M4.2 earthquake - 230 km WSW of Hihifo, Tonga
1883 d ago · 21 Aug 2021, 10:01 UTC 230 km WSW of Hihifo, Tonga
What happened
A magnitude 4.2 earthquake struck 230 km WSW of Hihifo, Tonga on 21 Aug 2021, 10:01 UTC at a depth of 346 km.
Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was a deep earthquake; shaking at the surface is usually weak for its size.
Timeline
First reported by USGS
17 Oct 2026, 10:21 UTC
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