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

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309 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1007-1009
Number of pages3
Issue number6392
Publication statusPublished - 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


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