Imaging the 2016 M-w 7.8 Kaikoura, New Zealand, earthquake with   teleseismic P waves: A cascading rupture across multiple faults

doi:10.1002/2017GL073461

CORC > 北京大学 > 地球与空间科学学院

	Imaging the 2016 M-w 7.8 Kaikoura, New Zealand, earthquake with teleseismic P waves: A cascading rupture across multiple faults
	Zhang, Hao ; Koper, Keith D. ; Pankow, Kristine ; Ge, Zengxi
刊名	GEOPHYSICAL RESEARCH LETTERS
	2017
关键词	2008 WENCHUAN EARTHQUAKE GROUND-MOTION SUMATRA EARTHQUAKE BACK-PROJECTION STRESS DROP RADIATION INVERSION TRACKING EXTENT ARRAY
DOI	10.1002/2017GL073461
英文摘要	The 13 November 2016 M-w 7.8 Kaikoura, New Zealand, earthquake was investigated using teleseismic P waves. Backprojection of high-frequency P waves from two regional arrays shows unilateral rupture of at least two southwest-northeast striking faults with an average rupture speed of 1.4-1.6 km/s and total duration of similar to 100 s. Guided by these backprojection results, 33 globally distributed low-frequency P waves were inverted for a finite fault model (FFM) of slip. The FFM showed evidence of several subevents; however, it lacked significant moment release near the epicenter, where a large burst of high-frequency energy was observed. A local strong-motion network recorded strong shaking near the epicenter; hence, for this earthquake the distribution of backprojection energy is superior to the FFM as a guide of strong shaking. For future large earthquakes that occur in regions without strong-motion networks, initial shaking estimates could benefit from backprojection constraints.; University of Utah; National Scientific Foundation of China [41374045]; National Basic Research Program of China [2012CB417301]; SCI(E); ARTICLE; 10; 4790-4798; 44
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473315]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhang, Hao,Koper, Keith D.,Pankow, Kristine,et al. Imaging the 2016 M-w 7.8 Kaikoura, New Zealand, earthquake with teleseismic P waves: A cascading rupture across multiple faults[J]. GEOPHYSICAL RESEARCH LETTERS,2017.
APA	Zhang, Hao,Koper, Keith D.,Pankow, Kristine,&Ge, Zengxi.(2017).Imaging the 2016 M-w 7.8 Kaikoura, New Zealand, earthquake with teleseismic P waves: A cascading rupture across multiple faults.GEOPHYSICAL RESEARCH LETTERS.
MLA	Zhang, Hao,et al."Imaging the 2016 M-w 7.8 Kaikoura, New Zealand, earthquake with teleseismic P waves: A cascading rupture across multiple faults".GEOPHYSICAL RESEARCH LETTERS (2017).