Moderate M5.7 earthquake strikes near Palu, Indonesia on August 15, 2026

An earthquake of magnitude M5.7 was recorded at 16:25 UTC on August 15, 2026, about 125 km (78 miles) north-northeast of Palu, Indonesia. The quake occurred at a depth of 72.5 km (45.1 miles), according to the reviewed data published by USGS.

The coordinates place the epicenter at 0.2°N, 120.3°E in the region north-northeast of Palu on the island of Sulawesi, Indonesia. The affected area includes inland communities situated within Central Sulawesi province alongside several rural settlements.

Critical infrastructure in this part of Sulawesi could include local highways, regional airports, and utility networks that support rural populations, though no specific damage or disruptions have been reported.

There is no tsunami threat associated with this earthquake, based on its location and available data.

USGS issued a green alert for this event, indicating a low likelihood of casualties or damage. The maximum estimated intensity was IV (4), and one felt report was submitted. The significance index is 500 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.

Indonesia is situated along the boundary of the Indo-Australian and Eurasian plates, making it one of the world’s most seismically active countries. This region of Sulawesi is known for significant seismicity due to its proximity to complex tectonic boundaries.

This information was last updated at 16:48 UTC on August 15, 2026.