Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.
After the M 7.4 reference event, Quake Pulse counts 20 M4+ event(s) in the first 24 hours and 33 in the first 7 days. Fourteen-day M4.5+ activity is about 3.2× the average equivalent derived from the previous year. The largest secondary event is M 1.4 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.
136 Felt reports · PAGER GREEN · Tsunami indicator · Shallow
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 7.4 | 102 km ENE of Miyako, Japan | 25.0 km | 2026-04-20 07:52:58 UTC | View event → |
| M 6.0 | 100 km E of Miyako, Japan | 35.0 km | 2026-04-20 07:56:49 UTC | View event → |
| M 5.3 | 135 km E of Miyako, Japan | 31.6 km | 2026-04-20 08:01:32 UTC | View event → |
| M 5.3 | 117 km E of Yamada, Japan | 35.0 km | 2026-04-20 08:02:53 UTC | View event → |
| M 5.4 | 143 km ENE of Miyako, Japan | 34.9 km | 2026-04-20 08:03:05 UTC | View event → |
| M 4.6 | 90 km ENE of Miyako, Japan | 30.3 km | 2026-04-20 08:08:19 UTC | View event → |
| M 4.9 | 114 km ENE of Miyako, Japan | 35.0 km | 2026-04-20 08:08:54 UTC | View event → |
| M 4.6 | 118 km E of Miyako, Japan | 40.1 km | 2026-04-20 08:14:48 UTC | View event → |
| M 4.6 | 124 km E of Miyako, Japan | 15.9 km | 2026-04-20 08:15:19 UTC | View event → |
| M 4.6 | 104 km E of Miyako, Japan | 31.5 km | 2026-04-20 08:30:10 UTC | View event → |
| M 5.4 | 111 km E of Miyako, Japan | 30.1 km | 2026-04-20 08:32:48 UTC | View event → |
| M 5.4 | 100 km E of Yamada, Japan | 35.0 km | 2026-04-20 08:33:36 UTC | View event → |
| M 5.1 | 127 km ENE of Miyako, Japan | 35.0 km | 2026-04-20 09:49:44 UTC | View event → |
| M 5.1 | 133 km E of Yamada, Japan | 10.0 km | 2026-04-20 10:44:10 UTC | View event → |
| M 4.5 | 98 km E of Miyako, Japan | 31.6 km | 2026-04-20 11:28:59 UTC | View event → |
| M 5.1 | 118 km E of Yamada, Japan | 25.6 km | 2026-04-20 12:56:47 UTC | View event → |
| M 4.7 | 119 km ENE of Miyako, Japan | 29.5 km | 2026-04-20 14:15:28 UTC | View event → |
| M 4.5 | 136 km E of Yamada, Japan | 10.0 km | 2026-04-20 16:13:12 UTC | View event → |
| M 4.8 | 110 km ENE of Miyako, Japan | 25.1 km | 2026-04-21 02:35:46 UTC | View event → |
| M 4.7 | 151 km E of Miyako, Japan | 10.0 km | 2026-04-21 05:19:56 UTC | View event → |
| M 5.3 | 142 km ENE of Miyako, Japan | 10.0 km | 2026-04-21 05:29:09 UTC | View event → |
| M 5.5 | 121 km E of Noda, Japan | 16.0 km | 2026-04-21 18:44:09 UTC | View event → |
| M 5.3 | 111 km ENE of Miyako, Japan | 35.0 km | 2026-04-22 00:01:12 UTC | View event → |
| M 4.5 | 54 km E of Noda, Japan | 35.0 km | 2026-04-22 12:06:22 UTC | View event → |
| M 5.1 | 103 km ENE of Miyako, Japan | 35.0 km | 2026-04-22 12:18:35 UTC | View event → |
| M 4.9 | 102 km E of Miyako, Japan | 35.0 km | 2026-04-22 13:35:26 UTC | View event → |
| M 4.6 | 100 km ENE of Miyako, Japan | 35.0 km | 2026-04-22 14:26:20 UTC | View event → |
| M 4.5 | 16 km E of Noda, Japan | 59.0 km | 2026-04-22 17:46:39 UTC | View event → |
| M 4.8 | 120 km E of Miyako, Japan | 34.4 km | 2026-04-23 00:07:59 UTC | View event → |
| M 5.0 | 85 km E of Noda, Japan | 35.0 km | 2026-04-24 05:13:10 UTC | View event → |
| M 4.8 | 105 km ENE of Miyako, Japan | 33.7 km | 2026-04-25 20:41:31 UTC | View event → |
| M 4.7 | 79 km E of Noda, Japan | 35.0 km | 2026-04-26 06:43:53 UTC | View event → |
| M 5.0 | 77 km E of Noda, Japan | 35.0 km | 2026-04-26 16:57:22 UTC | View event → |
| M 5.9 | 22 km W of Sarabetsu, Japan | 81.0 km | 2026-04-26 20:23:55 UTC | View event → |
| M 4.8 | 79 km E of Noda, Japan | 35.0 km | 2026-04-28 07:24:46 UTC | View event → |
| M 4.5 | 71 km ENE of Noda, Japan | 41.5 km | 2026-04-28 10:14:57 UTC | View event → |
| M 4.5 | 95 km ENE of Kuji, Japan | 44.7 km | 2026-04-30 08:43:19 UTC | View event → |
| M 4.8 | 38 km SSW of Nemuro, Japan | 48.7 km | 2026-05-01 17:19:26 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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