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Sequence · 2012-03-14

M 6.9 · Observed seismic cluster · 236 km SSE of Kushiro, 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 cluster44
M6+3
Analysis radius324 km
Observation window14 days
Largest secondary eventM 6.1
Quake Pulse

Sequence timeline

Within first 24 hours23
Within first 7 days35
Observed duration13.8 d
Gap from reference eventM 0.8
0 h13.8 d
Quake Pulse

Main-event impact

118 Felt reports · Shallow

58/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.9236 km SSE of Kushiro, Japan12.0 km2012-03-14 09:08:35 UTCView event →
M 4.9244 km SSE of Kushiro, Japan10.0 km2012-03-14 09:19:40 UTCView event →
M 4.5238 km S of Kushiro, Japan10.0 km2012-03-14 09:33:15 UTCView event →
M 6.1245 km S of Kushiro, Japan10.0 km2012-03-14 10:49:24 UTCView event →
M 4.7232 km S of Kushiro, Japan10.0 km2012-03-14 10:56:37 UTCView event →
M 5.6211 km SE of Hiroo, Japan12.0 km2012-03-14 10:57:40 UTCView event →
M 5.4233 km S of Kushiro, Japan10.0 km2012-03-14 11:40:17 UTCView event →
M 4.9230 km S of Kushiro, Japan4.2 km2012-03-14 13:43:10 UTCView event →
M 4.6230 km S of Kushiro, Japan7.1 km2012-03-14 14:04:08 UTCView event →
M 4.6229 km SSE of Kushiro, Japan10.0 km2012-03-14 14:54:20 UTCView event →
M 4.7251 km SSE of Kushiro, Japan20.3 km2012-03-14 15:42:42 UTCView event →
M 4.7237 km S of Kushiro, Japan10.0 km2012-03-14 16:26:49 UTCView event →
M 4.7238 km S of Kushiro, Japan1.3 km2012-03-14 17:26:14 UTCView event →
M 4.6off the east coast of Honshu, Japan7.8 km2012-03-14 18:08:07 UTCView event →
M 4.8231 km S of Kushiro, Japan10.0 km2012-03-14 19:55:02 UTCView event →
M 4.9241 km S of Kushiro, Japan25.3 km2012-03-14 20:00:55 UTCView event →
M 4.7234 km SSE of Kushiro, Japan12.3 km2012-03-14 23:01:52 UTCView event →
M 4.7210 km ESE of Yamada, Japan24.7 km2012-03-15 00:09:13 UTCView event →
M 4.8233 km SSE of Kushiro, Japan2.4 km2012-03-15 03:17:42 UTCView event →
M 4.6243 km SSE of Kushiro, Japan35.0 km2012-03-15 03:54:45 UTCView event →
M 4.7239 km S of Kushiro, Japan10.0 km2012-03-15 07:01:32 UTCView event →
M 4.6233 km SSE of Kushiro, Japan10.0 km2012-03-15 07:50:40 UTCView event →
M 4.7251 km SSE of Kushiro, Japan10.0 km2012-03-15 08:47:30 UTCView event →
M 4.8104 km ENE of Miyako, Japan43.2 km2012-03-15 13:20:29 UTCView event →
M 4.6241 km SSE of Kushiro, Japan20.2 km2012-03-15 17:09:29 UTCView event →
M 4.8216 km E of Yamada, Japan20.1 km2012-03-16 06:26:12 UTCView event →
M 4.5240 km S of Kushiro, Japan16.6 km2012-03-17 01:11:35 UTCView event →
M 4.8246 km SSE of Kushiro, Japan10.0 km2012-03-17 10:16:25 UTCView event →
M 4.6241 km S of Kushiro, Japan10.0 km2012-03-17 13:12:55 UTCView event →
M 4.930 km ESE of Kamaishi, Japan57.5 km2012-03-18 00:36:31 UTCView event →
M 4.966 km ENE of Mutsu, Japan81.7 km2012-03-19 02:56:03 UTCView event →
M 4.644 km ENE of Nemuro, Japan103.7 km2012-03-19 10:23:19 UTCView event →
M 4.8244 km S of Kushiro, Japan13.6 km2012-03-19 23:35:03 UTCView event →
M 4.8251 km S of Kushiro, Japan10.0 km2012-03-20 05:57:50 UTCView event →
M 4.8247 km S of Kushiro, Japan35.0 km2012-03-20 07:27:50 UTCView event →
M 4.6248 km SSE of Kushiro, Japan35.0 km2012-03-22 01:16:52 UTCView event →
M 4.5241 km SSE of Kushiro, Japan35.0 km2012-03-24 00:26:18 UTCView event →
M 4.765 km SE of Kushiro, Japan15.3 km2012-03-24 21:54:53 UTCView event →
M 4.7263 km SSE of Kushiro, Japan10.0 km2012-03-25 14:50:46 UTCView event →
M 4.772 km ESE of Hachinohe, Japan43.6 km2012-03-26 02:33:51 UTCView event →
M 6.124 km NNE of Miyako, Japan15.0 km2012-03-27 11:00:44 UTCView event →
M 4.7134 km E of Miyako, Japan24.2 km2012-03-27 13:21:03 UTCView event →
M 4.933 km ENE of Miyako, Japan58.9 km2012-03-28 01:54:01 UTCView event →
M 4.5255 km SSE of Kushiro, Japan35.0 km2012-03-28 03:18:28 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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