Jakarta/UNI: An earthquake with a magnitude of 5.9 rocked off Indonesia's North Sulawesi province on Thursday, without causing giant waves, the country's meteorology, climatology and geophysics agency BMKG said.

The agency had earlier reported the quake's magnitude at 6.2 before revising it. The quake happened at 6:26 a.m. Jakarta time Thursday (2306 GMT Wednesday), it said.

The epicenter was located 96 km northwest of the provincial capital of Manado at the seabed, with a depth of 300 km, the agency said. The jolts were also felt in the nearby province of North Maluku.

Officials of the agency did not issue a tsunami warning as the tremors would not trigger giant waves.