Encyclopedia
Lava flow
Lava flow: A form of lava deposition from a volcano characterized by significant length, reaching several tens of kilometers, with relatively small width and thickness
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)