Quake Pulse logoQuake Pulse
Sequence · 2003-09-29

M 6.5 · Observed seismic cluster · 58 km S 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 cluster57
M6+2
Analysis radius260 km
Observation window14 days
Largest secondary eventM 6.7
Quake Pulse

Sequence timeline

Within first 24 hours13
Within first 7 days35
Observed duration14.0 d
Gap from reference eventM 0.0
0 h14.0 d
Quake Pulse

Main-event impact

Shallow

43/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.558 km S of Kushiro, Japan25.0 km2003-09-29 02:36:53 UTCView event →
M 5.474 km SSW of Kushiro, Japan33.0 km2003-09-29 07:49:56 UTCView event →
M 4.776 km SSW of Kushiro, Japan47.4 km2003-09-29 10:44:30 UTCView event →
M 4.550 km SSW of Kushiro, Japan33.0 km2003-09-29 12:43:01 UTCView event →
M 5.5103 km S of Kushiro, Japan33.0 km2003-09-29 14:22:14 UTCView event →
M 4.761 km S of Kushiro, Japan33.0 km2003-09-29 14:27:19 UTCView event →
M 4.7173 km SE of Shizunai-furukawach?, Japan33.0 km2003-09-29 17:31:18 UTCView event →
M 4.795 km SSE of Kushiro, Japan33.0 km2003-09-29 20:24:40 UTCView event →
M 5.6175 km S of Kushiro, Japan33.0 km2003-09-29 21:22:11 UTCView event →
M 4.9163 km SE of Shizunai-furukawach?, Japan33.0 km2003-09-29 21:28:17 UTCView event →
M 4.9159 km SE of Shizunai-furukawach?, Japan33.0 km2003-09-29 21:33:20 UTCView event →
M 5.3176 km S of Kushiro, Japan33.0 km2003-09-29 22:09:18 UTCView event →
M 5.0116 km SSE of Kushiro, Japan33.0 km2003-09-29 23:24:25 UTCView event →
M 4.8168 km S of Kushiro, Japan33.0 km2003-09-30 08:49:59 UTCView event →
M 4.531 km S of Shizunai-furukawach?, Japan65.2 km2003-09-30 16:24:47 UTCView event →
M 5.1117 km SSE of Kushiro, Japan33.0 km2003-10-01 01:30:24 UTCView event →
M 4.9175 km SE of Shizunai-furukawach?, Japan33.0 km2003-10-01 04:10:07 UTCView event →
M 4.5104 km SSW of Kushiro, Japan33.0 km2003-10-01 10:25:38 UTCView event →
M 5.4107 km S of Kushiro, Japan33.0 km2003-10-01 16:23:29 UTCView event →
M 4.8131 km S of Kushiro, Japan33.0 km2003-10-01 17:22:15 UTCView event →
M 5.3140 km SE of Shizunai-furukawach?, Japan33.0 km2003-10-01 23:04:53 UTCView event →
M 4.6119 km S of Kushiro, Japan33.0 km2003-10-02 00:34:45 UTCView event →
M 4.7171 km SE of Shizunai-furukawach?, Japan33.0 km2003-10-02 05:58:24 UTCView event →
M 5.2102 km ESE of Shizunai-furukawach?, Japan33.0 km2003-10-03 04:45:18 UTCView event →
M 4.8137 km SE of Shizunai-furukawach?, Japan33.0 km2003-10-03 07:01:53 UTCView event →
M 4.663 km SE of Obihiro, Japan33.0 km2003-10-03 11:25:41 UTCView event →
M 4.842 km E of Shizunai-furukawach?, Japan33.0 km2003-10-03 20:38:38 UTCView event →
M 5.198 km SSE of Kushiro, Japan33.0 km2003-10-04 03:10:32 UTCView event →
M 4.896 km SSE of Kushiro, Japan33.0 km2003-10-04 05:03:05 UTCView event →
M 4.8109 km S of Kushiro, Japan33.0 km2003-10-04 09:50:35 UTCView event →
M 4.669 km SSW of Shizunai-furukawach?, Japan33.0 km2003-10-04 14:41:07 UTCView event →
M 4.698 km SSE of Kushiro, Japan33.0 km2003-10-05 00:18:00 UTCView event →
M 4.8105 km SSE of Kushiro, Japan33.0 km2003-10-05 00:19:57 UTCView event →
M 4.695 km SSE of Obihiro, Japan35.6 km2003-10-05 05:30:17 UTCView event →
M 4.5116 km SSW of Kushiro, Japan33.0 km2003-10-05 09:13:25 UTCView event →
M 4.5111 km S of Kushiro, Japan33.0 km2003-10-06 07:56:22 UTCView event →
M 4.880 km S of Kushiro, Japan33.0 km2003-10-06 10:19:05 UTCView event →
M 4.839 km S of Shizunai-furukawach?, Japan73.4 km2003-10-06 16:27:54 UTCView event →
M 4.9122 km SSE of Kushiro, Japan33.0 km2003-10-06 19:23:18 UTCView event →
M 5.585 km SSE of Kushiro, Japan33.0 km2003-10-06 19:26:15 UTCView event →
M 5.192 km SSE of Kushiro, Japan33.0 km2003-10-07 08:00:31 UTCView event →
M 4.986 km SSE of Kushiro, Japan33.0 km2003-10-07 11:40:28 UTCView event →
M 5.261 km SSE of Kushiro, Japan33.0 km2003-10-07 17:40:52 UTCView event →
M 4.6133 km SSW of Kushiro, Japan33.0 km2003-10-07 19:30:20 UTCView event →
M 6.739 km SSE of Kushiro, Japan32.0 km2003-10-08 09:06:55 UTCView event →
M 5.987 km SSE of Kushiro, Japan33.0 km2003-10-08 13:32:09 UTCView event →
M 4.982 km S of Kushiro, Japan33.0 km2003-10-08 15:18:32 UTCView event →
M 5.888 km SSE of Kushiro, Japan33.0 km2003-10-08 23:15:17 UTCView event →
M 4.5152 km SSE of Kushiro, Japan33.0 km2003-10-09 03:13:45 UTCView event →
M 5.6134 km SE of Shizunai-furukawach?, Japan33.0 km2003-10-09 06:52:57 UTCView event →
M 5.1105 km SSE of Kushiro, Japan33.0 km2003-10-10 12:58:20 UTCView event →
M 5.8116 km S of Kushiro, Japan33.0 km2003-10-11 00:08:49 UTCView event →
M 5.3124 km S of Kushiro, Japan33.0 km2003-10-11 00:36:00 UTCView event →
M 4.5101 km S of Kushiro, Japan33.0 km2003-10-11 00:47:32 UTCView event →
M 5.6127 km ESE of Shizunai-furukawach?, Japan33.0 km2003-10-11 18:26:18 UTCView event →
M 4.670 km S of Kushiro, Japan33.0 km2003-10-12 06:36:28 UTCView event →
M 4.6Hokkaido, Japan region33.0 km2003-10-13 01:36:31 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.

Blog

Latest from the blog

Guides, explainers and practical reading to go beyond the live data.

View all articles →