Options and Challenges in Seismic Disaster Prediction: the 1984 Dzhirgatal, Tajikistan Destructive Earthquakeстатья
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Дата последнего поиска статьи во внешних источниках: 3 ноября 2018 г.
Аннотация:Abstract—A set of realizations of various geophysical parameters, the monitoring of which was performed for many years at the Garm. Tajikistan research test area of the Joint Institute of Physics of the Earth was analyzed. Variations in these parameters before the Dzhirgatal destructive earthquake (M = 6.4) of October 26, 1984, were used to discuss the theoretical possibility and challenge of seismic disaster prediction. The earthquake was preceded by considerable variations in a set of geophysical parameters for 1982 through 1984. Nevertheless, a cause- and effect-relation between these variations and the origin of a strong earthquake cannot be assumed because long-period variations in the observed parameters allow various interpretations. A probable 3- to 3.5-year quasi-regular period is supposed to be present in the variations analyzed, which does not appear to have a causal relation with the origin of the Dzhirgatal earthquake.