Encyclopedia
Earthquake epicenter
Earthquake hypocenter: The area of origin of an underground shock within the Earth's crust or upper mantle, which causes the earthquake
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)