It is announced that there were multiple times of relatively large rock collapses in Hakuba Daisekkei by Dr. Narama Chiyuki (Nature Physics) from Niigata University. The collapses happened in No.3 Sekkei of Daisekkei and there is a black long band of rocks which has a length of 900 meters and width of 40 meters.
*Nagano Prefecture Mountain Rescue Team announces “Mountain Trail Caution Information” at the official account of X.