The epicentre, with a depth of 35 km, was initially determined to be at 1.5093degrees north latitude and 126.4563 degrees east longitude.
Indonesia,one of the most disaster-prone nations on earth, straddles the Pacific"Ring of Fire", where tectonic plates collide and a large portion ofthe world’s volcanic eruptions and earthquakes occur.
In2004, a big earthquake off the northern Indonesian island of Sumatra triggereda tsunami across the Indian Ocean, killing 220,000 people in 13 countries,including more than 168,000 in Indonesia.-VNA