCView event →
M 4.6152 km NW of Tobelo, Indonesia67.7 km2023-01-18 09:39:07 UTCView event →
M 4.8166 km NW of Tobelo, Indonesia30.5 km2023-01-18 13:39:43 UTCView event →
M 4.5146 km NW of Tobelo, Indonesia48.8 km2023-01-18 13:55:28 UTCView event →
M 4.6156 km NW of Tobelo, Indonesia56.6 km2023-01-18 14:21:39 UTCView event →
M 4.5152 km NW of Tobelo, Indonesia54.9 km2023-01-18 15:03:33 UTCView event →
M 4.6138 km ESE of Tondano, Indonesia47.3 km2023-01-18 15:04:23 UTCView event →
M 4.6158 km NW of Tobelo, Indonesia46.5 km2023-01-18 15:14:01 UTCView event →
M 4.9167 km NW of Tobelo, Indonesia35.0 km2023-01-18 15:43:31 UTCView event →
M 4.9Molucca Sea50.0 km2023-01-18 16:06:40 UTCView event →
M 4.6163 km NW of Tobelo, Indonesia46.5 km2023-01-18 18:15:36 UTCView event →
M 4.5157 km NW of Tobelo, Indonesia60.8 km2023-01-18 18:55:38 UTCView event →
M 4.8169 km NW of Tobelo, Indonesia51.1 km2023-01-18 19:55:00 UTCView event →
M 4.6159 km NW of Tobelo, Indonesia46.4 km2023-01-18 20:57:50 UTCView event →
M 4.5152 km NW of Tobelo, Indonesia35.0 km2023-01-19 04:54:29 UTCView event →
M 4.5159 km NW of Tobelo, Indonesia52.0 km2023-01-19 07:38:34 UTCView event →
M 4.5151 km NW of Tobelo, Indonesia55.1 km2023-01-19 11:04:45 UTCView event →
M 4.5197 km NW of Tobelo, Indonesia23.6 km2023-01-19 11:54:29 UTCView event →
M 4.7Molucca Sea41.6 km2023-01-19 12:29:49 UTCView event →
M 4.8171 km NW of Tobelo, Indonesia52.2 km2023-01-19 13:00:21 UTCView event →
M 4.5Molucca Sea52.8 km2023-01-19 15:03:36 UTCView event →
M 4.7172 km NW of Tobelo, Indonesia46.3 km2023-01-19 17:51:31 UTCView event →
M 4.5165 km NW of Tobelo, Indonesia54.0 km2023-01-19 18:51:37 UTCView event →
M 4.7155 km NW of Tobelo, Indonesia51.2 km2023-01-19 20:35:20 UTCView event →
M 4.9214 km NNE of Tobelo, Indonesia11.5 km2023-01-20 08:58:08 UTCView event →
M 4.7175 km NW of Tobelo, Indonesia53.4 km2023-01-20 10:40:14 UTCView event →
M 5.0163 km NW of Tobelo, Indonesia24.6 km2023-01-20 17:49:34 UTCView event →
M 4.5160 km WNW of Tobelo, Indonesia49.8 km2023-01-21 01:14:37 UTCView event →
M 5.1155 km NW of Tobelo, Indonesia44.9 km2023-01-21 03:58:09 UTCView event →
M 4.7160 km NW of Tobelo, Indonesia52.6 km2023-01-21 06:17:08 UTCView event →
M 4.5155 km NW of Tobelo, Indonesia42.0 km2023-01-21 09:24:40 UTCView event →
M 4.5182 km NW of Tobelo, Indonesia35.0 km2023-01-21 17:24:06 UTCView event →
M 5.1157 km NW of Tobelo, Indonesia28.9 km2023-01-21 20:06:50 UTCView event →
M 4.5164 km NW of Tobelo, Indonesia40.7 km2023-01-22 02:29:04 UTCView event →
M 4.6159 km NW of Tobelo, Indonesia45.6 km2023-01-22 06:42:05 UTCView event →
M 4.7156 km NW of Tobelo, Indonesia37.9 km2023-01-22 17:57:43 UTCView event →
M 4.5161 km NW of Tobelo, Indonesia30.4 km2023-01-22 18:21:01 UTCView event →
M 4.5Molucca Sea35.0 km2023-01-22 22:50:51 UTCView event →
M 4.6149 km NW of Tobelo, Indonesia51.7 km2023-01-23 02:42:58 UTCView event →
M 4.7Pulau-Pulau Talaud, Indonesia35.0 km2023-01-23 14:01:53 UTCView event →
M 4.5175 km NW of Tobelo, Indonesia58.2 km2023-01-23 14:09:00 UTCView event →
M 4.6156 km NW of Tobelo, Indonesia42.9 km2023-01-23 15:38:35 UTCView event →
M 5.0170 km NW of Tobelo, Indonesia30.5 km2023-01-23 17:06:48 UTCView event →
M 5.5164 km NW of Tobelo, Indonesia9.7 km2023-01-23 18:17:34 UTCView event →
M 5.1167 km NW of Tobelo, Indonesia18.5 km2023-01-24 01:10:20 UTCView event →
M 4.7197 km NE of Laikit, Laikit II (Dimembe), Indonesia35.0 km2023-01-24 01:14:31 UTCView event →
M 5.8169 km NW of Tobelo, Indonesia35.0 km2023-01-24 02:13:14 UTCView event →
M 4.7169 km NW of Tobelo, Indonesia35.0 km2023-01-24 02:18:28 UTCView event →
M 4.6Molucca Sea35.0 km2023-01-24 02:25:23 UTCView event →
M 4.6196 km NE of Laikit, Laikit II (Dimembe), Indonesia35.0 km2023-01-24 02:28:53 UTCView event →
M 5.4165 km NW of Tobelo, Indonesia35.0 km2023-01-24 02:30:04 UTCView event →
M 4.6176 km NW of Tobelo, Indonesia35.0 km2023-01-24 02:37:06 UTCView event →
M 4.5152 km NNW of Tobelo, Indonesia35.0 km2023-01-24 02:38:32 UTCView event →
M 4.6Molucca Sea35.0 km2023-01-24 02:53:31 UTCView event →
M 4.5160 km NW of Tobelo, Indonesia35.0 km2023-01-24 03:38:37 UTCView event →
M 4.9168 km NW of Tobelo, Indonesia35.0 km2023-01-24 04:02:54 UTCView event →
M 4.5145 km NW of Tobelo, Indonesia35.0 km2023-01-24 04:13:59 UTCView event →
M 4.5Molucca Sea52.5 km2023-01-24 05:04:39 UTCView event →
M 4.5165 km NW of Tobelo, Indonesia51.3 km2023-01-24 05:35:07 UTCView event →
M 4.7Molucca Sea46.3 km2023-01-24 10:17:29 UTCView event →
M 4.6147 km NW of Tobelo, Indonesia42.7 km2023-01-24 11:08:10 UTCView event →
M 4.5169 km NW of Tobelo, Indonesia50.0 km2023-01-24 13:06:37 UTCView event →
M 5.0186 km NW of Tobelo, Indonesia35.9 km2023-01-24 13:11:21 UTCView event →
M 5.2210 km NNE of Tobelo, Indonesia11.0 km2023-01-24 16:10:15 UTCView event →
M 4.5156 km NNW of Tobelo, Indonesia39.7 km2023-01-24 20:12:55 UTCView event →
M 5.3193 km NW of Tobelo, Indonesia35.0 km2023-01-24 20:17:58 UTCView event →
M 4.5Pulau-Pulau Talaud, Indonesia35.7 km2023-01-25 00:44:54 UTCView event →
M 4.6168 km NW of Tobelo, Indonesia43.5 km2023-01-25 15:51:50 UTCView event →
M 4.5146 km NW of Tobelo, Indonesia36.4 km2023-01-25 19:31:07 UTCView event →
M 5.7167 km NW of Tobelo, Indonesia35.0 km2023-01-26 04:23:51 UTCView event →
M 4.7north of Halmahera, Indonesia10.0 km2023-01-26 04:30:13 UTCView event →
M 4.8161 km NW of Tobelo, Indonesia64.6 km2023-01-26 06:33:45 UTCView event →
M 4.5Molucca Sea38.6 km2023-01-26 13:11:32 UTCView event →
M 4.6173 km NW of Tobelo, Indonesia34.2 km2023-01-26 17:25:58 UTCView event →
M 4.7184 km NW of Tobelo, Indonesia38.5 km2023-01-28 00:03:31 UTCView event →
M 5.336 km NE of Tobelo, Indonesia143.9 km2023-01-28 19:15:18 UTCView event →
M 4.5180 km NW of Tobelo, Indonesia48.9 km2023-01-29 01:45:44 UTCView event →
M 4.6168 km NW of Tobelo, Indonesia51.4 km2023-01-29 03:20:20 UTCView event →
M 4.9Mindanao, Philippines49.1 km2023-01-29 04:23:33 UTCView event →
M 4.6154 km NW of Tobelo, Indonesia64.7 km2023-01-29 05:15:38 UTCView event →
M 4.7172 km NW of Tobelo, Indonesia49.2 km2023-01-29 15:20:28 UTCView event →
M 4.7173 km NW of Tobelo, Indonesia47.6 km2023-01-29 16:11:02 UTCView event →
M 5.0171 km NW of Tobelo, Indonesia42.2 km2023-01-29 19:57:14 UTCView event →
M 4.675 km SE of Caburan, Philippines156.3 km2023-01-29 20:18:58 UTCView event →
M 4.5Molucca Sea52.4 km2023-01-29 20:25:22 UTCView event →
M 4.6Molucca Sea35.0 km2023-01-29 22:14:57 UTCView event →
M 4.5247 km NNE of Tobelo, Indonesia10.7 km2023-01-31 12:32:15 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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