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Sequence · 2007-11-14

M 7.7 · Observed seismic cluster · 36 km ESE of Tocopilla, Chile

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 cluster77
M6+5
Analysis radius452 km
Observation window14 days
Largest secondary eventM 6.8
Quake Pulse · Major sequence

What the sequence shows

After the M 7.7 reference event, Quake Pulse counts 25 M4+ event(s) in the first 24 hours and 69 in the first 7 days. Fourteen-day M4.5+ activity is about 19.2× the average equivalent derived from the previous year. The largest secondary event is M 0.9 below the reference event.

100/100Sequence score
Events in the previous 24 h0
In the first hour6
In the first 24 hours25
In the first 7 days69
Within 14 days76
Peak one-hour count6

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 d103Average 14-day equivalent4.0Activity / baseline ratio19.2×

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 6.8Magnitude gapM 0.9Observed duration13.4 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
36 km ESE of Tocopilla, Chile · 452 kmInteractive 3D view of earthquakes within 452 km of 36 km ESE of Tocopilla, Chile.36 km ESE of Tocopilla, ChileM 5.2 · 66 km NNW of Antofagasta, Chile · 112.1 kmM 5.3 · 20 km SE of Tocopilla, Chile · 17.5 kmM 5.0 · 56 km NNE of Antofagasta, Chile · 109.9 kmM 4.8 · 49 km N of Antofagasta, Chile · 121.0 kmM 4.8 · 41 km NNW of Antofagasta, Chile · 139.6 kmM 4.6 · 69 km NNW of Antofagasta, Chile · 109.5 kmM 5.1 · 68 km NE of Antofagasta, Chile · 100.8 kmM 4.6 · 42 km SSE of Tocopilla, Chile · 23.0 kmM 5.7 · 50 km NNW of Antofagasta, Chile · 125.9 kmM 4.7 · 34 km NNW of Antofagasta, Chile · 135.3 kmM 5.0 · 53 km N of Antofagasta, Chile · 119.1 kmM 4.8 · 42 km NNW of Antofagasta, Chile · 136.7 kmM 4.8 · 48 km S of Tocopilla, Chile · 42.6 kmM 4.7 · 75 km N of Antofagasta, Chile · 104.1 kmM 5.1 · 64 km S of Tocopilla, Chile · 62.6 kmM 5.0 · 44 km SE of Tocopilla, Chile · 9.2 kmM 5.0 · 49 km NNW of Antofagasta, Chile · 126.1 kmM 4.5 · 41 km ESE of Tocopilla, Chile · 5.3 kmM 5.0 · 43 km NNW of Antofagasta, Chile · 139.2 kmM 5.3 · 64 km NNW of Antofagasta, Chile · 132.0 kmM 6.3 · 86 km N of Antofagasta, Chile · 87.0 kmM 6.8 · 82 km NNE of Antofagasta, Chile · 83.4 kmM 4.8 · 82 km NE of Antofagasta, Chile · 109.9 kmM 5.2 · 57 km N of Antofagasta, Chile · 115.7 kmM 5.6 · 77 km S of Tocopilla, Chile · 67.8 km
36 km ESE of Tocopilla, Chile452 km25 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

108 Felt reports · Shallow

67/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.736 km ESE of Tocopilla, Chile40.0 km2007-11-14 15:40:50 UTCView event →
M 5.266 km NNW of Antofagasta, Chile24.8 km2007-11-14 16:03:02 UTCView event →
M 5.320 km SE of Tocopilla, Chile43.8 km2007-11-14 16:04:50 UTCView event →
M 5.056 km NNE of Antofagasta, Chile39.4 km2007-11-14 16:13:22 UTCView event →
M 4.849 km N of Antofagasta, Chile47.5 km2007-11-14 16:16:50 UTCView event →
M 4.841 km NNW of Antofagasta, Chile27.2 km2007-11-14 16:19:35 UTCView event →
M 4.669 km NNW of Antofagasta, Chile29.7 km2007-11-14 16:36:37 UTCView event →
M 5.168 km NE of Antofagasta, Chile46.0 km2007-11-14 17:18:45 UTCView event →
M 4.642 km SSE of Tocopilla, Chile49.7 km2007-11-14 17:39:35 UTCView event →
M 5.750 km NNW of Antofagasta, Chile38.0 km2007-11-14 17:44:04 UTCView event →
M 4.734 km NNW of Antofagasta, Chile42.5 km2007-11-14 17:49:23 UTCView event →
M 5.053 km N of Antofagasta, Chile25.8 km2007-11-14 17:53:28 UTCView event →
M 4.842 km NNW of Antofagasta, Chile27.9 km2007-11-14 17:56:48 UTCView event →
M 4.848 km S of Tocopilla, Chile35.0 km2007-11-14 18:00:26 UTCView event →
M 4.775 km N of Antofagasta, Chile17.0 km2007-11-14 18:32:01 UTCView event →
M 5.164 km S of Tocopilla, Chile31.5 km2007-11-14 18:55:49 UTCView event →
M 5.044 km SE of Tocopilla, Chile48.8 km2007-11-14 19:17:24 UTCView event →
M 5.049 km NNW of Antofagasta, Chile9.8 km2007-11-15 01:46:34 UTCView event →
M 4.541 km ESE of Tocopilla, Chile61.0 km2007-11-15 04:29:54 UTCView event →
M 5.043 km NNW of Antofagasta, Chile35.0 km2007-11-15 09:31:29 UTCView event →
M 5.364 km NNW of Antofagasta, Chile19.4 km2007-11-15 11:14:50 UTCView event →
M 6.386 km N of Antofagasta, Chile27.0 km2007-11-15 15:03:08 UTCView event →
M 6.882 km NNE of Antofagasta, Chile26.0 km2007-11-15 15:05:58 UTCView event →
M 4.882 km NE of Antofagasta, Chile98.5 km2007-11-15 15:11:32 UTCView event →
M 5.257 km N of Antofagasta, Chile32.7 km2007-11-15 15:12:57 UTCView event →
M 5.677 km S of Tocopilla, Chile29.4 km2007-11-15 15:15:48 UTCView event →
M 4.974 km NNW of Antofagasta, Chile33.7 km2007-11-15 15:45:49 UTCView event →
M 4.777 km N of Antofagasta, Chile36.1 km2007-11-15 16:10:53 UTCView event →
M 4.780 km NNW of Antofagasta, Chile37.5 km2007-11-15 16:13:56 UTCView event →
M 4.775 km N of Antofagasta, Chile35.5 km2007-11-15 16:23:35 UTCView event →
M 4.7134 km E of Iquique, Chile121.5 km2007-11-15 20:15:24 UTCView event →
M 4.770 km N of Antofagasta, Chile35.0 km2007-11-15 21:05:34 UTCView event →
M 5.089 km NNW of Antofagasta, Chile35.0 km2007-11-15 21:12:25 UTCView event →
M 4.576 km N of Antofagasta, Chile35.0 km2007-11-16 01:53:05 UTCView event →
M 5.592 km NNW of Antofagasta, Chile14.8 km2007-11-16 08:42:39 UTCView event →
M 4.660 km WNW of Antofagasta, Chile35.0 km2007-11-16 09:11:56 UTCView event →
M 5.234 km NNW of Antofagasta, Chile44.5 km2007-11-16 14:34:07 UTCView event →
M 4.831 km ESE of Tocopilla, Chile39.2 km2007-11-16 17:05:19 UTCView event →
M 4.581 km SSW of Tocopilla, Chile37.0 km2007-11-16 19:07:26 UTCView event →
M 4.542 km NNW of Antofagasta, Chile8.5 km2007-11-16 21:09:29 UTCView event →
M 5.568 km N of Antofagasta, Chile34.5 km2007-11-17 03:07:32 UTCView event →
M 5.968 km NNW of Antofagasta, Chile14.7 km2007-11-17 17:54:32 UTCView event →
M 4.962 km NNW of Antofagasta, Chile24.3 km2007-11-17 18:04:38 UTCView event →
M 5.260 km NNW of Antofagasta, Chile7.2 km2007-11-17 18:13:12 UTCView event →
M 4.558 km NW of Antofagasta, Chile15.9 km2007-11-17 18:33:36 UTCView event →
M 4.559 km NNW of Antofagasta, Chile40.9 km2007-11-17 19:04:28 UTCView event →
M 4.768 km NNW of Antofagasta, Chile35.0 km2007-11-17 19:25:47 UTCView event →
M 4.882 km SSE of Tocopilla, Chile40.5 km2007-11-17 19:27:52 UTCView event →
M 4.668 km NW of Antofagasta, Chile6.8 km2007-11-17 19:41:37 UTCView event →
M 4.7Near the coast of Antofagasta, Chile14.4 km2007-11-17 19:59:20 UTCView event →
M 5.169 km NW of Antofagasta, Chile29.5 km2007-11-17 22:17:29 UTCView event →
M 6.0Jujuy, Argentina246.4 km2007-11-18 05:40:12 UTCView event →
M 5.377 km ESE of Arica, Chile97.2 km2007-11-18 07:02:41 UTCView event →
M 5.762 km NNW of Antofagasta, Chile33.0 km2007-11-18 12:15:40 UTCView event →
M 5.289 km SSW of Tocopilla, Chile19.7 km2007-11-18 15:24:54 UTCView event →
M 5.086 km N of Antofagasta, Chile31.1 km2007-11-19 18:19:22 UTCView event →
M 5.385 km NNW of Antofagasta, Chile13.1 km2007-11-19 20:21:07 UTCView event →
M 5.997 km SW of Tocopilla, Chile29.9 km2007-11-19 23:30:28 UTCView event →
M 5.171 km NNE of Antofagasta, Chile35.0 km2007-11-20 00:51:09 UTCView event →
M 4.9101 km SW of Tocopilla, Chile33.3 km2007-11-20 01:24:50 UTCView event →
M 5.093 km SSW of Tocopilla, Chile31.0 km2007-11-20 04:56:16 UTCView event →
M 4.788 km SSW of Tocopilla, Chile32.5 km2007-11-20 06:41:09 UTCView event →
M 4.658 km W of Abra Pampa, Argentina222.6 km2007-11-20 13:10:49 UTCView event →
M 5.455 km N of Antofagasta, Chile15.9 km2007-11-20 16:44:28 UTCView event →
M 6.181 km N of Antofagasta, Chile15.0 km2007-11-20 17:55:51 UTCView event →
M 5.055 km NNW of Antofagasta, Chile23.4 km2007-11-20 20:55:28 UTCView event →
M 4.888 km NNW of Antofagasta, Chile35.9 km2007-11-20 22:38:31 UTCView event →
M 4.792 km SSW of Tocopilla, Chile34.4 km2007-11-21 07:53:01 UTCView event →
M 5.090 km SSW of Tocopilla, Chile46.6 km2007-11-21 07:55:22 UTCView event →
M 5.8175 km NW of Antofagasta de la Sierra, Argentina115.4 km2007-11-21 12:55:05 UTCView event →
M 5.6126 km SW of San Pedro de Atacama, Chile92.1 km2007-11-24 05:02:06 UTCView event →
M 5.050 km SSW of Tocopilla, Chile34.7 km2007-11-26 06:14:56 UTCView event →
M 4.890 km SW of Tocopilla, Chile30.5 km2007-11-26 06:58:51 UTCView event →
M 4.912 km ENE of Tocopilla, Chile45.1 km2007-11-26 09:10:07 UTCView event →
M 4.787 km SW of Tocopilla, Chile34.4 km2007-11-27 00:48:37 UTCView event →
M 4.959 km N of Antofagasta, Chile39.1 km2007-11-27 03:34:10 UTCView event →
M 4.682 km SSW of Tocopilla, Chile55.6 km2007-11-28 02:14:05 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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