© USGS
"It happened so fast," said Surono, the director of the volcanology and mitigation agency. "There was no time for an evacuation."
Mount Karangetang, located on Siau, part of the Sulawesi island chain, burst just after midnight when heavy rains broke the volcano's hot lava dome, which spit out 1,110 degree Fahrenheit (600 Celsius) clouds of gas.
Ash and lava crashed down the mountain's western slope, destroying at least nine houses, a church and a school, said Priyadi Kardono, an official with the national disaster management agency. A road and a bridge also were badly damaged, leaving more than 2,000 people in the remote area completely isolated.
Kardono said four family members were missing and feared dead. Five others were hospitalized, one in critical condition.
Authorities were trying to evacuate residents living in at least one nearby village, said Tony Supit, a district chief.
