{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361981470053398144.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2009jb006398"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2009JB006398"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2009JB006398"}}],"dc:title":[{"@value":"Modeling crustal deformation and rupture processes related to upwelling of deep CO<sub>2</sub>‐rich fluids during the 1965–1967 Matsushiro earthquake swarm in Japan"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>In Matsushiro, central Japan, a series of more than 700,000 earthquakes occurred over a 2‐year period (1965–1967) associated with a strike‐slip faulting sequence. This swarm of earthquakes resulted in ground surface deformations, cracking of the topsoil, and enhanced spring outflows with changes in chemical compositions, as well as carbon dioxide (CO<jats:sub>2</jats:sub>) degassing. Previous investigations of the Matsushiro earthquake swarm have suggested that migration of underground water and/or magma may have had a strong influence on the swarm activity. In this study, employing coupled multiphase flow and geomechanical modeling, we show that observed crustal deformations and seismicity could have been driven by upwelling of deep CO<jats:sub>2</jats:sub>‐rich fluids around the intersection of two fault zones: the regional east Nagano earthquake fault and the conjugate Matsushiro fault. We show that the observed spatial evolution of seismicity along the two faults and magnitudes surface uplift are convincingly explained by a few megapascals of pressurization from the upwelling fluid within the critically stressed crust, a crust under a strike‐slip stress regime near the frictional strength limit. Our analysis indicates that the most important cause for triggering of seismicity during the Matsushiro swarm was the fluid pressurization with the associated reduction in effective stress and strength in fault segments that were initially near critically stressed for shear failure. Moreover, our analysis indicates that a 2‐order‐of‐magnitude permeability enhancement in ruptured fault segments may be necessary to match the observed time evolution of surface uplift. We conclude that our hydromechanical modeling study of the Matsushiro earthquake swarm shows a clear connection between earthquake rupture, deformation, stress, and permeability changes, as well as large‐scale fluid flow related to degassing of CO<jats:sub>2</jats:sub> in the shallow seismogenic crust. Thus our study provides further evidence of the important role of deep fluid sources in earthquake fault dynamics and surface deformations.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381981470053398145","@type":"Researcher","foaf:name":[{"@value":"Frédéric Cappa"}],"jpcoar:affiliationName":[{"@value":"GeoAzur, UMR6526, Côte d'Azur Observatory University of Nice Sophia‐Antipolis  Sophia‐Antipolis France"},{"@value":"Earth Sciences Division Lawrence Berkeley National Laboratory  Berkeley California USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470053398144","@type":"Researcher","foaf:name":[{"@value":"Jonny Rutqvist"}],"jpcoar:affiliationName":[{"@value":"Earth Sciences Division Lawrence Berkeley National Laboratory  Berkeley California USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381981470053398146","@type":"Researcher","foaf:name":[{"@value":"Koji Yamamoto"}],"jpcoar:affiliationName":[{"@value":"Mizuho Information and Research Institute  Tokyo Japan"}]}],"contributor":[{"@id":"https://cir.nii.ac.jp/crid/1890302168187515911","@type":"Researcher","foaf:name":[{"@value":"Géoazur (GEOAZUR 6526) ; Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur ; Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS)"}]},{"@id":"https://cir.nii.ac.jp/crid/1890302168187515908","@type":"Researcher","foaf:name":[{"@value":"Lawrence Berkeley National Laboratory [Berkeley] (LBNL)"}]},{"@id":"https://cir.nii.ac.jp/crid/1890302168187515904","@type":"Researcher","foaf:name":[{"@value":"Mizuho Information and Research Institute ; Mizuho Information and Research Institute"}]},{"@id":"https://cir.nii.ac.jp/crid/1890302168187515909","@type":"Researcher","foaf:name":[{"@value":"Géoazur (GEOAZUR 6526) ; Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (... - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur ; Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)"}]},{"@id":"https://cir.nii.ac.jp/crid/1891992116245862787","@type":"Researcher","foaf:name":[{"@value":"Géoazur, Publications"}]},{"@id":"https://cir.nii.ac.jp/crid/1890302168187515907","@type":"Researcher","foaf:name":[{"@value":"Géoazur (GEOAZUR 6526) ; Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur ; Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)"}]},{"@id":"https://cir.nii.ac.jp/crid/1891992116245862789","@type":"Researcher","foaf:name":[{"@value":"Géoazur (GEOAZUR 6526)"}]},{"@id":"https://cir.nii.ac.jp/crid/1891992116245862788","@type":"Researcher","foaf:name":[{"@value":"Lawrence Berkeley National Laboratory Berkeley (LBNL)"}]},{"@id":"https://cir.nii.ac.jp/crid/1891992116245862785","@type":"Researcher","foaf:name":[{"@value":"Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur"}]},{"@id":"https://cir.nii.ac.jp/crid/1891992116245862786","@type":"Researcher","foaf:name":[{"@value":"Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)"}]},{"@id":"https://cir.nii.ac.jp/crid/1891992116245862784","@type":"Researcher","foaf:name":[{"@value":"Mizuho Information and Research Institute"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Solid Earth"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2009-10","prism:volume":"114","prism:number":"B10","prism:startingPage":"B10304"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2009JB006398"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2009JB006398"}],"createdAt":"2009-10-01","modifiedAt":"2023-10-12","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=550","dc:title":"550"},{"@id":"https://cir.nii.ac.jp/all?q=%5BSDU.STU%5D%20Sciences%20of%20the%20Universe%20%5Bphysics%5D/Earth%20Sciences","dc:title":"[SDU.STU] Sciences of the Universe [physics]/Earth Sciences"},{"@id":"https://cir.nii.ac.jp/all?q=%5BSDU.STU%5DSciences%20of%20the%20Universe%20%5Bphysics%5D/Earth%20Sciences","dc:title":"[SDU.STU]Sciences of the Universe [physics]/Earth Sciences"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360017279876131072","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Long‐Living Earthquake Swarm and Intermittent Seismicity in the Northeastern Tip of the Noto Peninsula, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679230611584","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Evolution of Permeability during Fracturing Processes in Rocks under Conditions of Geological Storage of CO<sub>2</sub>"},{"@value":"Evolution of Permeability during Fracturing Processes in Rocks under Conditions of Geological Storage of CO₂"}]},{"@id":"https://cir.nii.ac.jp/crid/1390301529917553024","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Origin of spring waters in the Matsushiro area: Implications for the 1965–1967 earthquake swarm and subsequent “water eruption”"}]},{"@id":"https://cir.nii.ac.jp/crid/2050307417127743744","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Origins and pathways of deeply derived carbon and fluids observed in hot spring waters from non-active volcanic fields, western Kumamoto, Japan"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2009jb006398"},{"@type":"OPENAIRE","@value":"doi_dedup___::426cfb599ab559098dd595ac9d9a293f"},{"@type":"CROSSREF","@value":"10.1029/2022gl102670_references_DOI_DGPfwfFVZcAr38DNi7eXvOaEgFh"},{"@type":"CROSSREF","@value":"10.2343/geochemj.gj24015_references_DOI_DGPfwfFVZcAr38DNi7eXvOaEgFh"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01478-1_references_DOI_DGPfwfFVZcAr38DNi7eXvOaEgFh"},{"@type":"CROSSREF","@value":"10.2320/matertrans.m-m2015802_references_DOI_DGPfwfFVZcAr38DNi7eXvOaEgFh"}]}