MEDAN, Indonesia—A rumbling volcano on Indonesia’s Sumatra island on Wednesday shot billowing columns of ash and hot clouds down its slopes.
The ash released by Mount Sinabung in North Sumatra province reached more than 4,500 meters (14,760 feet) into the atmosphere, and an avalanche of searing gas clouds blew 1 kilometer (0.62 mile) to the east and southeast, Indonesia’s Volcanology and Geological Hazard Mitigation Center said.
