A 5.8-magnitude earthquake struck off the eastern Indonesian province of Maluku on Tuesday but there was no threat of a tsunami and no immediate reports of damage, seismologists said.
The quake hit at 0112 GMT 148 kilometres northwest of Ambon in Maluku province, the Indonesian meteorology and geophysics agency said.
It was registered at a depth of 35 kilometres.
"There are no reports of damage so far," said agency geologist Bagio, adding that no tsunami warning had been issued.
Indonesia was the nation worst hit by the earthquake-triggered Asian tsunami in December 2004, which killed 168,000 people in the country's Aceh province.
The Indonesian archipelago sits on the so-called Pacific Ring of Fire, where continental plates meet causing seismic and volcanic activity.