Explore earthquake activity year by year and month by month using the historical Quake Pulse database.
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 5.1 | 206 km S of ‘Ohonua, Tonga | 10.0 km | 2025-09-30 17:50:30 UTC | View event → |
| M 5.1 | 100 km NNE of Hihifo, Tonga | 10.0 km | 2025-09-26 06:32:33 UTC | View event → |
| M 5.0 | 176 km SE of Pangai, Tonga | 10.0 km | 2025-09-29 05:57:42 UTC | View event → |
| M 5.0 | 232 km SSW of ‘Ohonua, Tonga | 36.8 km | 2025-09-05 01:27:41 UTC | View event → |
| M 5.0 | 239 km SSW of ‘Ohonua, Tonga | 35.0 km | 2025-09-03 22:56:11 UTC | View event → |
| M 4.8 | 87 km SSE of Hihifo, Tonga | 38.3 km | 2025-09-26 11:51:13 UTC | View event → |
| M 4.7 | 274 km WNW of Houma, Tonga | 532.4 km | 2025-09-03 13:45:33 UTC | View event → |
| M 4.7 | 257 km WNW of Houma, Tonga | 469.7 km | 2025-09-02 22:12:58 UTC | View event → |
| M 4.6 | 117 km NNE of Hihifo, Tonga | 10.0 km | 2025-09-11 08:28:11 UTC | View event → |
| M 4.6 | 93 km N of Hihifo, Tonga | 10.0 km | 2025-09-08 16:58:21 UTC | View event → |
| M 4.5 | 166 km SSW of Hihifo, Tonga | 206.5 km | 2025-09-23 19:56:45 UTC | View event → |
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.
Magnitude is only one part of the story. Depth, distance, local ground conditions and building vulnerability help explain why shaking can differ so much from one earthquake to another.
Read article →
Earthquake-resistant design is not about making buildings immovable. It is about controlling forces, deformation and failure so people have a much better chance of staying safe.
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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.
Read article →
