JAKARTA ~ A 6.4-magnitude earthquake struck off East Timor on Saturday but there was no tsunami threat and no immediate reports of damage, the Meteorology and Geophysics Agency said. The quake, which struck at 10:12am, was centered about 81 kilometers northeast of the East Timorese capital Dili and about 40 kilometers south of Indonesia’s Wetar island, the agency said. The tremor, which was 10 kilometers deep, had no tsunami potential, the agency added. The Indonesian archipelago sits on the Pacific Ring of Fire, where continental plates meet and cause frequent seismic and volcanic activity. Indonesia was the nation worst hit by the earthquake-triggered Asian tsunami in December 2004, which killed 168,000 people in the country’s Aceh province.