Jakarta - At least four people were killed, nearly 60 others wounded and more than 1,500 buildings were damaged after a powerful undersea earthquake struck off the Indonesia's North Sulawesi early Monday, officials said.
The 7.7-magnitude quake struck at 1:02 am (1702 GMT Sunday) with its epicenter in the sea about 138 kilometres north-west of Gorontalo on North Sulawesi, about 1,950 kilometres north-east of Jakarta. It occurred about 10 kilometres beneath the seabed.
The US Geological Survey measured the quake at 7.5 on the Richter scale.
Indonesia's National Meteorology and Geophysics Agency (BMG) briefly issued a tsunami warning, but the alert was canceled after no tidal waves materialized, an official said.