Massive eruption at Semeru volcano, volcanic ash up to 15.2 km (50 000 feet) a.s.l., Indonesia
A high-level eruption occurred at Indonesia’s Semeru volcano on December 4, 2022, prompting authorities to raise the Alert Level from III to IV. The last major eruption at this volcano took place on December 4, 2021, leaving 51 people dead and several hundred others injured.