Semeru volcano erupts in Indonesia, residents evacuated from two nearest villages surrounding Java island

emeru volcano on Indonesia's Java island erupted on Sunday, spewing a 1.5-km high ash column, authorities said. As of Sunday afternoon, the country's Volcano Disaster Mitigation of the Center for Volcanology and Geological Hazard Mitigation has raised its volcanic alert level for Semeru volcano to level 4, the highest level of a four-tier volcanic alert system.