Jakarta – A shallow undersea-quake struck off Aceh of Sumatra island on Sunday, but has not potential for triggering a tsunami, an Indonesian official said here.

The magnitude-5.9 quake struck at 17:07 p.m. Jakarta time (1007 GMT) at a depth of 10 km with the epicenter at 634 km southwest Simeuleu island of Aceh, an official of the Agency for Meteorology, Climatology and Geophysics told Xinhua via phone.

The U.S. Geological Survey (USGS) reported on its website that the quake was at 5.8 magnitude and with a depth of 18 km.

Indonesia, an archipelago country with a chain of 17,500 islands, is prone to quakes as it lies on a vulnerable quake-hit zone known as “the Pacific Ring of Fire.” Source: Xinhua