Open Earth
6.3
EarthquakeMajor

M6.3 earthquake - 127 km NNW of Neiafu, Tonga

17963 d ago · 11 Aug 1977, 01:42 UTC 127 km NNW of Neiafu, Tonga

What happened

A magnitude 6.3 earthquake struck 127 km NNW of Neiafu, Tonga on 11 Aug 1977, 01:42 UTC at a depth of 57 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

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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