Sequence · 2025-10-10

M 6.3 · Observed seismic cluster · 139 km SE of Lorengau, Papua New Guinea

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 cluster5
M6+1
Analysis radius228 km
Observation window14 days
Largest secondary eventM 5.1
Quake Pulse · Notable sequence

What the sequence shows

After the M 6.3 reference event, Quake Pulse counts 3 M4+ event(s) in the first 24 hours and 4 in the first 7 days. Fourteen-day M4.5+ activity is about 6.1× the average equivalent derived from the previous year. The largest secondary event is M 1.2 below the reference event.

56/100Sequence score
Events in the previous 24 h0
In the first hour1
In the first 24 hours3
In the first 7 days4
Within 14 days4
Peak one-hour count2

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 d17Average 14-day equivalent0.7Activity / baseline ratio6.1×

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 5.1Magnitude gapM 1.2Observed duration1.3 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.

139 km SE of Lorengau, Papua New Guinea · 228 kmInteractive 3D view of earthquakes within 228 km of 139 km SE of Lorengau, Papua New Guinea.139 km SE of Lorengau, Papua New GuineaM 4.6 · 231 km SE of Lorengau, Papua New Guinea · 102.8 kmM 5.1 · 215 km WSW of Kavieng, Papua New Guinea · 111.9 kmM 4.8 · 211 km WSW of Kavieng, Papua New Guinea · 120.6 km
139 km SE of Lorengau, Papua New Guinea228 km3 Recent earthquakes

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

1 Felt reports · PAGER GREEN · Shallow

41/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.3139 km SE of Lorengau, Papua New Guinea10.0 km2025-10-10 02:08:10 UTCView event →
M 4.6231 km SE of Lorengau, Papua New Guinea10.0 km2025-10-10 02:36:18 UTCView event →
M 5.1215 km WSW of Kavieng, Papua New Guinea10.0 km2025-10-10 05:46:39 UTCView event →
M 4.8211 km WSW of Kavieng, Papua New Guinea10.0 km2025-10-10 05:51:46 UTCView event →
M 4.9179 km SE of Lorengau, Papua New Guinea10.0 km2025-10-11 08:35:22 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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