Surface Deformations and Rupture Processes Associated with the 2017 Mw 5.4 Pohang, Korea, Earthquake

• DOI: 10.1785/0120180167
• Publication Date: 2019-02-12T15:15:22Z
• Authors: Jin‐Hyuck Choi; Kyoungtae Ko; Yong Sik Gihm; Chang Soo Cho; Hoonyol Lee; Seok Goo Song; Eun‐Seok Bang; Hong‐Jin Lee; Han‐Kyung Bae; Sung Won Kim; Sung‐Ja Choi; Sung Soon Lee; Seung Ryeol Lee
• Keywords: Karush–Kuhn–Tucker conditions

Research Article| February 12, 2019 Surface Deformations and Rupture Processes Associated with the 2017 Mw 5.4 Pohang, Korea, Earthquake Jin‐Hyuck Choi; Choi aGeology Division, Korea Institute for Geosciences Mineral Resources, Daejeon 34132, Republic of [e-mail], [e-mail], [e-mail], [e-mail], [e-mail], [e-mail], [e-mail], [e-mail], [e-mail] Search other works by this author on: GSW Google Scholar Kyoungtae Ko; Ko Yong Sik Gihm; Gihm Chang Soo Cho; Cho Hoonyol Lee; Lee bDepartment Geophysics, Kangwon National University, Chuncheon 24341, [e-mail] Seok Goo Song; Song Eun‐Seok Bang; Bang cMineral Resources [e-mail] Hong‐Jin dGeoscience Platform [e-mail], [e-mail] Han‐Kyung Bae; Bae Sung Won Kim; Kim Sung‐Ja Soon Seung Ryeol Author Article Information Publisher: Seismological Society America First Online: 12 Feb Online Issn: 1943-3573 Print 0037-1106 © Bulletin (2019) 109 (2): 756–769. https://doi.org/10.1785/0120180167 history Cite View This Citation Add to Manager Share Icon Facebook Twitter LinkedIn MailTo Tools Get Permissions Site Choi, Ko, Gihm, Cho, Lee, Song, Bang, Bae, Kim, Earthquake. 2019;; doi: Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Dropdown Menu input auto suggest filter your All ContentBy SocietyBulletin Advanced Abstract In November 2017, an earthquake a shallow (⁠∼4 km⁠) hypocenter occurred in Pohang area, one most developing industrial cities South Korea. shock resulted costliest damages modern Korean history. Immediately after event, it was not easy recognize source fault due lack clear coseismic surface ruptures but also absence previously mapped active faults around epicenter. Based on satellite‐ unmanned aerial vehicle (UAV)‐derived images, ground resolution higher than 0.5 m, field observations, we investigate deformation such as sand blows failures associated well bedrock exposures epicentral area. To better constrain mechanism, combine both moment tensors aftershock relocations displacements estimated Interferometric Synthetic Aperture Radar (InSAR). Our results indicate that (1) various types distributions secondary were controlled blind oblique‐slip rupture; characterized right‐lateral reverse‐slip components, reactivated pre‐existing segmented normal‐fault system, (2) local conditions could trigger or amplify deformations their related damage. study highlights importance mapping extent trace improving seismic hazard assessments Peninsula. You do have access content, please speak institutional administrator if you feel should access.