Earthquake · Tonga
M6.1 earthquake near Hihifo, Tonga
A magnitude 6.1 earthquake struck 88 km NNE of Hihifo, Tonga on 19 April 2026 at 17:34 UTC, at a depth of 36 km.
- Magnitude
- 6.1 mww
- When
- 19 April 2026, 17:34 UTC
- Depth
- 36 km
- Location
- 15.22° S, 173.48° W
- Strongest shaking (estimated)
- Intensity IV (light)
- Felt reports
- 14 people told USGS they felt it
- USGS PAGER alert
- Green
- Source
- USGS event page
What it means
A magnitude 6.1 is a strong earthquake; there are about 130 a year worldwide, and they can cause damage in populated areas near the epicentre. At 36 km deep it was a shallow earthquake, which usually means stronger shaking near the epicentre.
The magnitude may be revised as more data comes in. Read Earthquake magnitude explained for what the numbers mean.
Aftershocks
7 earthquakes of magnitude 4 or more within 150 km in the 30 days after; the largest was a magnitude 4.7.
| Mag | Where | When (UTC) |
|---|---|---|
| 4.7 | 116 km NNE of Hihifo, Tonga | 29 April 2026, 01:44 |
| 4.6 | 76 km NE of Hihifo, Tonga | 13 May 2026, 12:50 |
| 4.5 | 104 km N of Hihifo, Tonga | 24 April 2026, 05:39 |
| 4.5 | 106 km E of Hihifo, Tonga | 28 April 2026, 05:37 |
| 4.5 | 96 km N of Hihifo, Tonga | 13 May 2026, 09:20 |
| 4.2 | 85 km NNE of Hihifo, Tonga | 16 May 2026, 20:08 |
| 4.1 | 58 km SW of Hihifo, Tonga | 18 May 2026, 04:19 |
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