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Sequence · 2000-05-04

M 7.6 · Observed seismic cluster · 89 km E of Luwuk, 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 cluster47
M6+2
Analysis radius436 km
Observation window14 days
Largest secondary eventM 6.3
Quake Pulse · Major sequence

What the sequence shows

After the M 7.6 reference event, Quake Pulse counts 19 M4+ event(s) in the first 24 hours and 31 in the first 7 days. Fourteen-day M4.5+ activity is about 40.0× the average equivalent derived from the previous year. The largest secondary event is M 1.3 below the reference event.

93/100Sequence score
Events in the previous 24 h0
In the first hour3
In the first 24 hours19
In the first 7 days31
Within 14 days46
Peak one-hour count3

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 d30Average 14-day equivalent1.2Activity / baseline ratio40.0×

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 6.3Magnitude gapM 1.3Observed duration13.1 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
89 km E of Luwuk, Indonesia · 436 kmInteractive 3D view of earthquakes within 436 km of 89 km E of Luwuk, Indonesia.89 km E of Luwuk, IndonesiaM 4.9 · 58 km ENE of Luwuk, Indonesia · 41.3 kmM 5.4 · 110 km SE of Luwuk, Indonesia · 61.9 kmM 4.5 · 115 km ESE of Luwuk, Indonesia · 37.2 kmM 5.1 · 88 km ESE of Luwuk, Indonesia · 34.8 kmM 5.0 · 104 km E of Luwuk, Indonesia · 15.7 kmM 4.5 · 88 km SE of Luwuk, Indonesia · 42.8 kmM 5.0 · 84 km ESE of Luwuk, Indonesia · 32.1 kmM 4.9 · 71 km ESE of Luwuk, Indonesia · 20.4 kmM 4.7 · 92 km SE of Luwuk, Indonesia · 37.2 kmM 4.7 · 103 km SE of Luwuk, Indonesia · 48.2 kmM 4.8 · 79 km ESE of Luwuk, Indonesia · 12.4 kmM 4.8 · 106 km SE of Luwuk, Indonesia · 51.5 kmM 4.8 · 79 km SE of Luwuk, Indonesia · 38.8 kmM 4.6 · 55 km E of Luwuk, Indonesia · 33.8 kmM 4.6 · 72 km ESE of Luwuk, Indonesia · 23.3 kmM 4.9 · 102 km SE of Luwuk, Indonesia · 59.2 kmM 4.9 · 73 km ESE of Luwuk, Indonesia · 22.3 kmM 4.5 · 80 km E of Luwuk, Indonesia · 8.9 kmM 4.5 · 106 km E of Luwuk, Indonesia · 18.4 km
89 km E of Luwuk, Indonesia436 km19 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

Shallow

55/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.689 km E of Luwuk, Indonesia26.0 km2000-05-04 04:21:16 UTCView event →
M 4.958 km ENE of Luwuk, Indonesia33.0 km2000-05-04 04:40:01 UTCView event →
M 5.4110 km SE of Luwuk, Indonesia33.0 km2000-05-04 04:50:52 UTCView event →
M 4.5115 km ESE of Luwuk, Indonesia33.0 km2000-05-04 05:07:54 UTCView event →
M 5.188 km ESE of Luwuk, Indonesia33.0 km2000-05-04 05:56:19 UTCView event →
M 5.0104 km E of Luwuk, Indonesia33.0 km2000-05-04 06:06:27 UTCView event →
M 4.588 km SE of Luwuk, Indonesia33.0 km2000-05-04 06:29:55 UTCView event →
M 5.084 km ESE of Luwuk, Indonesia33.0 km2000-05-04 07:24:59 UTCView event →
M 4.971 km ESE of Luwuk, Indonesia33.0 km2000-05-04 07:58:17 UTCView event →
M 4.792 km SE of Luwuk, Indonesia33.0 km2000-05-04 08:04:13 UTCView event →
M 4.7103 km SE of Luwuk, Indonesia33.0 km2000-05-04 09:55:51 UTCView event →
M 4.879 km ESE of Luwuk, Indonesia33.0 km2000-05-04 11:10:22 UTCView event →
M 4.8106 km SE of Luwuk, Indonesia33.0 km2000-05-04 11:39:38 UTCView event →
M 4.879 km SE of Luwuk, Indonesia33.0 km2000-05-04 12:01:47 UTCView event →
M 4.655 km E of Luwuk, Indonesia33.0 km2000-05-04 14:08:14 UTCView event →
M 4.672 km ESE of Luwuk, Indonesia33.0 km2000-05-04 15:03:25 UTCView event →
M 4.9102 km SE of Luwuk, Indonesia33.0 km2000-05-04 17:42:19 UTCView event →
M 4.973 km ESE of Luwuk, Indonesia33.0 km2000-05-04 17:56:10 UTCView event →
M 4.580 km E of Luwuk, Indonesia33.0 km2000-05-05 01:27:54 UTCView event →
M 4.5106 km E of Luwuk, Indonesia33.0 km2000-05-05 03:40:04 UTCView event →
M 5.769 km ESE of Luwuk, Indonesia33.0 km2000-05-05 05:24:26 UTCView event →
M 4.775 km ESE of Luwuk, Indonesia87.9 km2000-05-05 19:31:26 UTCView event →
M 4.6100 km ESE of Luwuk, Indonesia33.0 km2000-05-06 00:15:57 UTCView event →
M 4.7134 km ESE of Luwuk, Indonesia33.0 km2000-05-06 15:14:03 UTCView event →
M 4.880 km ESE of Luwuk, Indonesia76.4 km2000-05-07 11:21:55 UTCView event →
M 5.6159 km N of Kendari, Indonesia31.3 km2000-05-07 17:21:12 UTCView event →
M 5.2161 km NNW of Kendari, Indonesia33.0 km2000-05-07 20:33:26 UTCView event →
M 4.842 km SE of Luwuk, Indonesia119.4 km2000-05-08 10:04:47 UTCView event →
M 4.5104 km ESE of Luwuk, Indonesia33.0 km2000-05-08 18:46:52 UTCView event →
M 4.691 km SE of Luwuk, Indonesia89.1 km2000-05-09 22:43:45 UTCView event →
M 4.8102 km E of Luwuk, Indonesia33.0 km2000-05-10 15:46:05 UTCView event →
M 4.7109 km SE of Luwuk, Indonesia33.0 km2000-05-11 02:04:55 UTCView event →
M 5.166 km NE of Luwuk, Indonesia77.0 km2000-05-11 21:38:05 UTCView event →
M 4.794 km ESE of Luwuk, Indonesia33.0 km2000-05-12 01:46:44 UTCView event →
M 4.977 km ESE of Luwuk, Indonesia33.0 km2000-05-12 04:22:05 UTCView event →
M 4.596 km ESE of Luwuk, Indonesia33.0 km2000-05-12 06:49:12 UTCView event →
M 4.5137 km E of Laikit, Laikit II (Dimembe), Indonesia58.5 km2000-05-13 22:30:01 UTCView event →
M 5.681 km SE of Luwuk, Indonesia33.0 km2000-05-14 10:47:43 UTCView event →
M 4.886 km SE of Luwuk, Indonesia76.6 km2000-05-14 11:32:40 UTCView event →
M 4.889 km NNE of Gorontalo, Indonesia33.0 km2000-05-14 16:43:18 UTCView event →
M 6.380 km ESE of Kendari, Indonesia33.0 km2000-05-14 20:08:34 UTCView event →
M 4.793 km ESE of Kendari, Indonesia33.0 km2000-05-14 20:49:24 UTCView event →
M 4.781 km NE of Katabu, Indonesia33.0 km2000-05-14 20:52:04 UTCView event →
M 4.794 km ESE of Kendari, Indonesia33.0 km2000-05-14 21:01:06 UTCView event →
M 4.792 km ESE of Kendari, Indonesia33.0 km2000-05-15 04:58:14 UTCView event →
M 5.184 km ESE of Luwuk, Indonesia66.2 km2000-05-16 20:16:16 UTCView event →
M 4.794 km E of Luwuk, Indonesia33.0 km2000-05-17 07:46:23 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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