Mount Aso, a tourist destination on the main southern island of Kyushu, sent plumes of ash 3.5 킬로미터 (2.2 마일) high when it erupted at about 11:43 오전. Japan time, the Japan Meteorological Agency said.
It raised the alert level for the volcano to 3 on a scale of 5, telling people not to approach, and warned of a risk of large falling rocks and pyroclastic flows within a radius of about 1 kilometer (0.6 마일) around the mountain’s Nakadake crater.
Local police said there were no reports of people injured or missing as of Wednesday evening, 그리고 그 16 people who had gone hiking on the mountain earlier in the day came back safely.
Television networks broadcast images of a dark cloud of ash looming over the volcano that swiftly obscured large swathes of the mountain.
Ash falls from the 1,592-meter (5,222-발) mountain in the prefecture of Kumamoto are expected to shower nearby towns until late afternoon, the weather agency added.
Mount Aso had a small eruption in 2019, while Japan’s worst volcanic disaster in nearly 90 years killed 63 people on Mount Ontake in September 2014.