The quake struck at 02:26 (19:26 GMT on Saturday) at a depth of about 50km. The USGS reported the epicentre was more than 170km west of the capital Jakarta.
Two massive earthquakes struck off Indonesia’s Sumatra island last week, triggering an Indian Ocean-wide tsunami alert and sending terrified people fleeing from the coast.
At a magnitude of 8.6, the first of the two quakes which hit Wednesday was the strongest since the 2004 Indian Ocean tsunami that killed 170 000 in Indonesia’s quake-prone Aceh province.
But the tsunami watch on Wednesday was eventually lifted and no major damage was reported. – AFP