44 km S of Blitar Regency

7 days ago

BMKGFELT

A magnitude 4.1 earthquake struck 44 km S of Blitar Regency on 12 Oct 2026, 05:28 UTC. The hypocentre was 101 km below the surface — intermediate by seismological convention. Shaking was reported in Malang, Blitar, Trenggalek and Lumajang. 6 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth: 101 km
Latitude: 8.53°S
Time: 05:28 UTC
Magnitude: M4.1

REPORTED SHAKING (MMI SCALE)

IIIMalang, III Blitar, II Trenggalek, II Lumajangweak shaking

EPICENTRE

SEA

SHAKEMAP (BMKG)

BMKG shakemap for the M4.1 earthquake near Blitar Regency

View the official report↗

MAGNITUDE 4.1

Noticeable shaking of indoor objects. Damage is unlikely.

The scale is logarithmic: this released about 45 times the energy of a magnitude 3.0, roughly the energy of 21 tonnes of TNT.

101 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.