Agencies Posted online: Saturday, August 11, 2007 at 1142 hours IST
Jakarta, August 11: A 5.7-magnitude quake struck off northeast Indonesia on Saturday but there were no immediate reports of casualties or damage, the Meteorology and Geophysics Agency said.
The undersea quake struck at 01:06 pm (0936 IST), 237 kilometres northwest of Ternate town in North Maluku province.
"There are no reports that the quake was felt anywhere," said a staff member at the agency.
There was no danger of a tsunami being triggered by the quake, whose epicentre was 33 kilometres under the seafloor, the agency said.
The US Geological Survey measured the quake at 5.4.
A powerful 7.5-magnitude earthquake shook Indonesia's main island of Java early Thursday and was felt as far as North Sumatra to the west and in Bali about 880 kilometres to the east.
No serious damage was caused by the deep quake.
Indonesia was the nation worst hit by the earthquake-triggered tsunami of December 2004, which killed some 18,000 people in Aceh province alone.
The archipelago nation sits on the Pacific "Ring of Fire" where continental plates collide, causing frequent seismic and volcanic activity.