Explore earthquake activity year by year and month by month using the historical Quake Pulse database.
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 4.9 | 134 km NE of Hihifo, Tonga | 10.0 km | 2016-05-21 07:45:45 UTC | View event → |
| M 4.9 | 84 km WSW of Pangai, Tonga | 97.6 km | 2016-05-07 04:29:24 UTC | View event → |
| M 4.8 | 159 km S of ‘Ohonua, Tonga | 10.0 km | 2016-05-21 22:42:32 UTC | View event → |
| M 4.7 | 120 km ESE of ‘Ohonua, Tonga | 10.0 km | 2016-05-21 19:18:21 UTC | View event → |
| M 4.7 | 90 km ESE of Hihifo, Tonga | 9.9 km | 2016-05-10 02:22:27 UTC | View event → |
| M 4.7 | 117 km NNE of Neiafu, Tonga | 59.9 km | 2016-05-07 16:25:40 UTC | View event → |
| M 4.6 | 66 km SSW of Neiafu, Tonga | 20.6 km | 2016-05-23 12:11:52 UTC | View event → |
| M 4.6 | 157 km E of Pangai, Tonga | 25.4 km | 2016-05-22 22:28:46 UTC | View event → |
| M 4.6 | 104 km NNE of Hihifo, Tonga | 22.6 km | 2016-05-20 15:16:42 UTC | View event → |
| M 4.6 | 116 km ESE of Hihifo, Tonga | 152.8 km | 2016-05-15 23:14:44 UTC | View event → |
| M 4.6 | 78 km ENE of Neiafu, Tonga | 10.0 km | 2016-05-10 21:05:48 UTC | View event → |
| M 4.6 | 133 km N of Neiafu, Tonga | 61.2 km | 2016-05-04 02:42:28 UTC | View event → |
| M 4.5 | 204 km E of ‘Ohonua, Tonga | 10.0 km | 2016-05-29 13:36:02 UTC | View event → |
| M 4.5 | 265 km WNW of Haveluloto, Tonga | 500.7 km | 2016-05-20 17:51:10 UTC | View event → |
| M 4.5 | 220 km NE of Neiafu, Tonga | 10.0 km | 2016-05-14 19:57:21 UTC | View event → |
| M 4.5 | 96 km ESE of Hihifo, Tonga | 35.0 km | 2016-05-10 13:12:04 UTC | View event → |
| M 4.5 | 108 km NNE of Hihifo, Tonga | 10.0 km | 2016-05-09 09:17:45 UTC | View event → |
| M 4.5 | 24 km NNE of Hihifo, Tonga | 71.1 km | 2016-05-06 06:46:29 UTC | View event → |
| M 4.5 | 31 km SW of ‘Ohonua, Tonga | 66.9 km | 2016-05-01 22:44:10 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 →
