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4.9MAG

LIGHT EARTHQUAKE

104 km NNE of Hihifo, Tonga

USGS

A magnitude 4.9 earthquake struck 104 km NNE of Hihifo, Tonga on 22 Oct 2026, 19:06 UTC. The hypocentre was 23.4 km below the surface — shallow by seismological convention. 7 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
23.4 km

shallow

Latitude
15.13°S

173.33°W longitude

Time
19:06 UTC

22 Oct 2026

Magnitude
M4.9

mb

EPICENTRE

View the official report↗

MAGNITUDE 4.9

Noticeable shaking of indoor objects. Damage is unlikely.

The scale is logarithmic: this released about 710 times the energy of a magnitude 3.0, roughly the energy of 338 tonnes of TNT.

23.4 KM DEEP

Shallow earthquakes release their energy close to the surface, so they are felt more strongly, and do more damage, than deeper earthquakes of the same magnitude.

NEARBY IN THE PAST 30 DAYS

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

OTHER RECENT EARTHQUAKES

M4.9 earthquake — Hihifo, Tonga · Quakewire