气候变化领域集成服务门户(CCPortal): The aftershock signature of supershear earthquakes

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DOI	10.1126/science.1155030
	The aftershock signature of supershear earthquakes
	Bouchon M.; Karabulut H.
发表日期	2008
ISSN	0036-8075
起始页码	1323
结束页码	1325
卷号	320 期号:5881
英文摘要	Recent studies show that earthquake faults may rupture at speeds exceeding the shear wave velocity of rocks. This supershear rupture produces in the ground a seismic shock wave similar to the sonic boom produced by a supersonic airplane. This shock wave may increase the destruction caused by the earthquake. We report that supershear earthquakes are characterized by a specific pattern of aftershocks: The fault plane itself is remarkably quiet whereas aftershocks cluster off the fault, on secondary structures that are activated by the supershear rupture. The post-earthquake quiescence of the fault shows that friction is relatively uniform over supershear segments, whereas the activation of off-fault structures is explained by the shock wave radiation, which produces high stresses over a wide zone surrounding the fault.
英文关键词	aftershock; earthquake; fault; S-wave; secondary structure; aftershock; article; earthquake; friction; geographic and geological phenomena; motion; priority journal; rock; shear stress; shock wave; topography; velocity
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243106
作者单位	Centre National de la Recherche Scientifique, Université Joseph Fourier, Grenoble, Laboratoire de Géophysique Interne et Tectonophysique, Boîte Postale 53, 38041 Grenoble, France; Kandilli Observatory and Earthquake Research Institute, Bogaziçi University, Istanbul Kandilli Observatory, 81220 Cengelköy, Istanbul, Turkey
推荐引用方式 GB/T 7714	Bouchon M.,Karabulut H.. The aftershock signature of supershear earthquakes[J],2008,320(5881).
APA	Bouchon M.,&Karabulut H..(2008).The aftershock signature of supershear earthquakes.Science,320(5881).
MLA	Bouchon M.,et al."The aftershock signature of supershear earthquakes".Science 320.5881(2008).