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Sequence · 2025-04-12

M 6.1 · Observed seismic cluster · 104 km ESE of Kokopo, 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 radius196 km
Observation window14 days
Largest secondary eventM 4.8
Quake Pulse · Strong sequence

What the sequence shows

After the M 6.1 reference event, Quake Pulse counts 2 M4+ event(s) in the first 24 hours and 24 in the first 7 days. Fourteen-day M4.5+ activity is about 4.2× the average equivalent derived from the previous year. The largest secondary event is M 1.0 below the reference event.

62/100Sequence score
Events in the previous 24 h0
In the first hour0
In the first 24 hours2
In the first 7 days24
Within 14 days32
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 d197Average 14-day equivalent7.6Activity / baseline ratio4.2×

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 5.1Magnitude gapM 1.0Observed duration13.7 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
104 km ESE of Kokopo, Papua New Guinea · 196 kmInteractive 3D view of earthquakes within 196 km of 104 km ESE of Kokopo, Papua New Guinea.104 km ESE of Kokopo, Papua New GuineaM 4.5 · 168 km ESE of Kimbe, Papua New Guinea · 254.9 kmM 4.8 · 199 km ESE of Kimbe, Papua New Guinea · 219.0 km
104 km ESE of Kokopo, Papua New Guinea196 km2 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

4 Felt reports · PAGER GREEN · Shallow

39/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.1104 km ESE of Kokopo, Papua New Guinea52.0 km2025-04-12 03:47:08 UTCView event →
M 4.5168 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-12 12:52:25 UTCView event →
M 4.8199 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-13 00:33:16 UTCView event →
M 4.5203 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-13 07:34:12 UTCView event →
M 4.7189 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-13 07:58:29 UTCView event →
M 5.1198 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-13 10:47:14 UTCView event →
M 5.0203 km S of Kokopo, Papua New Guinea10.0 km2025-04-13 13:59:26 UTCView event →
M 4.5162 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-13 21:04:37 UTCView event →
M 4.5189 km S of Kokopo, Papua New Guinea10.0 km2025-04-14 06:11:14 UTCView event →
M 4.8203 km S of Kokopo, Papua New Guinea10.0 km2025-04-14 08:17:28 UTCView event →
M 4.5199 km S of Kokopo, Papua New Guinea10.0 km2025-04-15 07:04:50 UTCView event →
M 4.5200 km S of Kokopo, Papua New Guinea10.0 km2025-04-15 15:39:46 UTCView event →
M 4.6181 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-16 12:50:54 UTCView event →
M 4.6171 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-16 16:10:18 UTCView event →
M 4.6145 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-17 00:12:42 UTCView event →
M 4.5183 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-17 01:51:49 UTCView event →
M 4.7213 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-17 16:01:12 UTCView event →
M 4.8177 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-17 16:01:47 UTCView event →
M 4.8165 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-18 00:01:58 UTCView event →
M 5.1171 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-18 07:24:13 UTCView event →
M 4.7168 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-18 07:33:31 UTCView event →
M 4.9156 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-18 07:58:42 UTCView event →
M 4.5193 km S of Kokopo, Papua New Guinea10.0 km2025-04-18 13:49:23 UTCView event →
M 4.6175 km S of Kokopo, Papua New Guinea10.0 km2025-04-18 13:57:20 UTCView event →
M 4.9195 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-18 19:42:15 UTCView event →
M 4.8193 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-19 20:25:31 UTCView event →
M 4.9156 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-22 21:42:15 UTCView event →
M 4.5187 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-23 01:18:33 UTCView event →
M 5.1176 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-23 10:11:32 UTCView event →
M 4.6199 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-23 16:19:52 UTCView event →
M 4.9192 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-24 21:30:22 UTCView event →
M 4.5179 km ESE of Kimbe, Papua New Guinea10.0 km2025-04-25 13:33:21 UTCView event →
M 4.8208 km S of Kokopo, Papua New Guinea10.0 km2025-04-25 20:26:01 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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