Erosion and Mudflows at Usu Volcano after the 1977-1978 eruption: August 1977-December 1979
; Géomorphologie volcanique ; Hokkaido ; Iburi ; Japon ; Lave torrentielle ; Pierre ponce ; Pluie de boue ; Projection volcanique ; Usu Volcano ; Volcanisme
This paper describes the aspects and sequences of erosion and mudflows (rain lahars) at Usu Volcano after the burst of the 1977-1978 eruption, on the basis of field work carried out by the authors from August 1977 to December 1979. An event