Asama volcano lowered to eruption alert level 1 November 6 14:32
However, as for Mt. Asama on the prefectural border between Nagano and Gunma where a small eruption occurred in August, the Japan Meteorological Agency released the crater warning and lowered the eruption alert level to 1. In the future, there is a possibility of a very small eruption, so we are calling on the local government to avoid entering dangerous areas.
At Asama, on the border between Nagano and Gunma, a small eruption suddenly occurred in early August, with no increase in volcanic activity.
With this eruption, the Japan Meteorological Agency announced a warning around the crater and raised the eruption warning level to 3, which indicates “Iriyama control”, and after about 10 days, lowered the level to 2, warning about 2 km from the crater. Was calling for.
According to the Japan Meteorological Agency, Mt. Asama has not had an eruption since August, and volcanic earthquakes have continued to be low since early last month.
In addition, volcanic activity is declining, as no crustal movement indicating magma rise from deep underground has been observed.
For this reason, the Japan Meteorological Agency canceled the crater vicinity warning at 2:00 pm on the 6th and lowered the eruption warning level to 1, which indicates “notice that it is an active volcano”.
On the other hand, as there is a possibility of a very small eruption that affects the range of 500 meters from the crater in the future, pay attention to sudden volcanic ash eruption and volcanic gas, and it is dangerous according to instructions from local governments etc. We are calling not to enter the area.