Sequence · 2018-05-04

M 6.9 · Observed seismic cluster · 18 km SSW of Leilani Estates, Hawaii

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 cluster8
M6+1
Analysis radius324 km
Observation window14 days
Largest secondary eventM 5.0
Quake Pulse

Sequence timeline

Within first 24 hours6
Within first 7 days6
Observed duration12.6 d
Gap from reference eventM 1.9
0 h12.6 d
Quake Pulse

Main-event impact

1,630 Felt reports · PAGER YELLOW · Tsunami indicator · Shallow

87/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.918 km SSW of Leilani Estates, Hawaii5.8 km2018-05-04 22:32:54 UTCView event →
M 4.618 km S of Volcano, Hawaii7.9 km2018-05-04 22:37:18 UTCView event →
M 4.614 km S of Volcano, Hawaii7.7 km2018-05-04 22:42:42 UTCView event →
M 4.79 km WSW of Volcano, Hawaii2.6 km2018-05-04 22:48:19 UTCView event →
M 4.917 km E of P?hala, Hawaii9.3 km2018-05-05 00:37:10 UTCView event →
M 4.822 km SE of Leilani Estates, Hawaii10.6 km2018-05-05 01:20:27 UTCView event →
M 5.06 km SW of Volcano, Hawaii0.0 km2018-05-17 04:15:30 UTCView event →
M 5.06 km SW of Volcano, Hawaii0.0 km2018-05-17 14:04:10 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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