Explore earthquake activity year by year and month by month using the historical Quake Pulse database.
| Magnitude | Location | Depth | Time | |
|---|---|---|---|---|
| M 5.6 | 173 km SSW of Matavai, Samoa | 10.0 km | 2009-09-29 18:08:21 UTC | View event → |
| M 5.2 | 124 km SSW of Lotofag?, Samoa | 10.0 km | 2009-09-29 18:34:29 UTC | View event → |
| M 5.1 | 130 km SSW of Lotofag?, Samoa | 10.0 km | 2009-09-29 18:44:31 UTC | View event → |
| M 4.9 | 148 km SSW of Matavai, Samoa | 10.0 km | 2009-09-29 23:51:42 UTC | View event → |
| M 4.8 | 128 km SSW of Lotofag?, Samoa | 10.0 km | 2009-09-29 23:36:33 UTC | View event → |
| M 4.7 | 159 km SSW of Matavai, Samoa | 10.0 km | 2009-09-30 01:25:55 UTC | View event → |
| M 4.6 | 166 km SSW of Matavai, Samoa | 10.0 km | 2009-09-30 09:53:38 UTC | View event → |
| M 4.6 | 134 km SSW of Lotofag?, Samoa | 10.0 km | 2009-09-29 20:37:00 UTC | View event → |
| M 4.5 | 139 km SSW of Lotofag?, Samoa | 10.0 km | 2009-09-30 01:56:46 UTC | View event → |
| M 4.5 | 113 km S of Lotofag?, Samoa | 10.0 km | 2009-09-29 19:12:03 UTC | View event → |
| M 4.5 | 176 km SSW of Matavai, Samoa | 10.0 km | 2009-09-29 19:05:51 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 →
