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Sequence · 2010-07-23

M 7.6 · Observed seismic cluster · 61 km W of Bantogon, Philippines

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 cluster29
M6+4
Analysis radius436 km
Observation window14 days
Largest secondary eventM 7.5
Quake Pulse · Major sequence

What the sequence shows

After the M 7.6 reference event, Quake Pulse counts 13 M4+ event(s) in the first 24 hours and 27 in the first 7 days. Fourteen-day M4.5+ activity is about 4.3× the average equivalent derived from the previous year. The largest secondary event is M 0.1 below the reference event.

95/100Sequence score
Events in the previous 24 h4
In the first hour7
In the first 24 hours13
In the first 7 days27
Within 14 days28
Peak one-hour count7

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 d169Average 14-day equivalent6.5Activity / baseline ratio4.3×

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 7.5Magnitude gapM 0.1Observed duration11.1 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
61 km W of Bantogon, Philippines · 436 kmInteractive 3D view of earthquakes within 436 km of 61 km W of Bantogon, Philippines.61 km W of Bantogon, PhilippinesM 5.8 · 66 km W of Bantogon, Philippines · 7.6 kmM 5.8 · 29 km W of Litayan, Philippines · 96.7 kmM 5.4 · 3 km NNW of Taguisa, Philippines · 65.4 kmM 4.8 · 27 km W of Gadung, Philippines · 46.9 kmM 4.6 · 44 km WSW of Sangay, Philippines · 28.4 kmM 7.5 · 72 km S of Panubigan, Philippines · 39.5 kmM 4.7 · 47 km W of Bantogon, Philippines · 17.4 kmM 4.8 · 44 km W of Bantogon, Philippines · 17.9 kmM 4.8 · 41 km W of Bantogon, Philippines · 22.2 kmM 6.6 · 63 km WSW of Sangay, Philippines · 31.3 kmM 4.6 · 35 km W of Gadung, Philippines · 39.0 kmM 4.6 · 36 km W of Gadung, Philippines · 37.3 kmM 5.1 · 42 km WSW of Gadung, Philippines · 30.6 km
61 km W of Bantogon, Philippines436 km13 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

28 Felt reports · Very deep

60/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.661 km W of Bantogon, Philippines578.0 km2010-07-23 22:51:11 UTCView event →
M 5.866 km W of Bantogon, Philippines611.5 km2010-07-23 22:57:40 UTCView event →
M 5.829 km W of Litayan, Philippines601.7 km2010-07-23 22:59:48 UTCView event →
M 5.43 km NNW of Taguisa, Philippines591.2 km2010-07-23 23:02:58 UTCView event →
M 4.827 km W of Gadung, Philippines592.8 km2010-07-23 23:11:46 UTCView event →
M 4.644 km WSW of Sangay, Philippines610.4 km2010-07-23 23:12:58 UTCView event →
M 7.572 km S of Panubigan, Philippines640.6 km2010-07-23 23:15:10 UTCView event →
M 4.747 km W of Bantogon, Philippines595.6 km2010-07-23 23:49:36 UTCView event →
M 4.844 km W of Bantogon, Philippines590.1 km2010-07-24 00:50:13 UTCView event →
M 4.841 km W of Bantogon, Philippines596.4 km2010-07-24 01:44:44 UTCView event →
M 6.663 km WSW of Sangay, Philippines553.0 km2010-07-24 05:35:01 UTCView event →
M 4.635 km W of Gadung, Philippines602.0 km2010-07-24 09:46:48 UTCView event →
M 4.636 km W of Gadung, Philippines602.3 km2010-07-24 11:10:45 UTCView event →
M 5.142 km WSW of Gadung, Philippines598.5 km2010-07-24 11:56:24 UTCView event →
M 4.931 km W of Gadung, Philippines602.4 km2010-07-25 04:21:38 UTCView event →
M 4.746 km W of Bantogon, Philippines593.0 km2010-07-25 04:36:19 UTCView event →
M 5.350 km W of Gadung, Philippines618.4 km2010-07-25 08:18:29 UTCView event →
M 4.731 km ESE of Baculin, Philippines67.8 km2010-07-25 12:28:45 UTCView event →
M 4.747 km WSW of Gadung, Philippines598.2 km2010-07-25 20:30:54 UTCView event →
M 4.765 km W of Gadung, Philippines633.6 km2010-07-26 07:36:48 UTCView event →
M 5.043 km W of Gadung, Philippines606.2 km2010-07-26 16:37:02 UTCView event →
M 5.483 km SSE of Olutanga, Philippines625.7 km2010-07-26 23:06:49 UTCView event →
M 4.726 km W of Gadung, Philippines601.4 km2010-07-27 04:51:14 UTCView event →
M 4.832 km ESE of Jovellar, Philippines181.3 km2010-07-28 08:07:07 UTCView event →
M 6.689 km W of Bantogon, Philippines618.0 km2010-07-29 07:31:56 UTCView event →
M 4.966 km W of Bantogon, Philippines623.6 km2010-07-29 08:55:27 UTCView event →
M 4.564 km W of Taguisa, Philippines620.0 km2010-07-29 11:30:14 UTCView event →
M 4.943 km W of Taguisa, Philippines587.7 km2010-07-30 12:40:27 UTCView event →
M 4.967 km SE of Lukatan, Philippines85.2 km2010-08-04 00:43:06 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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