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On the Relationships of Water-Level Variations in the E-1 Well, Kamchatka to the 2008–2009 Resumption of Activity on Koryakskii Volcano and to Large (M ≥ 5) Earthquakes

Kopylova G.N., Boldina S.V. (2012) On the Relationships of Water-Level Variations in the E-1 Well, Kamchatka to the 2008–2009 Resumption of Activity on Koryakskii Volcano and to Large (M ≥ 5) Earthquakes // Journal of Volcanology and Seismology. Vol. 6, No. 5. pp. 312-328. doi: 10.1134/S074204631205003X.

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Abstract

Abstract—We discuss the water!level variations in the E!1 well for the time period between May 2006 and 2010, inclusive. A trend towards an increasing level at an abnormally high rate occurred from mid!2006 to December 2009. This increase is regarded as the response of the aquifer of gas!saturated ground water that exists in the volcanogenic–sedimentary deposits of the Avacha volcano!tectonic depression to volumetric strain changes during the precursory period and the occurrence of a swarm of small earthquakes ( = 8.3) in the area of Koryakskii Volcano and to its phreatic eruption. We estimated the volumetric compression as Δε = –(4.1 × 10–6–1.5 × 10–5) from the amplitude of water!level rise using the elastic parameters of the wa! ter!saturated rocks. While the strain source was active, we observed a decreasing sensitivity of the hydrologic regime in the well to the precursory processes before large (M ≥ 5.0) tectonic earthquakes.
Item Type: Article
Title: On the Relationships of Water-Level Variations in the E-1 Well, Kamchatka to the 2008–2009 Resumption of Activity on Koryakskii Volcano and to Large (M ≥ 5) Earthquakes
Language: English
Journal or Publication Title: Journal of Volcanology and Seismology
ISSN Print: 0742-0463
ISSN Online: 1819-7108
Subjects: State scientific and technical information rubricator (ГРНТИ) > 37 ГЕОФИЗИКА > 37.31 Физика Земли > 37.31.19 Сейсмология
State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.61 Гидрогеология > 38.61.05 Моделирование гидрогеологических процессов
State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.61 Гидрогеология > 38.61.15 Динамика и режим подземных вод
Volcanoes > 1 Volcanoes of the Kurile-Kamchatka Region > 1.1 Kamchatka > Koryaksky
Depositing User: С.В. Болдина
Date Deposited: 12 Sep 2016 05:47
Last Modified: 04 Oct 2016 02:17
URI: http://repo.kscnet.ru/id/eprint/2742

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