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4.2MAG

LIGHT EARTHQUAKE

118 km NE of Palu, Indonesia

USGS

A magnitude 4.2 earthquake struck 118 km NE of Palu, Indonesia on 23 Aug 2026, 05:11 UTC. The hypocentre was 105.9 km below the surface — intermediate by seismological convention. 2 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth
105.9 km

intermediate

Latitude
0.04°S

120.50°E longitude

Time
05:11 UTC

23 Aug 2026

Magnitude
M4.2

mb

EPICENTRE

View the official report

MAGNITUDE 4.2

Noticeable shaking of indoor objects. Damage is unlikely.

The scale is logarithmic: this released about 63 times the energy of a magnitude 3.0, roughly the energy of 30 tonnes of TNT.

105.9 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

2 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 4.9.

OTHER RECENT EARTHQUAKES

M4.2 earthquake — Palu, Indonesia · Quakewire