M5.6 earthquake near Teluk Dalam, North Sumatra

What happened

A magnitude 5.6 earthquake struck 143 km SSE of Teluk Dalam, Indonesia on 18 Aug 2026, 06:02 UTC at a depth of 10 km.

Earthquakes of this size are classed as Moderate. Can damage poorly built structures close to the epicentre. This was a shallow earthquake, which tends to be felt more strongly at the surface.

The nearest town in our records is Teluk Dalam, about 144 km away in North Sumatra, Indonesia.