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4.5MAG

LIGHT EARTHQUAKE

61 km N of Hihifo, Tonga

USGS

A magnitude 4.5 earthquake struck 61 km N of Hihifo, Tonga on 10 Oct 2026, 08:38 UTC. The hypocentre was 79.4 km below the surface — intermediate by seismological convention. 5 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
79.4 km

intermediate

Latitude
15.40°S

173.78°W longitude

Time
08:38 UTC

10 Oct 2026

Magnitude
M4.5

mb

EPICENTRE

View the official report↗

MAGNITUDE 4.5

Noticeable shaking of indoor objects. Damage is unlikely.

The scale is logarithmic: this released about 180 times the energy of a magnitude 3.0, roughly the energy of 85 tonnes of TNT.

79.4 KM DEEP

At this depth the energy spreads before it reaches the surface. Shaking is usually weaker than a shallow earthquake of the same size, but it can be felt across a wider area.

NEARBY IN THE PAST 30 DAYS

5 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.7.

OTHER RECENT EARTHQUAKES

M4.5 earthquake — Hihifo, Tonga · Quakewire