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DOI | 10.1002/2017GL075293 |
Relative Source Locations of Continuous Tremor Before and After the Subplinian Events at Shinmoe-dake, in 2011 | |
Ichihara, M.1; Matsumoto, S.2 | |
2017-11-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | Volcano monitoring systems are not always ready to resolve signals at the onset of eruptive activity. This study makes use of stations installed later to calibrate the performance of the stations that had been operated before the eruption. Seven stations recorded continuous volcanic tremor before and during the subplinian eruptions of Shinmoe-dake, Japan, in 2011. We estimated the source locations of the tremor using the amplitude distribution. The stability of the analysis was obtained by careful selection of time windows in which signals from a single source are dominated. The site effects and the regional attenuation factor were evaluated using tremor recorded after the major eruptions by a dense seismic array and a good number of stations. A tremor source changed its depth beneath the crater for 1 week before the major eruption, rising from a depth of a few kilometer to the water layer 3 times, each of which occurred following shallow inflation and minor eruptions. It is interpreted as migration of gas probably with magma, which further transported heat to the water layer and triggered the subplinian eruptions. |
英文关键词 | tremor eruption seismic array magma movement source location |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418572900020 |
WOS关键词 | LA-FOURNAISE VOLCANO ; ERUPTION ; KIRISHIMA ; KILAUEA |
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/28992 |
专题 | 气候变化 |
作者单位 | 1.Univ Tokyo, Earthquake Res Inst, Tokyo, Japan; 2.Kyushu Univ, Inst Seismol & Volcanol, Fac Sci, Shimabara, Japan |
推荐引用方式 GB/T 7714 | Ichihara, M.,Matsumoto, S.. Relative Source Locations of Continuous Tremor Before and After the Subplinian Events at Shinmoe-dake, in 2011[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(21). |
APA | Ichihara, M.,&Matsumoto, S..(2017).Relative Source Locations of Continuous Tremor Before and After the Subplinian Events at Shinmoe-dake, in 2011.GEOPHYSICAL RESEARCH LETTERS,44(21). |
MLA | Ichihara, M.,et al."Relative Source Locations of Continuous Tremor Before and After the Subplinian Events at Shinmoe-dake, in 2011".GEOPHYSICAL RESEARCH LETTERS 44.21(2017). |
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