Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.
1 Felt reports · PAGER GREEN · Tsunami indicator · Shallow
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 6.5 | 96 km ENE of Hihifo, Tonga | 11.0 km | 2015-03-30 08:48:25 UTC | View event → |
| M 5.2 | 93 km NE of Hihifo, Tonga | 10.0 km | 2015-03-30 08:50:42 UTC | View event → |
| M 5.8 | 115 km ENE of Hihifo, Tonga | 9.6 km | 2015-03-30 18:02:10 UTC | View event → |
| M 5.5 | 103 km E of Hihifo, Tonga | 10.0 km | 2015-04-01 11:06:35 UTC | View event → |
| M 4.7 | 109 km NE of Hihifo, Tonga | 10.0 km | 2015-04-06 14:06:07 UTC | View event → |
| M 6.3 | 106 km NE of Hihifo, Tonga | 30.0 km | 2015-04-07 00:46:21 UTC | View event → |
| M 4.6 | 105 km ENE of Hihifo, Tonga | 10.0 km | 2015-04-11 10:07:23 UTC | View event → |
| M 4.5 | 96 km NNE of Hihifo, Tonga | 10.0 km | 2015-04-12 09:01:21 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.
Guides, explainers and practical reading to go beyond the live data.
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Early-warning systems detect an earthquake after it starts and try to send an alert before the strongest shaking arrives. The difference between warning and prediction matters.
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