{"@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/1362825895354763904.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/s0031-9201(00)00177-1"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0031920100001771?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0031920100001771?httpAccept=text/plain"}},{"identifier":{"@type":"NAID","@value":"30003874919"}}],"dc:title":[{"@value":"Coseismic piezoelectric effects due to a dislocation"}],"description":[{"notation":[{"@value":"Abstract   Piezoelectricity is a property that arises from the crystal anisotropy of substances. Piezoelectric substances generate electromagnetic (EM) field variations related to the temporal variations of the stress field. Since piezoelectric substances are abundant in the earth’s crust, the presence of a coseismic piezoelectric EM phenomenon in the real earth is a reasonable expectation.  This paper examines the fundamental characteristics and detectability of coseismic EM signals relating to the piezoelectricity of crustal substances. Combining the fundamental equations of EM fields and the motion of an elastic medium, we derived analytical expressions of EM fields related to the variation of the stress field caused by slip of a point dislocation in a uniform whole space filled with an elastic, conductive, and piezoelectric substance.  Numerical calculations, with physical parameters permissible for crustal rocks and a unit step function substituted as the source time function, show that the initial phase of EM signals, amounting to 1 nT and 10 2  mV/km, are observable at a 10 km distance from the slip about 0.01 s after slip occurs, when the seismic moment magnitude is around 7–8. This result suggests difficulty in detecting such piezoelectric EM signals related to earthquakes. However, it is shown that if the observations are succeeded due to a dense observation network installed around the epicenter, information on piezoelectric property relating to the direction of the symmetry axis in the deep seismogeneic zone can be obtained."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380568471862836360","@type":"Researcher","foaf:name":[{"@value":"T. Ogawa"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895354763905","@type":"Researcher","foaf:name":[{"@value":"H. Utada"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00319201"}],"prism:publicationName":[{"@value":"Physics of the Earth and Planetary Interiors"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2000-10","prism:volume":"121","prism:number":"3-4","prism:startingPage":"273","prism:endingPage":"288"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0031920100001771?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0031920100001771?httpAccept=text/plain"}],"createdAt":"2002-07-25","modifiedAt":"2023-04-05","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050003824816585472","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Temporal variations in magnetic signals generated by the piezomagnetic effect for dislocation sources in a uniform medium"}]},{"@id":"https://cir.nii.ac.jp/crid/1050564285764177152","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Estimation of temporal variations in the magnetic field arising from the motional induction that accompanies seismic waves at a large distance from the epicentre"}]},{"@id":"https://cir.nii.ac.jp/crid/1390006750774403456","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Electromagnetic Variations Associated with Seismic Waves"},{"@language":"ja","@value":"地震波に伴う電磁場変動"},{"@language":"ja-Kana","@value":"ジシンハ ニ トモナウ デンジバ ヘンドウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679222239232","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Solid State Recycling of Recyclable Aluminum Wastes with In-Process Microstructure Control"}]},{"@id":"https://cir.nii.ac.jp/crid/1390564238076769024","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"表現定理とグリーン関数 (3)"},{"@language":"en","@value":"Representation Theorem and Green’s Function (3)"},{"@value":"表現定理とグリーン関数(3)全無限グリーン関数の2階微分を用いた点震源が引き起こす歪み・応力・密度摂動場の表現"},{"@language":"ja-Kana","@value":"ヒョウゲン テイリ ト グリーン カンスウ(3)ゼン ムゲン グリーン カンスウ ノ 2カイ ビブン オ モチイタ テン シンゲン ガ ヒキオコス ヒズミ ・ オウリョク ・ ミツドセツドウジョウ ノ ヒョウゲン"},{"@value":"Representation theorem and Green’s function (3) – strain, stress, and density perturbation fields due to a point source using 2nd derivative of Green’s function in an unbounded homogeneous isotropic elastic medium – (in Japanese"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892094267776","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Numerical simulations to explain the coseismic electromagnetic signals : a case study for a M5.4 aftershock of the 2016 Kumamoto earthquake"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/s0031-9201(00)00177-1"},{"@type":"CIA","@value":"30003874919"},{"@type":"OPENAIRE","@value":"doi_dedup___::2fc18656f0d9dcf44d708f67a3bccb0c"},{"@type":"CROSSREF","@value":"10.1111/j.1365-246x.2012.05586.x_references_DOI_YTaRzX5FpcK6VKri9ksfhtrIIzj"},{"@type":"CROSSREF","@value":"10.4294/zisin.2020-12_references_DOI_YTaRzX5FpcK6VKri9ksfhtrIIzj"},{"@type":"CROSSREF","@value":"10.4294/zisin.2017-20_references_DOI_YTaRzX5FpcK6VKri9ksfhtrIIzj"},{"@type":"CROSSREF","@value":"10.1186/s40623-019-1122-7_references_DOI_YTaRzX5FpcK6VKri9ksfhtrIIzj"},{"@type":"CROSSREF","@value":"10.1093/gji/ggw125_references_DOI_YTaRzX5FpcK6VKri9ksfhtrIIzj"}]}