Explore earthquake activity year by year and month by month using the historical Quake Pulse database.
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 6.2 | 89 km N of Hihifo, Tonga | 33.0 km | 2003-05-03 05:03:03 UTC | View event → |
| M 5.0 | 162 km S of ‘Ohonua, Tonga | 33.0 km | 2003-05-21 09:04:02 UTC | View event → |
| M 4.9 | 281 km SSW of ‘Ohonua, Tonga | 33.0 km | 2003-05-29 06:01:06 UTC | View event → |
| M 4.8 | 249 km SW of Vaini, Tonga | 113.2 km | 2003-05-15 07:11:29 UTC | View event → |
| M 4.8 | 210 km SW of ‘Ohonua, Tonga | 33.0 km | 2003-05-07 14:18:06 UTC | View event → |
| M 4.7 | 61 km W of Hihifo, Tonga | 163.9 km | 2003-05-20 19:10:16 UTC | View event → |
| M 4.6 | 73 km W of Neiafu, Tonga | 33.0 km | 2003-05-08 13:08:11 UTC | View event → |
| M 4.6 | 111 km NE of Hihifo, Tonga | 34.6 km | 2003-05-05 13:59:23 UTC | View event → |
| M 4.6 | 207 km SSW of Vaini, Tonga | 33.0 km | 2003-05-03 11:24:13 UTC | View event → |
| M 4.5 | 105 km E of Hihifo, Tonga | 30.5 km | 2003-05-25 15:39:12 UTC | View event → |
| M 4.5 | 293 km WNW of Haveluloto, Tonga | 400.0 km | 2003-05-21 04:11:06 UTC | View event → |
| M 4.5 | 180 km SSE of Hihifo, Tonga | 33.0 km | 2003-05-17 11:35:28 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.
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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 →
