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DOI | 10.1038/NGEO2952 |
Deep and shallow long-period volcanic seismicity linked by fluid-pressure transfer | |
Shapiro, N. M.1,2; Droznin, D. V.3; Droznina, S. Ya.3; Senyukov, S. L.3; Gusev, A. A.2,3; Gordeev, E. I.2,3 | |
2017-06-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Russia |
英文摘要 | Volcanic long-period earthquakes are attributed to pressure fluctuations that result from unsteady mass transport in the plumbing system of volcanoes. Whereas most of the long-period seismicity is located close to the surface, the volcanic deep long-period earthquakes that occur in the lower crust and uppermost mantle reflect the activity in the deep parts of magmatic systems. Here, we present observations of long-period earthquakes that occurred in 2011-2012 within the Klyuchevskoy volcano group in Kamchatka, Russia. We show two distinct groups of long-period sources: events that occurred just below the active volcanoes, and deep long-period events at depths of similar to 30 km in the vicinity of a deep magmatic reservoir. We report systematic increases of the long-period seismicity levels prior to volcanic eruptions with the initial activation of the deep long-period sources that reflects pressurization of the deep reservoir and consequent transfer of the activity towards the surface. The relatively fast migration of the long-period activity suggests that a hydraulic connection is maintained between deep and shallow magmatic reservoirs. The reported observations provide evidence for the pre-eruptive reload of the shallow magmatic reservoirs from depth, and suggest that the deep long-period earthquakes could be used as a reliable early precursor of eruptions. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402579200014 |
WOS关键词 | LOW-FREQUENCY EARTHQUAKES ; BEZYMIANNY VOLCANO ; MAGMA SOURCE ; KAMCHATKA ; ERUPTION ; TREMORS ; BENEATH ; PERMEABILITY ; GUERRERO ; EVENTS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35152 |
专题 | 地球科学 气候变化 |
作者单位 | 1.CNRS, UMR7154, Sorbonne Paris Cite, Inst Phys Globe Paris, 1 Rue Jussieu, F-75238 Paris 5, France; 2.RAS, Inst Volcanol & Seismol FEB, 9 Piip Blvd, Petropavlovsk Kamchatski 683006, Kamchatsky Regi, Russia; 3.Russian Acad Sci, Kamchatka Branch Geophys Survey, 9 Piip Blvd, Petropavlovsk Kamchatski 683006, Kamchatsky Regi, Russia |
推荐引用方式 GB/T 7714 | Shapiro, N. M.,Droznin, D. V.,Droznina, S. Ya.,et al. Deep and shallow long-period volcanic seismicity linked by fluid-pressure transfer[J]. NATURE GEOSCIENCE,2017,10(6). |
APA | Shapiro, N. M.,Droznin, D. V.,Droznina, S. Ya.,Senyukov, S. L.,Gusev, A. A.,&Gordeev, E. I..(2017).Deep and shallow long-period volcanic seismicity linked by fluid-pressure transfer.NATURE GEOSCIENCE,10(6). |
MLA | Shapiro, N. M.,et al."Deep and shallow long-period volcanic seismicity linked by fluid-pressure transfer".NATURE GEOSCIENCE 10.6(2017). |
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