Explore earthquake activity year by year and month by month using the historical Quake Pulse database.
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 6.6 | 142 km W of Haveluloto, Tonga | 212.9 km | 2003-07-27 02:04:11 UTC | View event → |
| M 6.0 | 44 km E of ‘Ohonua, Tonga | 10.0 km | 2003-07-03 06:21:50 UTC | View event → |
| M 5.7 | 165 km NW of Neiafu, Tonga | 226.1 km | 2003-07-26 13:45:25 UTC | View event → |
| M 5.4 | 121 km NE of Neiafu, Tonga | 33.0 km | 2003-07-18 02:28:25 UTC | View event → |
| M 5.3 | 57 km ENE of Kolonga, Tonga | 33.0 km | 2003-07-04 01:15:56 UTC | View event → |
| M 5.3 | 70 km WNW of Neiafu, Tonga | 92.5 km | 2003-07-03 18:57:27 UTC | View event → |
| M 5.2 | 264 km W of Hihifo, Tonga | 366.1 km | 2003-07-27 03:20:48 UTC | View event → |
| M 5.2 | 73 km ESE of Neiafu, Tonga | 33.0 km | 2003-07-22 02:13:24 UTC | View event → |
| M 5.1 | 62 km E of ‘Ohonua, Tonga | 33.0 km | 2003-07-14 18:19:42 UTC | View event → |
| M 4.8 | 110 km SW of Hihifo, Tonga | 100.0 km | 2003-07-15 06:08:01 UTC | View event → |
| M 4.8 | 78 km NNE of Hihifo, Tonga | 33.0 km | 2003-07-01 13:10:58 UTC | View event → |
| M 4.7 | 79 km NNE of Hihifo, Tonga | 33.0 km | 2003-07-01 13:45:30 UTC | View event → |
| M 4.6 | 92 km N of Hihifo, Tonga | 33.0 km | 2003-07-27 23:12:04 UTC | View event → |
| M 4.6 | 107 km N of Hihifo, Tonga | 33.0 km | 2003-07-08 07:40:46 UTC | View event → |
| M 4.6 | 83 km NNE of Hihifo, Tonga | 33.0 km | 2003-07-01 12:10:13 UTC | View event → |
| M 4.5 | 88 km NW of Neiafu, Tonga | 100.0 km | 2003-07-20 16:34:23 UTC | View event → |
| M 4.5 | 214 km SW of Hihifo, Tonga | 33.0 km | 2003-07-08 20:22:30 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 →
