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6.5
EarthquakeMajor

M6.5 earthquake - 30 km SSW of Hihifo, Tonga

21403 d ago · 11 Mar 1968, 08:26 UTC 30 km SSW of Hihifo, Tonga

What happened

A magnitude 6.5 earthquake struck 30 km SSW of Hihifo, Tonga on 11 Mar 1968, 08:26 UTC at a depth of 109 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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