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Sequence · 2008-07-19

M 7.0 · Observed seismic cluster · 107 km E of Namie, Japan

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 cluster10
M6+3
Analysis radius340 km
Observation window14 days
Largest secondary eventM 6.8
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Sequence timeline

Within first 24 hours3
Within first 7 days10
Observed duration5.9 d
Gap from reference eventM 0.2
0 h5.9 d
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Main-event impact

163 Felt reports · Shallow

62/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 7.0107 km E of Namie, Japan22.0 km2008-07-19 02:39:28 UTCView event →
M 5.3124 km E of Namie, Japan31.4 km2008-07-19 02:47:29 UTCView event →
M 4.6165 km E of Namie, Japan10.0 km2008-07-20 02:22:53 UTCView event →
M 4.5169 km E of Namie, Japan30.9 km2008-07-20 20:48:10 UTCView event →
M 5.0128 km ESE of Ishinomaki, Japan10.0 km2008-07-21 09:01:04 UTCView event →
M 6.098 km ESE of Namie, Japan22.0 km2008-07-21 11:30:29 UTCView event →
M 5.4117 km SE of Ishinomaki, Japan10.0 km2008-07-22 08:46:47 UTCView event →
M 6.829 km ENE of Morioka, Japan108.0 km2008-07-23 15:26:19 UTCView event →
M 5.233 km ESE of Morioka, Japan111.9 km2008-07-24 02:27:53 UTCView event →
M 4.5145 km E of Namie, Japan29.4 km2008-07-25 00:39:23 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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