Indonesia’s Mount Semeru erupted, causing volcano spewed ash clouds as high as 1.2 miles above the mountain’s peak. | NBC News

🚨Indonesia’s Semeru Violently Erupted Indonesia’s Mount Semeru has erupted violently again. Ash plumes have shot up to 16–18 kilometers into the sky, while pyroclastic flows – deadly clouds of gas, ash, and rock – have rushed more than 13 kilometers down its slopes. The authorities have raised the volcano to Alert Level 4, the highest, expanded the exclusion zone to 8 km in all directions and 20 km to the southeast, and evacuated 900 residents into schools, mosques, and shelters. Climbers on th