干旱区生态环境知识资源中心(Arid): Ground fracturing at the southern end of Summit Ridge caused by October 17, 1989 Loma Prieta, California, earthquake sequence (maps of Summit Ridge Shear Zones, en echelon tension cracks, complex and compound fractures, and small faults that formed coactively with the earthquake sequence)

Arid

DOI	10.2172/677053
报告编号	USGS-OFR--97-129
来源ID	OSTI_ID: 677053
	Ground fracturing at the southern end of Summit Ridge caused by October 17, 1989 Loma Prieta, California, earthquake sequence (maps of Summit Ridge Shear Zones, en echelon tension cracks, complex and compound fractures, and small faults that formed coactively with the earthquake sequence)
	Martosudarmo, S.Y. [BPP Technologi, Jakarta (Indonesia)]; Johnson, A.M. [Purdue Univ., West Lafayette, IN (United States). Harry Fielding Reid Earthquake Research Lab.]; Fleming, R.W. [Geological Survey, Denver, CO (United States)]
英文摘要	The Loma Prieta earthquake of 17 October 1989 was the first of three large earthquakes that occurred in California in less than 5 years. The main shock of the Loma Prieta earthquake was deep-seated, the rupture zones of the main shock did not reach the surface, and the earthquake produced enigmatic surface ruptures along the frontal faults of the Coast Range and in the epicentral area that were explained in several quite different ways. The Landers earthquake of 28 June 1992 was near surface and produced more than 80 km of spectacular surface rupture of many different kinematic expressions. Detailed study of fractures at Landers has provided a basis for re-evaluating earlier work on fractures produced by the Loma Prieta earthquake. This paper is a description of some of the fractures produced by the Loma Prieta earthquake and a discussion of their causes. Detailed mapping (scale of 1:250) in an area on either side of Summit Road and between Morrell Cutoff Road in the northwest and the intersection of Summit Road and San Jose-Soquel Road in the southeast has provided documentation of fracture orientations and differential displacements required to decipher the ground deformation in that area during the Loma Prieta earthquake.
出版年	1997
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	58 GEOSCIENCES ; CALIFORNIA ; EARTHQUAKES ; GEOLOGIC FRACTURES ; ROCK MECHANICS ; SEISMIC EFFECTS ; GEOLOGIC FAULTS ; MAPS
URL	http://www.osti.gov/scitech/servlets/purl/677053
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/267399
推荐引用方式 GB/T 7714	Martosudarmo, S.Y. [BPP Technologi, Jakarta ,Johnson, A.M. [Purdue Univ., West Lafayette, IN ,Fleming, R.W. [Geological Survey, Denver, CO . Ground fracturing at the southern end of Summit Ridge caused by October 17, 1989 Loma Prieta, California, earthquake sequence (maps of Summit Ridge Shear Zones, en echelon tension cracks, complex and compound fractures, and small faults that formed coactively with the earthquake sequence),1997.