Jakarta: A powerful underwater earthquake struck western Indonesia on Sunday, injuring four people as they tried to flee, officials said.
Indonesia`s meteorological and geophysics agency said no tsunami warning was issued.
The US Geological Survey said the quake registered magnitude 6.7, after initially measuring it at 7.0. It struck at 2:38 pm (0738 GMT) and was centred at a depth of 28 miles (45 kilometres) under the Indian Ocean seabed, about 70 miles (110 kilometres) west-southwest of the city of Padang on Sumatra island, it said.
Four people were injured as they fled in Padang and a house was damaged, said Ade Edward, a local government official.
Indonesia straddles a chain of fault lines and volcanoes known as the Pacific "Ring of Fire" and is prone to seismic activity. A huge quake off western Indonesia caused a powerful tsunami in 2004 that killed around 230,000 people in a dozen countries.