Update: Aug. 18 – 5.6 magnitude earthquake detected close to Teluk Dalam, Indonesia

Published Sep 7, 2026

A 5.6 magnitude quake struck near Teluk Dalam at midday on Tuesday, according to the U.S. Geological Survey.

The tremor, which jolted the area at 06:02 UTC (13:02 local time), was centered roughly 145 km south-southeast of Teluk Dalam. It occurred at a depth of 10 km.

Did you feel it?

If you noticed the earthquake, you can share your experience using the USGS Felt Report form.

Impact and estimated losses

The USGS categorized this as a Green Alert, which means there is a low likelihood of casualties and damage. Recent earthquakes in this area have caused secondary hazards such as landslides that might have contributed to losses.

Structure information summary

Overall, the population in this region resides in structures that are vulnerable to earthquake shaking, though resistant structures exist. The predominant vulnerable building types are unreinforced brick with concrete floor and precast concrete frame with wall construction.

Area struck by 8.6 quake in 2005
Aceh Singkil Regency has faced strong earthquakes before. On Mar. 28, 2005, a magnitude 8.6 tremor struck west-southwest of Singkil, at a depth of 18.6 miles.

Source: The U.S. Geological Survey