Three-Dimensional Pore Fluid Pressures in Source Region of 2017 Pohang Earthquake Inferred From Earthquake Focal Mechanisms

doi:10.1029/2019GL085964

GSTDTAP > 气候变化

DOI	10.1029/2019GL085964
	Three-Dimensional Pore Fluid Pressures in Source Region of 2017 Pohang Earthquake Inferred From Earthquake Focal Mechanisms
	Terakawa, Toshiko 1; Seo, Wooseok 2; Kim, Kwang-Hee 2; Ree, Jin-Han 3
	2020-05-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2020
卷号	47 期号:9
文章类型	Article
语种	英语
国家	Japan; South Korea
英文摘要	We analyzed 91 focal mechanism data with relocated hypocenters to estimate the 3-D pore fluid pressure field in the source region of the 2017 Pohang earthquake in South Korea using the method of focal mechanism tomography. The upper limit of pore fluid pressure was 8 +/- 3 MPa in a location northwest of the enhanced geothermal system. The overpressurized fluids were localized in the footwall of the causative fault. It was directly connected to the open hole section of PX2, and fluid injection into this hole could have triggered the mainshock.
英文关键词	Pohang earthquake pore fluid pressure stress friction coefficient earthquake focal mechanism inversion analysis
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000536639500001
WOS关键词	BAYESIAN INFORMATION CRITERION ; ENHANCED GEOTHERMAL SYSTEMS ; DATA INVERSION ; TECTONIC STRESS ; FRICTION ; PERMEABILITY ; SEISMICITY ; FAULTS
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/279900
专题	气候变化
作者单位	1.Nagoya Univ, Earthquake & Volcano Res Ctr, Grad Sch Environm Studies, Nagoya, Aichi, Japan; 2.Pusan Natl Univ, Dept Geol Sci, Busan, South Korea; 3.Korea Univ, Dept Earth & Environm Sci, Seoul, South Korea
推荐引用方式 GB/T 7714	Terakawa, Toshiko,Seo, Wooseok,Kim, Kwang-Hee,et al. Three-Dimensional Pore Fluid Pressures in Source Region of 2017 Pohang Earthquake Inferred From Earthquake Focal Mechanisms[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(9).
APA	Terakawa, Toshiko,Seo, Wooseok,Kim, Kwang-Hee,&Ree, Jin-Han.(2020).Three-Dimensional Pore Fluid Pressures in Source Region of 2017 Pohang Earthquake Inferred From Earthquake Focal Mechanisms.GEOPHYSICAL RESEARCH LETTERS,47(9).
MLA	Terakawa, Toshiko,et al."Three-Dimensional Pore Fluid Pressures in Source Region of 2017 Pohang Earthquake Inferred From Earthquake Focal Mechanisms".GEOPHYSICAL RESEARCH LETTERS 47.9(2020).