Open Earth
6.1
EarthquakeMajor

M6.1 earthquake - 79 km ESE of Hihifo, Tonga

19430 d ago · 5 Aug 1973, 15:47 UTC 79 km ESE of Hihifo, Tonga

What happened

A magnitude 6.1 earthquake struck 79 km ESE of Hihifo, Tonga on 5 Aug 1973, 15:47 UTC at a depth of 33 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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