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4.0MAG

LIGHT EARTHQUAKE

29 km WSW of Ambarita, Indonesia

USGS

A magnitude 4.0 earthquake struck 29 km WSW of Ambarita, Indonesia on 25 Aug 2026, 23:57 UTC. The hypocentre was 151.1 km below the surface — intermediate by seismological convention. 4 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
151.1 km

intermediate

Latitude
2.58°N

98.59°E longitude

Time
23:57 UTC

25 Aug 2026

Magnitude
M4.0

mb

EPICENTRE

View the official report

MAGNITUDE 4.0

Noticeable shaking of indoor objects. Damage is unlikely.

The scale is logarithmic: this released about 32 times the energy of a magnitude 3.0, roughly the energy of 15 tonnes of TNT.

151.1 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

4 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.2.

OTHER RECENT EARTHQUAKES

M4.0 earthquake — Ambarita, Indonesia · Quakewire