Mount Aso, Kyushu Islands, Japan has erupted on Wednesday (10/20) morning by local time. Mount Aso is one of the most dangerous 10 volcanos in Japan.
Mount Aso may be less famous than the iconic Mount Fuji, but it is the largest and most active volcano in Japan.
Words: Solenn Cordroc’h
Japan Meteorological Agency has issued a Level 3 Volcanic activity alert. (Out of 1 to 5 levels, 5 means most critical). Pyroclastic flow has reached 1 kilometre from the crater and hot ashes reached 3,500 metres in the atmosphere. Mount Aso is a 1,592m high peak. In general, ashes reach around 7 km diameter when mount Aso get angry.
According to Reuters, the first activity appeared around 11:43 AM today (10/20). Authorities have urged people to keep away from the mountain. Mount Aso is one of the interesting tourist destinations in the region as well.
There was a shuttle bus service to allow tourists to the edge of the crater of the Volcano. And there are some hot water wells even in the area. Two of those hot water wells are located inside the crater.
According to Wikipedia, It has the largest active crater in the world, measuring 71 miles (114 km) in circumference, 17 miles (27 km) from north to south, and 10 miles (16 km) from east to west. The most northern crater has been active for the last 70 years—1974, 1979, 1984–1985, 1989–1991, 2009, 2011, 2015 and 2016. The present Aso Caldera formed as a result of four huge caldera eruptions occurring over a range of 90,000–300,000 years ago.
Mount Aso erupted in 2019 and it was classified as a minor incident, while Mount Ontake in Japan had its greatest volcanic disaster in over 90 years, killing 63 people in September 2014. In this incident, no damages have been reported yet.