Anatomy of the Bezymianny volcano merely before an explosive eruption on 20.12.2017.

ABSTRACT: Strong explosive eruptions of volcanoes throw out mixtures of gases and ash from high-pressure underground reservoirs. Investigating these subsurface reservoirs may help to forecast and characterize an eruption. In this study, we compare seismic tomography results with remote sensing and petrology data to identify deep and subaerial manifestations of pre-eruptive processes at Bezymianny volcano in Kamchatka shortly before its violent explosion on December 20, 2017. Based on camera networks we identify precursory rockfalls, and based on satellite radar data we find pre-eruptive summit inflation. Our seismic network recorded the P and S wave data from over 500 local earthquakes used to invert for a 3D seismic velocity distribution beneath Bezymianny illuminating its eruptive state days befor

SUBMITTER: Koulakov I 

PROVIDER: S-EPMC7815830 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature