Explore earthquake activity year by year and month by month using the historical Quake Pulse database.
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 5.8 | 51 km N of Kolonga, Tonga | 55.8 km | 2004-02-25 16:52:31 UTC | View event → |
| M 5.8 | 80 km SE of Neiafu, Tonga | 21.2 km | 2004-02-12 13:47:32 UTC | View event → |
| M 5.4 | 71 km SE of Neiafu, Tonga | 20.7 km | 2004-02-16 07:38:24 UTC | View event → |
| M 5.2 | 76 km SE of Neiafu, Tonga | 10.0 km | 2004-02-18 12:12:30 UTC | View event → |
| M 5.1 | 124 km WSW of Hihifo, Tonga | 10.0 km | 2004-02-23 15:16:16 UTC | View event → |
| M 5.1 | 83 km SSW of Hihifo, Tonga | 250.0 km | 2004-02-23 15:16:45 UTC | View event → |
| M 4.9 | 37 km ENE of ‘Ohonua, Tonga | 50.0 km | 2004-02-23 16:15:29 UTC | View event → |
| M 4.9 | 117 km WSW of Hihifo, Tonga | 10.0 km | 2004-02-23 11:02:33 UTC | View event → |
| M 4.9 | 76 km NW of Neiafu, Tonga | 45.5 km | 2004-02-03 21:12:58 UTC | View event → |
| M 4.9 | 86 km ENE of Kolonga, Tonga | 75.0 km | 2004-02-02 00:05:41 UTC | View event → |
| M 4.8 | 81 km NE of Hihifo, Tonga | 10.0 km | 2004-02-22 09:04:31 UTC | View event → |
| M 4.7 | 96 km ENE of Kolonga, Tonga | 15.0 km | 2004-02-17 21:30:19 UTC | View event → |
| M 4.7 | 44 km SE of Neiafu, Tonga | 10.0 km | 2004-02-17 01:12:18 UTC | View event → |
| M 4.7 | 108 km NNE of Hihifo, Tonga | 10.0 km | 2004-02-16 08:47:25 UTC | View event → |
| M 4.7 | 98 km WSW of Hihifo, Tonga | 196.2 km | 2004-02-13 05:33:40 UTC | View event → |
| M 4.6 | 120 km W of Hihifo, Tonga | 10.0 km | 2004-02-23 12:53:59 UTC | View event → |
| M 4.6 | 107 km NNE of Neiafu, Tonga | 10.0 km | 2004-02-19 18:25:37 UTC | View event → |
| M 4.6 | 60 km SE of Neiafu, Tonga | 10.0 km | 2004-02-12 14:52:48 UTC | View event → |
| M 4.6 | 92 km SSW of Hihifo, Tonga | 51.5 km | 2004-02-03 07:25:56 UTC | View event → |
| M 4.5 | 47 km WSW of Hihifo, Tonga | 165.0 km | 2004-02-23 15:29:47 UTC | View event → |
| M 4.5 | 118 km WSW of Hihifo, Tonga | 10.0 km | 2004-02-22 14:39:57 UTC | View event → |
| M 4.5 | 179 km SW of Hihifo, Tonga | 266.0 km | 2004-02-18 10:58:32 UTC | View event → |
| M 4.5 | 48 km SE of Neiafu, Tonga | 10.0 km | 2004-02-16 07:50:52 UTC | View event → |
| M 4.5 | 92 km ESE of Neiafu, Tonga | 4.4 km | 2004-02-12 02:25:59 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 →
