The quake, which was downgraded from a magnitude of 7.1, was centered 15 miles underwater, according to seismologists. The epicenter was located 412 km (256 miles) from the country’s capital Jakarta.
Indonesia is prone to seismic upheaval due to its location on the so-called “Ring of Fire,” an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In 2004, a massive earthquake, which triggered a tsunami, killed more than 230,000 people in a dozen nations, nearly three-quarters of them in western Indonesia.
