JAKARTA ~ A 5.7-magnitude quake hit the island of Sumbawa on Thursday, seismologists said, but there were no reports of damage or injuries.

The quake struck at 6:41am local time 138 kilometers west-northwest of the town of Raba and 260 kilometers east-northeast of Denpasar, capital of Bali, the US Geological Survey said.

It occurred at a depth of 10 kilometers.

The Indonesian archipelago sits on the so-called Pacific Ring of Fire, where continental plates meet causing seismic and volcanic activity.