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Sequence · 2019-07-07

M 6.9 · Observed seismic cluster · 136 km WSW of Ternate, 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 cluster95
M6+2
Analysis radius324 km
Observation window14 days
Largest secondary eventM 7.2
Quake Pulse · Major sequence

What the sequence shows

After the M 6.9 reference event, Quake Pulse counts 21 M4+ event(s) in the first 24 hours and 71 in the first 7 days. Fourteen-day M4.5+ activity is about 11.5× the average equivalent derived from the previous year. The largest secondary event is M 0.0 below the reference event.

87/100Sequence score
Events in the previous 24 h0
In the first hour9
In the first 24 hours21
In the first 7 days71
Within 14 days95
Peak one-hour count13

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 d215Average 14-day equivalent8.2Activity / baseline ratio11.5×

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 7.2Magnitude gapM 0.0Observed duration12.8 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
136 km WSW of Ternate, Indonesia · 324 kmInteractive 3D view of earthquakes within 324 km of 136 km WSW of Ternate, Indonesia.136 km WSW of Ternate, IndonesiaM 4.6 · 121 km WSW of Ternate, Indonesia · 23.9 kmM 4.6 · 120 km W of Ternate, Indonesia · 16.7 kmM 4.9 · 119 km WSW of Ternate, Indonesia · 17.7 kmM 4.7 · 149 km WSW of Ternate, Indonesia · 13.6 kmM 4.6 · 142 km WSW of Ternate, Indonesia · 5.6 kmM 4.5 · 134 km WSW of Ternate, Indonesia · 5.1 kmM 4.9 · 137 km WSW of Ternate, Indonesia · 1.1 kmM 4.6 · 133 km WSW of Ternate, Indonesia · 15.7 kmM 4.5 · 124 km WSW of Ternate, Indonesia · 15.2 kmM 4.5 · 133 km W of Ternate, Indonesia · 5.4 kmM 4.9 · 135 km WSW of Ternate, Indonesia · 2.5 kmM 4.6 · 117 km W of Ternate, Indonesia · 21.0 kmM 4.6 · 123 km WSW of Ternate, Indonesia · 13.1 kmM 4.6 · 136 km WSW of Ternate, Indonesia · 10.6 kmM 4.5 · 101 km WSW of Ternate, Indonesia · 35.2 kmM 4.5 · 112 km WSW of Ternate, Indonesia · 24.5 kmM 4.6 · 135 km WSW of Ternate, Indonesia · 6.5 kmM 5.1 · 96 km W of Ternate, Indonesia · 48.5 kmM 4.8 · 131 km WSW of Ternate, Indonesia · 5.4 kmM 5.0 · 114 km W of Ternate, Indonesia · 28.7 kmM 5.6 · 131 km WSW of Ternate, Indonesia · 9.8 km
136 km WSW of Ternate, Indonesia324 km21 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

21 Felt reports · PAGER GREEN · Shallow

57/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.9136 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:08:40 UTCView event →
M 4.6121 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:24:38 UTCView event →
M 4.6120 km W of Ternate, Indonesia29.0 km2019-07-07 15:28:13 UTCView event →
M 4.9119 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:29:16 UTCView event →
M 4.7149 km WSW of Ternate, Indonesia13.2 km2019-07-07 15:35:33 UTCView event →
M 4.6142 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:36:50 UTCView event →
M 4.5134 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:37:08 UTCView event →
M 4.9137 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:43:59 UTCView event →
M 4.6133 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:46:29 UTCView event →
M 4.5124 km WSW of Ternate, Indonesia35.0 km2019-07-07 15:57:03 UTCView event →
M 4.5133 km W of Ternate, Indonesia35.0 km2019-07-07 16:18:44 UTCView event →
M 4.9135 km WSW of Ternate, Indonesia30.5 km2019-07-07 17:05:15 UTCView event →
M 4.6117 km W of Ternate, Indonesia35.0 km2019-07-07 17:15:31 UTCView event →
M 4.6123 km WSW of Ternate, Indonesia35.0 km2019-07-07 18:17:25 UTCView event →
M 4.6136 km WSW of Ternate, Indonesia35.0 km2019-07-07 18:35:10 UTCView event →
M 4.5101 km WSW of Ternate, Indonesia35.0 km2019-07-07 20:01:36 UTCView event →
M 4.5112 km WSW of Ternate, Indonesia35.0 km2019-07-07 20:35:21 UTCView event →
M 4.6135 km WSW of Ternate, Indonesia35.0 km2019-07-07 20:36:33 UTCView event →
M 5.196 km W of Ternate, Indonesia34.1 km2019-07-08 02:24:36 UTCView event →
M 4.8131 km WSW of Ternate, Indonesia35.0 km2019-07-08 02:49:43 UTCView event →
M 5.0114 km W of Ternate, Indonesia19.1 km2019-07-08 04:16:15 UTCView event →
M 5.6131 km WSW of Ternate, Indonesia10.0 km2019-07-08 06:20:10 UTCView event →
M 5.9124 km WSW of Ternate, Indonesia28.0 km2019-07-08 18:52:33 UTCView event →
M 5.0116 km WSW of Ternate, Indonesia15.6 km2019-07-08 19:00:38 UTCView event →
M 4.5121 km WSW of Ternate, Indonesia28.8 km2019-07-08 19:28:18 UTCView event →
M 4.8118 km WSW of Ternate, Indonesia19.4 km2019-07-08 19:54:10 UTCView event →
M 4.5118 km WSW of Ternate, Indonesia35.0 km2019-07-08 20:57:39 UTCView event →
M 4.9122 km WSW of Ternate, Indonesia36.1 km2019-07-08 21:30:47 UTCView event →
M 4.6117 km WSW of Ternate, Indonesia32.2 km2019-07-08 21:41:11 UTCView event →
M 4.5109 km WSW of Ternate, Indonesia43.2 km2019-07-08 23:05:27 UTCView event →
M 5.2114 km W of Ternate, Indonesia19.7 km2019-07-08 23:57:55 UTCView event →
M 5.0111 km W of Ternate, Indonesia28.1 km2019-07-08 23:58:23 UTCView event →
M 4.6160 km S of Tondano, Indonesia43.6 km2019-07-09 00:27:16 UTCView event →
M 4.6142 km WNW of Ternate, Indonesia34.8 km2019-07-10 10:09:44 UTCView event →
M 4.9145 km SE of Tondano, Indonesia35.0 km2019-07-11 10:06:38 UTCView event →
M 5.0144 km S of Sofifi, Indonesia10.0 km2019-07-11 14:38:00 UTCView event →
M 4.7123 km WSW of Ternate, Indonesia17.9 km2019-07-11 16:27:00 UTCView event →
M 4.5163 km SE of Gorontalo, Indonesia59.0 km2019-07-11 16:31:25 UTCView event →
M 4.8128 km WSW of Ternate, Indonesia39.4 km2019-07-11 21:24:26 UTCView event →
M 5.2105 km WSW of Ternate, Indonesia10.0 km2019-07-11 21:46:36 UTCView event →
M 4.5121 km WSW of Ternate, Indonesia21.4 km2019-07-13 05:31:47 UTCView event →
M 7.2155 km SSE of Sofifi, Indonesia19.0 km2019-07-14 09:10:51 UTCView event →
M 4.8182 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:19:08 UTCView event →
M 4.9173 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:22:37 UTCView event →
M 4.5205 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:25:15 UTCView event →
M 4.7175 km S of Sofifi, Indonesia10.0 km2019-07-14 09:27:26 UTCView event →
M 5.1180 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:28:39 UTCView event →
M 5.1180 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:29:36 UTCView event →
M 4.5182 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:35:11 UTCView event →
M 4.8183 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:38:21 UTCView event →
M 5.8171 km S of Sofifi, Indonesia10.0 km2019-07-14 09:43:46 UTCView event →
M 4.9201 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:54:48 UTCView event →
M 4.8202 km SSE of Sofifi, Indonesia10.0 km2019-07-14 09:55:33 UTCView event →
M 5.2149 km SSE of Sofifi, Indonesia10.0 km2019-07-14 10:05:21 UTCView event →
M 4.6134 km SSE of Sofifi, Indonesia10.0 km2019-07-14 10:13:48 UTCView event →
M 4.5188 km SSE of Sofifi, Indonesia10.0 km2019-07-14 10:23:36 UTCView event →
M 5.8138 km SSE of Sofifi, Indonesia10.0 km2019-07-14 10:26:58 UTCView event →
M 4.5140 km SSE of Sofifi, Indonesia10.0 km2019-07-14 10:36:10 UTCView event →
M 4.5173 km S of Sofifi, Indonesia7.0 km2019-07-14 10:38:33 UTCView event →
M 4.6150 km SSE of Sofifi, Indonesia10.0 km2019-07-14 10:44:25 UTCView event →
M 4.7145 km SSE of Sofifi, Indonesia10.0 km2019-07-14 10:54:05 UTCView event →
M 4.6169 km S of Sofifi, Indonesia10.0 km2019-07-14 10:57:57 UTCView event →
M 4.8139 km S of Sofifi, Indonesia10.0 km2019-07-14 11:08:33 UTCView event →
M 4.7150 km S of Sofifi, Indonesia10.0 km2019-07-14 11:13:21 UTCView event →
M 5.0142 km SSE of Sofifi, Indonesia10.0 km2019-07-14 11:52:26 UTCView event →
M 4.6171 km SSE of Sofifi, Indonesia10.0 km2019-07-14 12:05:44 UTCView event →
M 4.6164 km S of Sofifi, Indonesia10.0 km2019-07-14 12:15:33 UTCView event →
M 4.7148 km S of Sofifi, Indonesia10.0 km2019-07-14 12:22:58 UTCView event →
M 4.5164 km S of Sofifi, Indonesia10.0 km2019-07-14 12:25:53 UTCView event →
M 4.7156 km S of Sofifi, Indonesia10.0 km2019-07-14 12:35:35 UTCView event →
M 4.6147 km SSE of Sofifi, Indonesia10.0 km2019-07-14 13:44:13 UTCView event →
M 4.5191 km SSE of Sofifi, Indonesia10.0 km2019-07-14 13:56:10 UTCView event →
M 4.5150 km S of Sofifi, Indonesia10.0 km2019-07-14 15:39:07 UTCView event →
M 5.1144 km SSE of Sofifi, Indonesia10.0 km2019-07-14 15:44:20 UTCView event →
M 4.5145 km WSW of Ternate, Indonesia35.0 km2019-07-14 15:49:35 UTCView event →
M 4.7143 km SSE of Sofifi, Indonesia10.0 km2019-07-14 16:36:58 UTCView event →
M 4.5192 km SSE of Sofifi, Indonesia10.0 km2019-07-14 16:57:38 UTCView event →
M 4.5149 km SSE of Sofifi, Indonesia10.0 km2019-07-14 22:21:20 UTCView event →
M 5.0158 km S of Sofifi, Indonesia10.0 km2019-07-15 03:05:13 UTCView event →
M 4.5134 km SSE of Sofifi, Indonesia10.0 km2019-07-15 05:48:09 UTCView event →
M 4.5171 km S of Sofifi, Indonesia10.0 km2019-07-15 05:50:43 UTCView event →
M 4.771 km NNW of Ternate, Indonesia130.2 km2019-07-15 06:31:13 UTCView event →
M 5.2133 km SSE of Sofifi, Indonesia10.0 km2019-07-15 10:35:24 UTCView event →
M 4.6124 km SSE of Sofifi, Indonesia10.0 km2019-07-15 11:23:05 UTCView event →
M 4.5172 km S of Sofifi, Indonesia10.0 km2019-07-15 13:47:07 UTCView event →
M 4.5138 km SSE of Sofifi, Indonesia10.0 km2019-07-16 03:53:13 UTCView event →
M 4.7156 km S of Sofifi, Indonesia10.0 km2019-07-16 16:45:52 UTCView event →
M 4.7137 km WSW of Ternate, Indonesia27.1 km2019-07-17 01:57:24 UTCView event →
M 4.5131 km WSW of Ternate, Indonesia41.1 km2019-07-17 04:40:31 UTCView event →
M 5.0232 km SE of Sofifi, Indonesia11.3 km2019-07-17 14:57:55 UTCView event →
M 4.8130 km WSW of Ternate, Indonesia30.9 km2019-07-18 17:08:21 UTCView event →
M 5.3Molucca Sea23.4 km2019-07-18 17:17:49 UTCView event →
M 4.7129 km WSW of Ternate, Indonesia35.0 km2019-07-19 06:58:03 UTCView event →
M 4.5179 km NNE of Laikit, Laikit II (Dimembe), Indonesia129.3 km2019-07-19 18:23:40 UTCView event →
M 4.7134 km SSE of Sofifi, Indonesia10.0 km2019-07-20 06:19:26 UTCView event →
M 4.5Molucca Sea35.0 km2019-07-20 11:09:13 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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