Sequence · 2025-12-22

M 6.5 · Observed seismic cluster · 45 km NNE of Goroka, 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 cluster6
M6+1
Analysis radius260 km
Observation window14 days
Largest secondary eventM 5.2
Quake Pulse · Notable sequence

What the sequence shows

After the M 6.5 reference event, Quake Pulse counts 1 M4+ event(s) in the first 24 hours and 4 in the first 7 days. Fourteen-day M4.5+ activity is about 2.6× the average equivalent derived from the previous year. The largest secondary event is M 1.3 below the reference event.

58/100Sequence score
Events in the previous 24 h0
In the first hour0
In the first 24 hours1
In the first 7 days4
Within 14 days6
Peak one-hour count1

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 d60Average 14-day equivalent2.3Activity / baseline ratio2.6×

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 5.2Magnitude gapM 1.3Observed duration13.6 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.

45 km NNE of Goroka, Papua New Guinea · 260 kmInteractive 3D view of earthquakes within 260 km of 45 km NNE of Goroka, Papua New Guinea.45 km NNE of Goroka, Papua New GuineaM 5.2 · 119 km NNW of Finschhafen, Papua New Guinea · 198.0 km
45 km NNE of Goroka, Papua New Guinea260 km1 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

12 Felt reports · PAGER GREEN · Intermediate

48/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.545 km NNE of Goroka, Papua New Guinea107.0 km2025-12-22 10:31:27 UTCView event →
M 5.2119 km NNW of Finschhafen, Papua New Guinea208.2 km2025-12-23 09:54:54 UTCView event →
M 4.617 km N of Wewak, Papua New Guinea10.0 km2025-12-26 05:25:52 UTCView event →
M 4.5114 km NNE of Mount Hagen, Papua New Guinea92.7 km2025-12-26 15:29:51 UTCView event →
M 4.734 km NW of Finschhafen, Papua New Guinea66.2 km2025-12-27 08:18:17 UTCView event →
M 5.031 km S of Mendi, Papua New Guinea10.0 km2026-01-03 01:26:39 UTCView event →
M 5.2103 km N of Finschhafen, Papua New Guinea174.4 km2026-01-05 00:42:03 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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