JAKARTA, Oct. 17 (Xinhua) -- An earthquake measuring 6.0 on the Richter scale jolted off North Sulawesi province in eastern Indonesia on Wednesday but neither tsunami alert was triggered nor casualties or damages were reported.
Indonesian Meteorology and Geophysics Agency said that the quake happened at 11:42 a.m. Jakarta time (04:42 GMT) with epicenter at 113 km northwest of Kepulauan Sangihe in the province at the depth of 308 km under sea bed.
The U.S. Geological Survey said that the earthquake measuring 6. 0 on the Richter scale jolted Celebes Sea between Sulawesi and Mindanao.
Head of Disaster Management and Mitigation Agency in Sangihe district, Rintj Sambato, said that there was no building damages or casualties.
Indonesia sits on the so called "Pacific Ring of Fire" vulnerable to seismic and volcanic activity.