Open Earth
6.1
EarthquakeMajor

M6.1 earthquake - 90 km ESE of Hihifo, Tonga

12809 d ago · 21 Sept 1991, 15:19 UTC 90 km ESE of Hihifo, Tonga

What happened

A magnitude 6.1 earthquake struck 90 km ESE of Hihifo, Tonga on 21 Sept 1991, 15:19 UTC at a depth of 17 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.

The nearest town in our records is Apia, about 297 km away in Tuamasaga, Samoa.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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