An earthquake of magnitude 6 struck in the Nias region in western Indonesia, the European-Mediterranean Seismological Centre (EMSC) said on Tuesday.
EMSC said the quake was at a depth of 10 km, after reporting a depth of 2 km earlier with 5.9 magnitude.
The earthquake was 325 km southwest of the city of Padangsidempuan in North Sumatra, EMSC said.
On March 28, 2015, a 8.7-magnitude quake claimed the lives of 685 people in Nias regency and 165 in South Nias regency.
About 28,000 houses were destroyed by the quake in Nias and another 17,326 houses in South Nias.