JAKARTA: A strong quake of 6.4 magnitude struck in waters off Indonesia on Sunday, the U.S. Geological Survey (USGS) said, but there were no immediate reports of damage or casualties.

There was no danger of a widespread destructive tsunami from the quake, which hit shortly before 9 p.m EST, the Pacific Tsunami Warning Center said, although there was a very small possibility of a local tsunami no more than 100 km (60 miles) from the quake epicenter.

Indonesia's Meteorology and Geophysics earthquake center put the magnitude of the quake at 7.0 and said its epicenter was 132 km (82 miles) southeast of Labuha in North Mollucas at a depth of 56 km. The agency did not issue a tsunami warning.

"The quake was felt in Ambon city but we haven't received any report of damage," said Ali Imron, an official at the agency.

The USGS said the epicenter was more than 160 km north of Ambon in the Molluccas, and the quake's depth was 52 km.