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DOI | 10.1002/2017GL074573 |
Rupture-Depth-Varying Seismicity Patterns for Major and Great (M-w >= 7.0) Megathrust Earthquakes | |
Wetzler, Nadav1,2; Lay, Thorne1; Brodsky, Emily E.1; Kanamori, Hiroo3 | |
2017-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Israel |
英文摘要 | Large earthquakes on subduction zone plate boundary megathrusts result from intervals of strain accumulation and release. The mechanism diversity and spatial distribution of moderate-size aftershocks is influenced by the mainshock rupture depth extent. Mainshocks that rupture across the shallow megathrust to near the trench have greater intraplate aftershock faulting diversity than events with rupture confined to deeper portions of the megathrust. Diversity of intraplate aftershock faulting also increases as the size of the mainshock approaches the largest size event to have ruptured that region of the megathrust. Based on these tendencies, we identify breakthrough ruptures as those involving shallow rupture of the megathrust with volumetrically extensive elastic strain drop around the plate boundary that allows activation of diverse intraplate faulting influenced by long-term ambient deformation stresses. In contrast, homogeneity of the aftershock faulting mechanisms indicates only partial release of elastic strain energy and remaining potential for another large rupture. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413921300017 |
WOS关键词 | TOHOKU-OKI EARTHQUAKE ; SUBDUCTION ZONE ; GROUND-MOTION ; INVERSION ; FIELD |
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/28779 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA; 2.Geol Survey Israel, Jerusalem, Israel; 3.CALTECH, Seismol Lab, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Wetzler, Nadav,Lay, Thorne,Brodsky, Emily E.,et al. Rupture-Depth-Varying Seismicity Patterns for Major and Great (M-w >= 7.0) Megathrust Earthquakes[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19). |
APA | Wetzler, Nadav,Lay, Thorne,Brodsky, Emily E.,&Kanamori, Hiroo.(2017).Rupture-Depth-Varying Seismicity Patterns for Major and Great (M-w >= 7.0) Megathrust Earthquakes.GEOPHYSICAL RESEARCH LETTERS,44(19). |
MLA | Wetzler, Nadav,et al."Rupture-Depth-Varying Seismicity Patterns for Major and Great (M-w >= 7.0) Megathrust Earthquakes".GEOPHYSICAL RESEARCH LETTERS 44.19(2017). |
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