首页> 外文期刊>Journal of Volcanology and Geothermal Research >Seismic vs. geodetic moments at Mt. Etna volcano: A tool for a rapid understanding the eruptive behaviour?
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Seismic vs. geodetic moments at Mt. Etna volcano: A tool for a rapid understanding the eruptive behaviour?

机译:大山山的地震时刻与大地时刻。埃特纳火山(Etna volcano):快速了解喷发行为的工具吗?

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摘要

The seismic to geodetic moment ratio (M-o/M-G) related to seven magma intrusion episodes, occurring at Mt. Etna volcano between 1981 and 2008, are considered.The lateral eruptions show a moment ratio of 0.04-0.06; meaning that only about 5% of the stress energy accumulated with ground deformation was released by earthquakes. Significantly higher values instead characterized vertical (0.25-0.50) and non-eruptive (0.17) dike intrusions.This paper proposes a simple relationship, in order to estimate, during the early phases of an eruption, the intruding magma volumes by the cumulative seismic moment (of the ongoing seismicity) and elapsed time. (C) 2018 Elsevier B.V. All rights reserved.
机译:地震与大地矩之比(M-o / M-G)与7个岩浆侵入事件有关,发生在山顶。考虑到1981年至2008年之间的埃特纳火山。横向喷发的弯矩比为0.04-0.06;这意味着,只有大约5%的因地面变形而积累的应力能是由地震释放的。较高的取而代之的是垂直(0.25-0.50)和非火山岩(0.17)的堤防侵入。本文提出了一种简单的关系,以便在火山爆发的早期阶段通过累积地震矩来估算岩浆的侵入量。 (正在进行的地震活动)和经过的时间。 (C)2018 Elsevier B.V.保留所有权利。

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