{"@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/1361137045955878016.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/2015gl064835"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2015GL064835"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2015GL064835"}}],"dc:title":[{"@value":"Improved detection of preeruptive seismic velocity drops at the Piton de La Fournaise volcano"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>The unexpected 2014 and 2015 Ontake (Japan) and Calbuco (Chile) eruptions proved that improving volcanic eruption prediction is still a great challenge. Decreases of seismic velocities of the Piton de la Fournaise volcano inferred from seismic noise correlations have been shown to precede eruptions. However, seismic velocities are strongly influenced by rainfall and subsequent pore pressure perturbations. Here we increase the detection of precursory seismic velocity changes to an eruption by removing the effects of pore pressure changes. During 2011–2013, the volcano exhibits a low eruptive activity during which we observe seismic velocity variations well correlated with rainfall episodes. We estimated the transfer function between fluid pressure and seismic velocity changes. We use these results to correct seismic velocity change time series for pore pressure changes, due to rainfall and found a preeruptive velocity drop (0.15%) associated with the 21 June 2014 eruption that was undetected before correction.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137045955878144","@type":"Researcher","foaf:name":[{"@value":"Diane Rivet"}],"jpcoar:affiliationName":[{"@value":"Géoazur Université Nice Sophia Antipolis, Campus Azur  Sophia‐Antipolis France"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045955878145","@type":"Researcher","foaf:name":[{"@value":"Florent Brenguier"}],"jpcoar:affiliationName":[{"@value":"Institut des Sciences de la Terre Université Joseph Fourier  Grenoble France"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137045955878016","@type":"Researcher","foaf:name":[{"@value":"Frédéric Cappa"}],"jpcoar:affiliationName":[{"@value":"Géoazur Université Nice Sophia Antipolis, Campus Azur  Sophia‐Antipolis France"},{"@value":"Institut Universitaire de France  Paris France"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00948276"},{"@type":"EISSN","@value":"19448007"}],"prism:publicationName":[{"@value":"Geophysical Research Letters"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2015-08-15","prism:volume":"42","prism:number":"15","prism:startingPage":"6332","prism:endingPage":"6339"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2015GL064835"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2015GL064835"}],"createdAt":"2015-07-29","modifiedAt":"2023-09-02","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360013168829986432","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Pore Pressure Analysis for Distinguishing Earthquakes Induced by CO2 Injection from Natural Earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360025429428414592","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Estimation of seismometer clock time offsets using Kalman Filter towards accurate seismic velocity change"}]},{"@id":"https://cir.nii.ac.jp/crid/1360298757432558720","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismic Scattering Property Changes Correlate With Ground Deformation at Suwanosejima Volcano, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567183245658880","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Sensitivity of Seismic Velocity Changes to the Tidal Strain at Different Lapse Times: Data Analyses of a Small Seismic Array at Izu‐Oshima Volcano"}]},{"@id":"https://cir.nii.ac.jp/crid/2050307417121629824","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Spatial and temporal influence of rainfall on crustal pore pressure based on seismic velocity monitoring"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/2015gl064835"},{"@type":"CROSSREF","@value":"10.3390/su12229723_references_DOI_NpI2slXoBFN3cCQW0jclsBkm2gy"},{"@type":"CROSSREF","@value":"10.1093/gji/ggae322_references_DOI_NpI2slXoBFN3cCQW0jclsBkm2gy"},{"@type":"CROSSREF","@value":"10.1186/s40623-020-01311-1_references_DOI_NpI2slXoBFN3cCQW0jclsBkm2gy"},{"@type":"CROSSREF","@value":"10.1029/2022jb024352_references_DOI_4KqLzUFTEgetMF3RoT0OuiJRSLH"},{"@type":"CROSSREF","@value":"10.1029/2018jb016235_references_DOI_NpI2slXoBFN3cCQW0jclsBkm2gy"}]}