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Acoustic, Magnetic, and Electric Effects of Stromboli Volcano Eruption, Italy, in July–August 2019
Izvestiya, Physics of the Solid Earth ( IF 1 ) Pub Date : 2020-09-01 , DOI: 10.1134/s1069351320050122
A. A. Spivak , Yu. S. Rybnov , S. A. Riabova , S. P. Soloviev , V. A. Kharlamov

Abstract The results of instrumental observations of acoustic oscillations, geomagnetic variations, and variations in the electric field and atmospheric electric current during the activation of the Stromboli volcano, Italy, in 2019 are presented. Separately considered are the periods of explosive activity and the interval marked by intense emission of incandescent ash-and-gas mixture. It is shown that volcanic activity is accompanied by acoustic signal generation at the explosive stages of the eruption and by the emergence of internal gravity waves at the stage of intense effusion of ash and gas (“purging”). The characteristic variations in the Earth’s magnetic field and in the electrical parameters of the atmospheric surface layer are observed during different periods of volcanic eruption. The presented results expand the existing database and can be useful for improving the existing models and developing the new models describing the effect of volcanic activity on the geophysical environment as well as for verifying these models.

中文翻译:

2019 年 7 月至 8 月意大利斯特龙博利火山喷发的声学、磁学和电学影响

摘要 介绍了 2019 年意大利斯特龙博利火山激活期间声波振荡、地磁变化以及电场和大气电流变化的仪器观测结果。分别考虑爆炸活动的时期和以炽热的灰烬和气体混合物的强烈排放为标志的间隔。结果表明,火山活动在喷发的爆发阶段伴随着声信号的产生,在火山灰和气体的强烈喷出(“吹扫”)阶段伴随着内部重力波的出现。在火山爆发的不同时期观察到地球磁场和大气表层电参数的特征变化。
更新日期:2020-09-01
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