Seismic Activity in Samoa
Over the past 30 days, there have been 5 recorded earthquakes in this region. The largest recent earthquake was a magnitude 5.1 event near 89 km NE of Hihifo, Tonga.

Over the past 30 days, Samoa has recorded 5 earthquakes of magnitude 2.5 or greater in our tracker. 3 reached magnitude 5.0 or higher. 2 landed between M4.0 and M4.9. By depth: 4 shallow (<70 km), 1 intermediate (70–300 km). 2 of the epicenters were offshore. Focal depths ranged from 10.0 km to 71.2 km. All 5 solutions have been reviewed by a USGS seismologist.
Each row in the table below includes a narrative summary of the event, ordered by time. Use the column headers to sort or filter by magnitude.
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
3 days ago 2026-07-22 21:58:51 UTC | 4.9mb | 17 km NW of Hihifo, Tonga -15.832°, -173.903° | 71.2 km | - | - | - | ✓ Reviewed | USGS → |
On July 22, 2026, Samoa registered a magnitude 4.9 earthquake 17 km NW of Hihifo, Tonga at 21:58 UTC. This is the deepest earthquake in the current dataset — an intermediate depth event. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
5 days ago 2026-07-20 23:37:57 UTC | 5.0mb | 141 km SSW of Gataivai, Samoa -14.968°, -172.862° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake 141 km SSW of Gataivai, Samoa with origin time 23:37 UTC on July 20, 2026. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
6 days ago 2026-07-19 09:48:03 UTC | 4.6mb | 91 km ESE of Hihifo, Tonga -16.345°, -173.038° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 09:48 UTC on July 19, 2026, a magnitude 4.6 tremor occurred 91 km ESE of Hihifo, Tonga. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-11 2026-07-11 15:33:17 UTC | 5.1mb | 89 km NE of Hihifo, Tonga -15.314°, -173.293° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 11, 2026 at 15:33 UTC, a magnitude 5.1 earthquake struck 89 km NE of Hihifo, Tonga. It is the largest earthquake currently listed for Samoa over the past 30 days. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-06 2026-07-06 14:43:38 UTC | 5.1mb | 210 km ESE of Hihifo, Tonga -16.895°, -172.083° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.1 earthquake was recorded 210 km ESE of Hihifo, Tonga on July 6, 2026 at 14:43 UTC. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
89 km NE of Hihifo, Tonga
2026-07-11
140 km ENE of Hihifo, Tonga
2026-03-22
Data from USGS Earthquake Hazards Program. Updated every 5 minutes.
Samoa lies near the northern end of the Tonga Trench subduction zone. The 2009 earthquake and tsunami caused significant casualties.
In 2026, Samoa has recorded 127 earthquakes of magnitude 2.5 or greater so far. The largest earthquake in Samoa in 2026 was a magnitude 6.3 event near Hihifo, Tonga.
Over the past 30 days, there have been 5 recorded earthquakes in this region. The largest recent earthquake was a magnitude 5.1 event near 89 km NE of Hihifo, Tonga.
In the past 30 days, 5 earthquakes have been recorded in the Samoa region.
The largest recent earthquake in the Samoa area was a magnitude 5.1 event that occurred 89 km NE of Hihifo, Tonga.
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