LIGHT EARTHQUAKE
268 km WNW of Houma, Tonga
A magnitude 4.6 earthquake struck 268 km WNW of Houma, Tonga on 10 Oct 2026, 12:21 UTC. The hypocentre was 560.2 km below the surface — deep by seismological convention. 10 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.
- Depth
- 560.2 km
- Latitude
- 19.95°S
- Time
- 12:21 UTC
- Magnitude
- M4.6
deep
177.53°W longitude
10 Oct 2026
mb
EPICENTRE
MAGNITUDE 4.6
Noticeable shaking of indoor objects. Damage is unlikely.
The scale is logarithmic: this released about 250 times the energy of a magnitude 3.0, roughly the energy of 120 tonnes of TNT.
560.2 KM DEEP
Deep earthquakes rarely cause damage. The energy dissipates over hundreds of kilometres before reaching the surface, though it can still be felt far from the epicentre.
NEARBY IN THE PAST 30 DAYS
10 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.9.
OTHER RECENT EARTHQUAKES
19 Oct 2026, 06:15 UTC · 157.8 km deep
19 Oct 2026, 05:18 UTC · 44 km deep
18 Oct 2026, 23:59 UTC · 10 km deep
18 Oct 2026, 23:30 UTC · 444.2 km deep