Mechanical State of Local Crustal Areas as Deduced
from Relaxation Processes

V. V. Adushkin, A. A. Spivak, and V. G. Spungin

Institute of Geosphere Dynamics, Russian Academy of Sciences, Leninskii pr. 38-6, Moscow, 117334 Russia

Received May 5, 1996

Abstract—The mechanical stability of local geological environments is described as a function of the relax-
ation regime. A computational model of relaxation processes is proposed for assessing the size of the active
structural block L, the stress drop , the slip of the active block due to relaxation, and the released energy E
based on the parameters of the observed microvibrations. An approach to the ranking of local crustal areas
based on mechanical stability is developed.