M6.4 earthquake - 194 km WNW of Hihifo, Tonga
17638 d ago · 2 Jul 1978, 04:01 UTC 194 km WNW of Hihifo, Tonga
What happened
A magnitude 6.4 earthquake struck 194 km WNW of Hihifo, Tonga on 2 Jul 1978, 04:01 UTC at a depth of 25 km.
Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a shallow earthquake, which tends to be felt more strongly at the surface.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
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