Explore earthquake activity year by year and month by month using the historical Quake Pulse database.
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 6.4 | 186 km NW of Neiafu, Tonga | 274.9 km | 2003-03-14 12:54:12 UTC | View event → |
| M 6.2 | 76 km NNE of Hihifo, Tonga | 41.2 km | 2003-03-28 17:31:47 UTC | View event → |
| M 5.8 | 266 km SSW of ‘Ohonua, Tonga | 10.0 km | 2003-03-06 10:24:42 UTC | View event → |
| M 4.9 | south of Tonga | 29.1 km | 2003-03-14 19:24:17 UTC | View event → |
| M 4.9 | 165 km W of Neiafu, Tonga | 222.3 km | 2003-03-03 11:06:36 UTC | View event → |
| M 4.8 | 265 km SSW of ‘Ohonua, Tonga | 10.0 km | 2003-03-10 20:14:11 UTC | View event → |
| M 4.8 | 88 km S of Hihifo, Tonga | 33.0 km | 2003-03-10 19:37:46 UTC | View event → |
| M 4.8 | 267 km SSW of ‘Ohonua, Tonga | 10.0 km | 2003-03-08 14:48:12 UTC | View event → |
| M 4.8 | 79 km NNE of Hihifo, Tonga | 33.0 km | 2003-03-01 01:12:32 UTC | View event → |
| M 4.7 | 96 km SSE of Hihifo, Tonga | 89.7 km | 2003-03-22 21:26:58 UTC | View event → |
| M 4.7 | 103 km W of Hihifo, Tonga | 33.0 km | 2003-03-19 11:07:56 UTC | View event → |
| M 4.6 | south of Tonga | 27.9 km | 2003-03-15 01:06:38 UTC | View event → |
| M 4.6 | 106 km NW of Neiafu, Tonga | 133.4 km | 2003-03-14 14:54:21 UTC | View event → |
| M 4.6 | 193 km WSW of Haveluloto, Tonga | 171.4 km | 2003-03-02 08:58:17 UTC | View event → |
| M 4.5 | 207 km NW of Neiafu, Tonga | 300.0 km | 2003-03-20 20:43:42 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.
Read article →
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 →
