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2019•E3S Web of ConferencesOpen access

Observation of the seismic mode «drumbeats» on volcanoes of the world and Kizimen volcano (Russia)

А. А. Шакирова, П. П. Фирстов

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Abstract

The squeezing of viscous lava flows or blocks on an extrusive dome during eruptions of andesitic and dacitic volcanoes is accompanied by volcanic earthquakes the seismic mode «drumbeats». The features of this mode are the quasi-periodicity of the volcanic earthquakes appearance for a long time, uniform waveforms and close VE magnitudes. This mode shows surprisingly the equilibrium behavior of a volcanic eruption.

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What this paper is about

The squeezing of viscous lava flows or blocks on an extrusive dome during eruptions of andesitic and dacitic volcanoes is accompanied by volcanic earthquakes the seismic mode «drumbeats». The features of this mode are the quasi-periodicity of the volcanic earthquakes appearance for a long time, uniform waveforms and close VE magnitudes. This mode shows surprisingly the equilibrium behavior of a volcanic eruption.

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Available abstract

The squeezing of viscous lava flows or blocks on an extrusive dome during eruptions of andesitic and dacitic volcanoes is accompanied by volcanic earthquakes the seismic mode «drumbeats». The features of this mode are the quasi-periodicity of the volcanic earthquakes appearance for a long time, uniform waveforms and close VE magnitudes. This mode shows surprisingly the equilibrium behavior of a volcanic eruption.

Key concepts: Extrusive, Volcano, Lava, Geology, Seismology, Lava dome, Andesite, Mode (computer interface)

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