JAKARTA: A strong earthquake rattled Indonesia's Sumatra island yesterday, where thousands had fled to high ground a day earlier after another powerful temblor triggered unfounded fears of a tsunami.
Seismologists in Hong Kong said the 6.1-magnitude quake's epicentre was about 270km south-west of Medan in western Sumatra.
On Sunday, thousands of people fled their homes in the west Sumatran city of Padang following a 6.8-magnitude temblor and a series of smaller aftershocks.
Seismologists predicted the quakes and aftershocks would continue for several days.
Sunday's undersea quake was felt across a large swath of Sumatra, which was devastated by the Dec 26 earthquake and tsunami that killed at least 174,000 people in 11 countries and left 50,000 missing.
Indonesia was the hardest hit, with at least 126,000 people killed and more than 500,000 left homeless, mostly in Aceh province in Sumatra.
The region has since been hit by daily aftershocks since then. On March 28, an 8.7-magnitude quake killed at least 647 people on Nias island, off the western Sumatran coast. AP