Bukit Tinggi/Padang: A powerful underwater earthquake struck western Indonesia on Sunday injuring four people as they tried to flee, officials announced.
Indonesia's meteorological and geophysics agency said no tsunami warning has been issued.
The US Geological Survey said the quake registered magnitude 6.7, after initially measuring it at 7.0.
Four people were injured as they fled their homes in Padang and a house was damaged, a local government official said.
The earthquake struck at 1438 local time (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, the US Geological Survey said.
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 that killed around 230-thousand people in a dozen countries in 2004.
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