Abstract

Seismic activation of Avacha volcano was observed from late October to late December 2019, when six swarm sequences of volcanic earthquakes of various types occurred in its edifice. In the swarm sequences, 15 plane-oriented clusters were identified, and the characteristics of their seismogenic areas were determined. A comprehensive analysis of seismic events indicates that the activation of Avacha volcano at the end of 2019 occurred because of the interaction of meteoric waters with magma bodies, which formed during the effusive eruption of 1991 within the volcanic edifice.

中文翻译：

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2019年底阿瓦查火山地震激活的特殊性

摘要

从2019年10月下旬至2019年12月下旬，观察到阿瓦查火山的地震活化作用，当时在其大厦内发生了六组群各种类型的火山地震。在群序列中，确定了15个面向平面的星​​团，并确定了它们的发震区域的特征。对地震事件的全面分析表明，Avacha火山在2019年底被激活是由于陨石水与岩浆体的相互作用，这是在1991年火山大厦内喷发期间形成的。