Sequence · 2025-06-07

M 6.2 · Observed seismic cluster · western Indian-Antarctic Ridge

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 cluster9
M6+1
Analysis radius212 km
Observation window14 days
Largest secondary eventM 5.9
Quake Pulse · Strong sequence

What the sequence shows

After the M 6.2 reference event, Quake Pulse counts 4 M4+ event(s) in the first 24 hours and 7 in the first 7 days. Fourteen-day M4.5+ activity is about 16.0× the average equivalent derived from the previous year. The largest secondary event is M 0.3 below the reference event.

69/100Sequence score
Events in the previous 24 h0
In the first hour0
In the first 24 hours4
In the first 7 days7
Within 14 days8
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 d2Average 14-day equivalent0.1Activity / baseline ratio16.0×

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 5.9Magnitude gapM 0.3Observed duration12.8 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.

western Indian-Antarctic Ridge · 212 kmInteractive 3D view of earthquakes within 212 km of western Indian-Antarctic Ridge.western Indian-Antarctic RidgeM 4.8 · western Indian-Antarctic Ridge · 4.0 kmM 5.2 · western Indian-Antarctic Ridge · 10.3 kmM 5.9 · western Indian-Antarctic Ridge · 4.8 kmM 5.5 · western Indian-Antarctic Ridge · 7.4 km
western Indian-Antarctic Ridge212 km4 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

PAGER GREEN · Shallow

33/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.2western Indian-Antarctic Ridge10.0 km2025-06-07 23:20:45 UTCView event →
M 4.8western Indian-Antarctic Ridge10.0 km2025-06-08 02:31:43 UTCView event →
M 5.2western Indian-Antarctic Ridge10.0 km2025-06-08 04:56:58 UTCView event →
M 5.9western Indian-Antarctic Ridge9.0 km2025-06-08 21:15:06 UTCView event →
M 5.5western Indian-Antarctic Ridge10.0 km2025-06-08 21:28:08 UTCView event →
M 4.6western Indian-Antarctic Ridge10.0 km2025-06-10 09:12:41 UTCView event →
M 4.5western Indian-Antarctic Ridge10.0 km2025-06-10 22:54:14 UTCView event →
M 4.7western Indian-Antarctic Ridge10.0 km2025-06-14 04:51:06 UTCView event →
M 4.7western Indian-Antarctic Ridge10.0 km2025-06-20 17:49:31 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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