Constraints on unrest in the Tolbachik volcanic zone in Kamchatka prior the 2012-13 flank fissure eruption of Plosky Tolbachik volcano from local seismicity and GPS data
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- 作者：Yulia Kugaenko ; ku@emsd.ru" class="auth_mail" title="E-mail the corresponding author ; kugaenko@mail.ru" class="auth_mail" title="E-mail the corresponding author ; Nikolay Titkov ; Vadim Saltykov
- 关键词：Kamchatka ; 2012&ndash ; 13 Tolbachik eruption ; Pre-eruption crustal deformation ; Pre-eruption seismic activization ; Volcanic unrest ; Eruption precursors
- 刊名：Journal of Volcanology and Geothermal Research
- 出版年：2015
- 出版时间：1 December 2015
- 年：2015
- 卷：307
- 期：Complete
- 页码：38-46
- 全文大小：4075 K
文摘
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We study the unrest prior the 2012–13 Tolbachik eruption from seismic and GPS data.
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We analyzed the earth surface displacement and seismicity before the eruption.
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Pre-eruption crustal deformation, seismicity increase and acceleration were detected.
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Duration of seismic and deformation anomaly was ~ 4–5 months before the eruption
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This 4–5-month anomaly can be considered as a medium-term eruption precursor.