气候变化领域集成服务门户(CCPortal): Structural Controls on Rupture Extent of Recent Sumatran Fault Zone Earthquakes, Indonesia

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DOI	10.1029/2019JB018101
	Structural Controls on Rupture Extent of Recent Sumatran Fault Zone Earthquakes, Indonesia
	Salman R.; Lindsey E.O.; Feng L.; Bradley K.; Wei S.; Wang T.; Daryono M.R.; Hill E.M.
发表日期	2020
ISSN	21699313
卷号	125 期号:2
英文摘要	We present geodetically derived coseismic slip models for four Mw ~6 strike-slip earthquakes that struck the mainland island of Sumatra, Indonesia, between 2007 and 2016. Three of these earthquakes ruptured segments of the Sumatran Fault Zone: the 2007 Mw 6.3 and 6.4 Lake Singkarak doublet, and the 2009 Mw 6.6 Dikit event. The fourth earthquake, the 2016 Mw 6.6 Pidie Jaya event, ruptured an unmapped active fault in a region of historically low seismicity near the northern coast of Aceh. Our results suggest that (1) the estimated rupture extents of the 2007 Lake Singkarak doublet and 2009 Dikit event were limited by geological structures such as step overs that define segment boundaries, (2) the 2016 Pidie Jaya event did not produce surface rupture despite the fact that it produced large shallow slip of more than 2.5 m, and (3) the remaining seismic gaps on the Sumatran Fault Zone are primarily located between the equator and northern Sumatra. We strongly recommend that seismic hazard assessment for densely populated areas in Sumatra include threats not only from the Sumatran Fault Zone but also from additional potentially active faults outside of the main Sumatran Fault Zone. © 2020. The Authors.
英文关键词	earthquakes; rupture extent; structural controls; Sumatran Fault Zones
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187976
作者单位	Earth Observatory of Singapore, NTU, Singapore; Asian School of the Environment, NTU, Singapore; School of Earth and Space Sciences, Peking University, Beijing, China; Indonesian Institute of Sciences, Bandung, Indonesia
推荐引用方式 GB/T 7714	Salman R.,Lindsey E.O.,Feng L.,et al. Structural Controls on Rupture Extent of Recent Sumatran Fault Zone Earthquakes, Indonesia[J],2020,125(2).
APA	Salman R..,Lindsey E.O..,Feng L..,Bradley K..,Wei S..,...&Hill E.M..(2020).Structural Controls on Rupture Extent of Recent Sumatran Fault Zone Earthquakes, Indonesia.Journal of Geophysical Research: Solid Earth,125(2).
MLA	Salman R.,et al."Structural Controls on Rupture Extent of Recent Sumatran Fault Zone Earthquakes, Indonesia".Journal of Geophysical Research: Solid Earth 125.2(2020).