Regarding Mt. Asama on the prefectural border between Nagano and Gunma, the Japan Meteorological Agency said that volcanic activity was declining, and canceled the warning around the crater at 2:00 pm, and noted that the eruption alert level was level 2 to level 1 "active volcano". It was lowered to.
On the other hand, as there is a possibility of a very small eruption, we are urging people not to enter dangerous areas according to the instructions of local governments.
According to the Japan Meteorological Agency, volcanic activity is increasing at Mt. Asama on the prefectural border between Nagano and Gunma prefectures, such as an increase in volcanic earthquakes. I was calling for caution within a kilometer range.
After that, the amount of eruption and the amount of volcanic gas released at Mt. Asama have been low since May, and the number of volcanic earthquakes has been decreasing since the middle of June.
It also means that crustal movements, which indicate the rise of magma from deep underground, are almost stagnant.
For this reason, the Japan Meteorological Agency considers that volcanic activity is declining, cancels the crater area warning at 2:00 pm on the 6th, and indicates the eruption alert level from 2 indicating "crater area regulation" to "note that it is an active volcano" 1 It was lowered to.
On the other hand, as there is a possibility of a very small eruption affecting the range of 500 meters from the crater in the future, be careful of sudden volcanic ash eruptions and volcanic gas, and follow the instructions of the local government etc. I am calling you not to enter.
When entering a mountain for mountain climbing, it is important to pay attention to the latest information and to act on the assumption that a sudden eruption may occur even at eruption alert level 1.