Encyclopedia
Collapse
Rockfall: Detachment and falling of large masses of rock from steep and rocky slopes of mountains, river valleys, and coastal areas, occurring mainly due to the weakening of rock cohesion under the influence of weathering processes and the activity of surface and subsurface waters
Source: "SAFETY IN EMERGENCY SITUATIONS. NATURAL EMERGENCY SITUATIONS. TERMS AND DEFINITIONS. GOST 22.0.03-97/GOST R 22.0.03-95"
(approved by the Decree of the State Standard of Russia dated May 25, 1995 No. 267)