A magnitude-5.6 earthquake hit near the Indonesian island of Sumatra at 7:01 a.m. local time today, the U.S. Geological Survey said on its Web site.
The quake struck 220 kilometers (140 miles) south-southwest of the town of Sibolga on the west coast of Sumatra, at a depth of 35 kilometers, the USGS said. The quake’s epicenter was 1,140 kilometers northwest of Jakarta.
Indonesia lies in a zone where the Indo-Australian, Eurasian, Philippine and Pacific plates meet and occasionally shift, causing earthquakes.
A 9.1 magnitude earthquake offshore from Sumatra in December 2004 caused a tsunami that devastated coastal communities across the Indian Ocean, leaving more than 220,000 people dead.