Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.
After the M 6.7 reference event, Quake Pulse counts 5 M4+ event(s) in the first 24 hours and 14 in the first 7 days. Fourteen-day M4.5+ activity is about 3.1× the average equivalent derived from the previous year. The largest secondary event is M 1.1 below the reference event.
Descriptive comparison with M4.5+ events observed in the same radius during the 365 days before the sequence.
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.
Earlier events are shown as context only. They are not labelled precursors and should not be interpreted as predictive signals.
Shows M4+ cluster events according to elapsed time after the reference event.
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.
21 Felt reports · PAGER GREEN · Tsunami indicator · Shallow
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 6.7 | 117 km NE of Kuji, Japan | 19.0 km | 2025-12-12 02:44:12 UTC | View event → |
| M 4.6 | 126 km NE of Kuji, Japan | 35.0 km | 2025-12-12 03:06:35 UTC | View event → |
| M 5.3 | 125 km S of Honchō, Japan | 32.6 km | 2025-12-12 03:21:39 UTC | View event → |
| M 4.7 | 131 km S of Honchō, Japan | 38.9 km | 2025-12-12 03:26:12 UTC | View event → |
| M 4.6 | 126 km NE of Kuji, Japan | 35.0 km | 2025-12-12 04:58:22 UTC | View event → |
| M 4.6 | 106 km E of Yokohama, Japan | 60.7 km | 2025-12-12 07:55:43 UTC | View event → |
| M 4.6 | 76 km ENE of Misawa, Japan | 66.8 km | 2025-12-13 05:59:44 UTC | View event → |
| M 4.5 | 166 km ENE of Noda, Japan | 31.8 km | 2025-12-13 21:49:37 UTC | View event → |
| M 5.0 | 145 km E of Miyako, Japan | 10.0 km | 2025-12-14 07:58:11 UTC | View event → |
| M 4.7 | 106 km SSW of Honchō, Japan | 45.7 km | 2025-12-14 18:09:28 UTC | View event → |
| M 4.5 | 29 km S of Ōfunato, Japan | 94.3 km | 2025-12-16 02:45:35 UTC | View event → |
| M 5.1 | 133 km S of Honchō, Japan | 35.0 km | 2025-12-16 05:38:51 UTC | View event → |
| M 5.0 | 94 km E of Mutsu, Japan | 52.0 km | 2025-12-17 09:50:18 UTC | View event → |
| M 4.6 | 96 km ENE of Miyako, Japan | 42.2 km | 2025-12-18 00:50:42 UTC | View event → |
| M 4.6 | 100 km E of Miyako, Japan | 41.6 km | 2025-12-18 05:20:11 UTC | View event → |
| M 4.7 | 113 km E of Miyako, Japan | 36.2 km | 2025-12-19 21:40:07 UTC | View event → |
| M 5.2 | 78 km SSE of Nemuro, Japan | 10.0 km | 2025-12-20 12:30:27 UTC | View event → |
| M 4.8 | 75 km SE of Nemuro, Japan | 30.4 km | 2025-12-20 12:33:54 UTC | View event → |
| M 5.2 | 70 km SSE of Nemuro, Japan | 35.0 km | 2025-12-20 12:58:54 UTC | View event → |
| M 5.4 | 57 km ENE of Misawa, Japan | 57.2 km | 2025-12-21 01:29:03 UTC | View event → |
| M 5.6 | 103 km E of Yokohama, Japan | 54.1 km | 2025-12-25 16:17:41 UTC | View event → |
| M 4.6 | 101 km E of Yokohama, Japan | 56.5 km | 2025-12-25 16:25:51 UTC | View event → |
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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