Strong earthquake rocks East Java in Indonesia At least eight die in 6.1-magnitude tremor that also caused extensive damage Trending Doni Monardo (right), head of the National Disaster Mitigation Agency (BNPB), visits Wirotaman, one of the worst-hit villages in Malang district, on April 11 to assess the damage caused by the 6.1-magnitude earthquake that struck Indonesia’s East Java province a day earlier, killing at least eight people. (Photo courtesy of BNPB) At least eight people were killed by a 6.1-magnitude earthquake that struck Indonesia’s East Java province on April 10, just six days after deadly flash floods and landslides killed more than 170 in the east of the country.