Assessing whether the 2017 Mw5.4 Pohang earthquake in South Korea was an induced event

Kwang Hee Kim; Jin Han Ree; Young Hee Kim; Sungshil Kim; Su Young Kang; Wooseok Seo

doi:10.1126/science.aat6081

Assessing whether the 2017 M_w5.4 Pohang earthquake in South Korea was an induced event

Kwang Hee Kim, Jin Han Ree, Young Hee Kim, Sungshil Kim, Su Young Kang, Wooseok Seo

Department of Earth and Environmental Sciences

Research output: Contribution to journal › Article › peer-review

358 Citations (Scopus)

Abstract

The moment magnitude (M_w) 5.4 Pohang earthquake, the most damaging event in South Kore since instrumental seismic observation began in 1905, occurred beneath the Pohang geothermal power plant in 2017. Geological and geophysical data suggest that the Pohang earthquake was induced by fluid from an enhanced geothermal system (EGS) site, which was injected directly into a near-critically stressed subsurface fault zone. The magnitude of the mainshock makes it the largest known induced earthquake at an EGS site.

Original language	English
Pages (from-to)	1007-1009
Number of pages	3
Journal	Science
Volume	360
Issue number	6392
DOIs	https://doi.org/10.1126/science.aat6081
Publication status	Published - 2018 Jun 1

Bibliographical note

Funding Information:
We thank Representative S. S. Kim of the National Assembly and the Ministry of Trade, Industry and Energy, Republic of Korea, for providing fluid injection data. We are grateful to the Korea Meteorological Administration for providing continuous waveforms used in the study We also thank two anonymous reviewers for their constructive comments. This work was supported by the Nuclear Safety Research Program through the Korea Foundation of Nuclear Safety (KoFONS) using financial resources granted by the Nuclear Safety and Security Commission (NSSC) of the Republic of Korea (no. 1705010).

Publisher Copyright:
2017 © The Authors.

ASJC Scopus subject areas

General

Access to Document

10.1126/science.aat6081

Cite this

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title = "Assessing whether the 2017 Mw5.4 Pohang earthquake in South Korea was an induced event",

abstract = "The moment magnitude (Mw) 5.4 Pohang earthquake, the most damaging event in South Kore since instrumental seismic observation began in 1905, occurred beneath the Pohang geothermal power plant in 2017. Geological and geophysical data suggest that the Pohang earthquake was induced by fluid from an enhanced geothermal system (EGS) site, which was injected directly into a near-critically stressed subsurface fault zone. The magnitude of the mainshock makes it the largest known induced earthquake at an EGS site.",

author = "Kim, {Kwang Hee} and Ree, {Jin Han} and Kim, {Young Hee} and Sungshil Kim and Kang, {Su Young} and Wooseok Seo",

note = "Funding Information: We thank Representative S. S. Kim of the National Assembly and the Ministry of Trade, Industry and Energy, Republic of Korea, for providing fluid injection data. We are grateful to the Korea Meteorological Administration for providing continuous waveforms used in the study We also thank two anonymous reviewers for their constructive comments. This work was supported by the Nuclear Safety Research Program through the Korea Foundation of Nuclear Safety (KoFONS) using financial resources granted by the Nuclear Safety and Security Commission (NSSC) of the Republic of Korea (no. 1705010). Publisher Copyright: 2017 {\textcopyright} The Authors.",

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AU - Seo, Wooseok

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