The Japan Meteorological Agency said on the 23rd local time that the Mt. Mitake volcano in Nagano Prefecture had more volcanic earthquakes at 14:00 that day, and the inclinometer near the top of the mountain showed changes in uplift.
Therefore, the Meteorological Agency raised the volcano's alert level from level 1 to level 2 on the afternoon of the 23rd, and has sealed off the area around the crater.
The Meteorological Agency reminds people to be alert to rockfalls that may be caused by volcanic eruptions within a range of about 1 km from the crater.
(He Xinlei, Headquarters reporter)