Sequence · 2025-09-30

M 6.9 · Observed seismic cluster · 8 km ESE of Calape, 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 cluster38
M6+1
Analysis radius324 km
Observation window14 days
Largest secondary eventM 5.8
Quake Pulse · Major sequence

What the sequence shows

After the M 6.9 reference event, Quake Pulse counts 22 M4+ event(s) in the first 24 hours and 36 in the first 7 days. Fourteen-day M4.5+ activity is about 11.3× the average equivalent derived from the previous year. The largest secondary event is M 0.9 below the reference event.

96/100Sequence score
Events in the previous 24 h0
In the first hour10
In the first 24 hours22
In the first 7 days36
Within 14 days39
Peak one-hour count10

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 d90Average 14-day equivalent3.5Activity / baseline ratio11.3×

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 6.0Magnitude gapM 0.9Observed duration12.1 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.

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

650 Felt reports · PAGER ORANGE · Tsunami indicator · Shallow

95/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.98 km ESE of Calape, Philippines10.0 km2025-09-30 13:59:43 UTCView event →
M 4.85 km ESE of Libertad, Philippines10.0 km2025-09-30 14:06:40 UTCView event →
M 5.13 km SE of Maño, Philippines10.0 km2025-09-30 14:08:05 UTCView event →
M 5.27 km ESE of Talisay, Philippines10.0 km2025-09-30 14:12:58 UTCView event →
M 4.96 km E of Calape, Philippines10.0 km2025-09-30 14:14:30 UTCView event →
M 5.21 km ENE of Anonang, Philippines10.0 km2025-09-30 14:15:58 UTCView event →
M 4.818 km ESE of Calape, Philippines10.0 km2025-09-30 14:17:10 UTCView event →
M 4.65 km NW of Palompon, Philippines10.0 km2025-09-30 14:24:35 UTCView event →
M 5.02 km NNE of Nailong, Philippines10.0 km2025-09-30 14:32:59 UTCView event →
M 5.01 km S of Guadalupe, Philippines10.0 km2025-09-30 14:39:39 UTCView event →
M 4.50 km W of Nailong, Philippines10.0 km2025-09-30 14:52:55 UTCView event →
M 4.513 km W of Tagbubungang Diot, Philippines10.0 km2025-09-30 15:59:03 UTCView event →
M 4.71 km W of Sogod, Philippines10.0 km2025-09-30 16:01:51 UTCView event →
M 4.62 km SW of Ilihan, Philippines10.0 km2025-09-30 16:04:39 UTCView event →
M 4.51 km S of Maya, Philippines10.0 km2025-09-30 16:31:44 UTCView event →
M 4.917 km WSW of Villaba, Philippines10.0 km2025-09-30 16:34:32 UTCView event →
M 4.718 km ESE of Anonang, Philippines9.9 km2025-09-30 16:48:53 UTCView event →
M 4.68 km E of Calape, Philippines10.0 km2025-09-30 18:40:02 UTCView event →
M 4.71 km NE of Medellin, Philippines10.0 km2025-09-30 19:30:28 UTCView event →
M 4.618 km W of Palompon, Philippines10.0 km2025-09-30 20:20:10 UTCView event →
M 4.51 km S of Antipolo, Philippines10.0 km2025-09-30 23:01:07 UTCView event →
M 4.611 km NW of Maravilla, Philippines10.0 km2025-10-01 07:49:00 UTCView event →
M 4.83 km E of Tabonok, Philippines10.0 km2025-10-01 13:03:03 UTCView event →
M 4.56 km W of Maño, Philippines10.0 km2025-10-01 14:27:44 UTCView event →
M 5.110 km SE of Anonang, Philippines10.0 km2025-10-01 14:46:58 UTCView event →
M 4.73 km ENE of Bagay, Philippines10.0 km2025-10-01 16:34:02 UTCView event →
M 4.511 km WNW of Santa Nino, Philippines10.0 km2025-10-02 02:01:27 UTCView event →
M 4.73 km SE of Talisay, Philippines10.0 km2025-10-02 10:21:48 UTCView event →
M 5.316 km WSW of Palompon, Philippines10.0 km2025-10-02 21:39:55 UTCView event →
M 4.629 km E of Cortes, Philippines39.8 km2025-10-03 23:02:44 UTCView event →
M 4.953 km ENE of Santa Monica, Philippines34.0 km2025-10-03 23:42:17 UTCView event →
M 5.03 km E of Maravilla, Philippines10.0 km2025-10-04 09:41:18 UTCView event →
M 4.62 km SSW of Maravilla, Philippines10.0 km2025-10-04 09:50:16 UTCView event →
M 4.515 km WSW of Jabonga, Philippines10.0 km2025-10-04 18:01:45 UTCView event →
M 4.58 km ESE of Calape, Philippines10.0 km2025-10-05 02:49:06 UTCView event →
M 4.928 km WNW of Linaon, Philippines10.0 km2025-10-07 00:03:59 UTCView event →
M 4.945 km ENE of Santa Monica, Philippines42.5 km2025-10-07 04:55:50 UTCView event →
M 4.57 km W of Silago, Philippines209.1 km2025-10-11 13:54:59 UTCView event →
M 6.03 km ESE of Bacolod, Philippines67.7 km2025-10-11 14:32:59 UTCView event →
M 5.84 km ESE of Tambongon, Philippines10.0 km2025-10-12 17:05:59 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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