Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085062 |
Earthquake Depth Phase Extraction With P Wave Autocorrelation Provides Insight Into Mechanisms of Intermediate-Depth Earthquakes | |
Fang, Hongjian; van der Hilst, Robert D. | |
2019-12-27 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA |
英文摘要 | Constraining the mechanism of earthquakes in subduction zones requires adequate estimates of source location and near-source elastic properties. In this study, we propose a P wave autocorrelation-based method to extract depth phase energy from teleseismic earthquakes with moment magnitude down to 4.0. We apply the method to improve location estimates of intermediate-depth earthquakes in the Japan and northern Chile subduction zones, which represent so-called cold and warm slabs, respectively, and which are both marked by double seismic zones. A positive correlation of slab age and double-seismic-zone width validates a thermally controlled model of slab morphology. The negative to normal differential times (and, thus, low or normal Vp/Vs) of the deep parts of the double seismic zones suggest that the intermediate-depth earthquakes considered here are not due to dehydration. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000504536800001 |
WOS关键词 | SUBDUCTION ZONE SEISMICITY ; HIGH PORE PRESSURES ; MANTLE SERPENTINIZATION ; OCEANIC-CRUST ; FORE-ARC ; DEHYDRATION ; FAULT ; PSEUDOTACHYLYTES ; EMBRITTLEMENT ; BENEATH |
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/225258 |
专题 | 环境与发展全球科技态势 |
作者单位 | MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA |
推荐引用方式 GB/T 7714 | Fang, Hongjian,van der Hilst, Robert D.. Earthquake Depth Phase Extraction With P Wave Autocorrelation Provides Insight Into Mechanisms of Intermediate-Depth Earthquakes[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Fang, Hongjian,&van der Hilst, Robert D..(2019).Earthquake Depth Phase Extraction With P Wave Autocorrelation Provides Insight Into Mechanisms of Intermediate-Depth Earthquakes.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Fang, Hongjian,et al."Earthquake Depth Phase Extraction With P Wave Autocorrelation Provides Insight Into Mechanisms of Intermediate-Depth Earthquakes".GEOPHYSICAL RESEARCH LETTERS (2019). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论