45 km N of Ruteng-Manggarai

4 days ago

BMKGFELT

A magnitude 4.0 earthquake struck 45 km N of Ruteng-Manggarai on 13 Sept 2026, 09:02 UTC. The hypocentre was 25 km below the surface — shallow by seismological convention. Shaking was reported in Manggarai Regency. 10 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth: 25 km
Latitude: 8.20°S
Time: 09:02 UTC
Magnitude: M4.0

REPORTED SHAKING (MMI SCALE)

II–IIIManggarai Regencybarely felt to weak shaking

EPICENTRE

SEA

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.

25 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.