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

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dc.contributor.authorTerakawa, Toshiko-
dc.contributor.authorSeo, Wooseok-
dc.contributor.authorKim, Kwang-Hee-
dc.contributor.authorRee, Jin-Han-
dc.date.accessioned2021-08-30T23:58:19Z-
dc.date.available2021-08-30T23:58:19Z-
dc.date.created2021-06-19-
dc.date.issued2020-05-16-
dc.identifier.issn0094-8276-
dc.identifier.urihttps://scholar.korea.ac.kr/handle/2021.sw.korea/55676-
dc.description.abstractWe 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.-
dc.languageEnglish-
dc.language.isoen-
dc.publisherAMER GEOPHYSICAL UNION-
dc.subjectBAYESIAN INFORMATION CRITERION-
dc.subjectENHANCED GEOTHERMAL SYSTEMS-
dc.subjectDATA INVERSION-
dc.subjectTECTONIC STRESS-
dc.subjectFRICTION-
dc.subjectPERMEABILITY-
dc.subjectSEISMICITY-
dc.subjectFAULTS-
dc.titleThree-Dimensional Pore Fluid Pressures in Source Region of 2017 Pohang Earthquake Inferred From Earthquake Focal Mechanisms-
dc.typeArticle-
dc.contributor.affiliatedAuthorRee, Jin-Han-
dc.identifier.doi10.1029/2019GL085964-
dc.identifier.scopusid2-s2.0-85084454961-
dc.identifier.wosid000536639500001-
dc.identifier.bibliographicCitationGEOPHYSICAL RESEARCH LETTERS, v.47, no.9-
dc.relation.isPartOfGEOPHYSICAL RESEARCH LETTERS-
dc.citation.titleGEOPHYSICAL RESEARCH LETTERS-
dc.citation.volume47-
dc.citation.number9-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaGeology-
dc.relation.journalWebOfScienceCategoryGeosciences, Multidisciplinary-
dc.subject.keywordPlusBAYESIAN INFORMATION CRITERION-
dc.subject.keywordPlusENHANCED GEOTHERMAL SYSTEMS-
dc.subject.keywordPlusDATA INVERSION-
dc.subject.keywordPlusTECTONIC STRESS-
dc.subject.keywordPlusFRICTION-
dc.subject.keywordPlusPERMEABILITY-
dc.subject.keywordPlusSEISMICITY-
dc.subject.keywordPlusFAULTS-
dc.subject.keywordAuthorPohang earthquake-
dc.subject.keywordAuthorpore fluid pressure-
dc.subject.keywordAuthorstress-
dc.subject.keywordAuthorfriction coefficient-
dc.subject.keywordAuthorearthquake focal mechanism-
dc.subject.keywordAuthorinversion analysis-
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