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4.9MAG

LIGHT EARTHQUAKE

Mariana Islands region

USGS

A magnitude 4.9 earthquake struck Mariana Islands region on 08 Sept 2026, 23:23 UTC. The hypocentre was 10 km below the surface — shallow by seismological convention. 1 other earthquake above our reporting threshold has been recorded within 250 km in the past 30 days.

Depth
10 km

shallow

Latitude
16.62°N

148.48°E longitude

Time
23:23 UTC

08 Sept 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.

10 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

1 earthquake above our reporting threshold within 250 km of this one, the largest a magnitude 5.0.

OTHER RECENT EARTHQUAKES

M4.9 earthquake — Mariana Islands region · Quakewire