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dc.contributor.authorZhao, Y
dc.contributor.authorGrujic, D
dc.contributor.authorBaruah, S
dc.contributor.authorDrukpa, D
dc.contributor.authorElkadi, J
dc.contributor.authorHetényi, G
dc.contributor.authorKing, GE
dc.contributor.authorMildon, ZK
dc.contributor.authorNepal, N
dc.contributor.authorWelte, C
dc.date.accessioned2021-11-09T18:20:24Z
dc.date.available2021-11-09T18:20:24Z
dc.date.issued2021-08-05
dc.identifier.issn2296-6463
dc.identifier.issn2296-6463
dc.identifier.otherARTN 689457
dc.identifier.urihttp://hdl.handle.net/10026.1/18289
dc.description.abstract

<jats:p>The 1714 Bhutan earthquake was one of the largest in the Himalaya in the last millennium. We show that the surface rupture caused by this earthquake extended further to the east than previously known, it was at least 175 km long, with slip exceeding 11 m at our study site. The age of the surface rupture was constrained by a combination of radiocarbon and traditional optically stimulated luminescence dating of affected river sediments. Computations using empirical scaling relationships, fitting historical observations and paleoseismic data, yielded a plausible magnitude of Mw 8.1 ± 0.4 and placed the hypocentre of the 1714 Bhutan earthquake on the flat segment of the Main Himalayan Thrust (MHT), the basal décollement of the Himalayan orogen. Calculations of Coulomb stress transfer indicate that great earthquakes along the leading part of the MHT would cause surface rupture. In contrast, distal earthquakes may not immediately trigger surface rupture, although they would increase the stresses in the leading part of the MHT, facilitating future surface-rupturing earthquakes. Frontal earthquakes would also transfer stress into the modern foreland basin facilitating southward propagation of the MHT as a blind basal décollement. In conclusion, studies of surface-rupturing events alone likely underestimate the seismic slip along the Himalayan megathrust.</jats:p>

dc.format.extent689457-
dc.language.isoen
dc.publisherFrontiers Media SA
dc.subjectsurface rupture
dc.subjectstress transfer
dc.subjectHimalaya
dc.subjectoptically stimulated luminescence dating
dc.subjectradiocarbon dating
dc.titlePaleoseismological Findings at a New Trench Indicate the 1714 M8.1 Earthquake Ruptured the Main Frontal Thrust Over all the Bhutan Himalaya
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000687960300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.volume9
plymouth.publisher-urlhttp://dx.doi.org/10.3389/feart.2021.689457
plymouth.publication-statusPublished online
plymouth.journalFrontiers in Earth Science
dc.identifier.doi10.3389/feart.2021.689457
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dcterms.dateAccepted2021-07-05
dc.rights.embargodate2021-11-13
dc.identifier.eissn2296-6463
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.3389/feart.2021.689457
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2021-08-05
rioxxterms.typeJournal Article/Review


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