气候变化领域集成服务门户(CCPortal): The 2017 ML 5.4 Pohang earthquake sequence, Korea, recorded by a dense seismic network

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DOI	10.1016/j.tecto.2019.228306
	The 2017 ML 5.4 Pohang earthquake sequence, Korea, recorded by a dense seismic network
	Kim K.-H.; Seo W.; Han J.; Kwon J.; Kang S.Y.; Ree J.-H.; Kim S.; Liu K.
发表日期	2020
ISSN	00401951
卷号	774
英文摘要	The 2017 ML 5.4 Pohang Earthquake in southeastern Korea, which was induced by fluid injection from an enhanced geothermal system, and its foreshock–aftershock sequence has been recorded by a dense and portable temporary seismic array. The hypocentral distribution of the earthquake sequence reveals the reactivation of a complex subsurface fault system that was previously unmapped. Aftershock seismicity propagated to the southwest and revealed previously unknown fault segments. The aftershocks tend to concentrate along the tips of the main rupture, with a lack of aftershocks around the mainshock hypocenter. This pattern suggests that the stress in the mainshock area was almost completely released during the mainshock and early aftershock phase, and that the recurrence of moderate to large earthquakes in the hypocentral area is unlikely compared with the marginal areas. A new rupture occurred along the southwestern margin of the main rupture after the largest aftershock (ML 4.6). © 2019 Elsevier B.V.
关键词	2017 Pohang Earthquake Aftershock Fault Induced seismicity Seismic hazard
英文关键词	Faulting; Geothermal fields; Induced Seismicity; Aftershock; Aftershock sequence; Earthquake sequences; Enhanced geothermal systems; Fluid injections; Large earthquakes; Seismic hazards; Seismic networks; Earthquakes; aftershock; earthquake event; earthquake hypocenter; fault; fluid injection; induced seismicity; seismic hazard; seismograph; North Kyongsang; Pohang; South Korea
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207789
作者单位	Department of Geological Science, Pusan National University, Busan, 46241, South Korea; Department of Earth and Environmental Sciences, Korea University, Seoul, 02841, South Korea; Office of China National Scientific Seafloor Observation Program, Tongji University, Shanghai, 200092, China
推荐引用方式 GB/T 7714	Kim K.-H.,Seo W.,Han J.,et al. The 2017 ML 5.4 Pohang earthquake sequence, Korea, recorded by a dense seismic network[J],2020,774.
APA	Kim K.-H..,Seo W..,Han J..,Kwon J..,Kang S.Y..,...&Liu K..(2020).The 2017 ML 5.4 Pohang earthquake sequence, Korea, recorded by a dense seismic network.Tectonophysics,774.
MLA	Kim K.-H.,et al."The 2017 ML 5.4 Pohang earthquake sequence, Korea, recorded by a dense seismic network".Tectonophysics 774(2020).