Indonesian media reported quoting state's volcanologists that the gas eruptions were the largest so far and have caused the most casualties. Ten days of eruptions have forced the evacuation of more than 75,000 people so far.
"Because of today's eruption, we found 39 bodies, so the total death toll is 83, and another 66 have been injured, so the total number of injured is 185
people," said Sutopo Purwo Nugroho, the director of disaster risk reduction at the National Disaster Mitigation Agency.
Earlier, the Mount Merapi had erupted in 2006, killing two people, and in 1994, claiming 60 lives.
But the death toll went up to 1,300, when it erupted in 1930. Indonesia has more than 129 active volcanoes spread across 17,500 islands.