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7.8
EarthquakeExtreme

M7.8 earthquake - 146 km ESE of Hihifo, Tonga

18557 d ago · 26 Dec 1975, 15:56 UTC 146 km ESE of Hihifo, Tonga

What happened

A magnitude 7.8 earthquake struck 146 km ESE of Hihifo, Tonga on 26 Dec 1975, 15:56 UTC at a depth of 33 km.

Earthquakes of this size are classed as Major. Can cause serious damage over large areas. This was a shallow earthquake, which tends to be felt more strongly at the surface.

The nearest town in our records is Apia, about 279 km away in Tuamasaga, Samoa.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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