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Observation and modeling of the seismic seiches triggered in the Gulf of Corinth (Greece) by the 2011 Mw 9.0 Tohoku earthquake

Canitano, Alexandre; Bernard, P; Allgeyer, Sebastien

Description

The study reports an unusual water level rise in the Gulf of Corinth, central Greece, during the passing of the seismic waves of the remote 2011 Mw 9.0 Tohoku earthquake. The seismic seiches were recorded by a tide-gauge located in the marina of the island of Trizonia, in the western side of the gulf. The cross-analysis between the ground motion and the water level changes shows that seiching was initiated by the arrival of the earlier S-waves and then enhanced by the surface waves. The...[Show more]

dc.contributor.authorCanitano, Alexandre
dc.contributor.authorBernard, P
dc.contributor.authorAllgeyer, Sebastien
dc.date.accessioned2021-08-23T00:40:41Z
dc.identifier.issn0264-3707
dc.identifier.urihttp://hdl.handle.net/1885/244964
dc.description.abstractThe study reports an unusual water level rise in the Gulf of Corinth, central Greece, during the passing of the seismic waves of the remote 2011 Mw 9.0 Tohoku earthquake. The seismic seiches were recorded by a tide-gauge located in the marina of the island of Trizonia, in the western side of the gulf. The cross-analysis between the ground motion and the water level changes shows that seiching was initiated by the arrival of the earlier S-waves and then enhanced by the surface waves. The seiching concerns five domains with periods ranging from minute to about 7 min and with water level changes of a few millimeters to a few centimeters. The main seiching period is about 5–7 min and the related water level has a maximum trough-to-peak amplitude of about 6–8 cm. Numerical simulation of the seismic seiches, based on the shallow water equations, allows us to model reasonably well the amplitude of the seiches for most of the period domains, excepted those for the main seiching period at 7 min, which are underestimated by a factor of about 2–3. The largest bathymetric structures of the gulf to be excited in a seiche mode, with eigenperiods of hundreds of seconds, are a few kilometers in size.
dc.description.sponsorshipThis work has been partially supported by the French ANR project SISCOR. Simulations were performed on the Terrawulf cluster, a computational facility supported through the AuScope initiative. AuScope Ltd. is funded under the National Collaborative Research Infrastructure Strategy (NCRIS), an Australian Commonwealth Government Program.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherElsevier Ltd
dc.rights© 2017 Elsevier Ltd
dc.sourceJournal of Geodynamics
dc.subjectSeismic seiches
dc.subjectBasin oscillations
dc.subjectTohoku earthquake
dc.subjectNumerical modeling
dc.subjectGulf of Corinth (Greece)
dc.titleObservation and modeling of the seismic seiches triggered in the Gulf of Corinth (Greece) by the 2011 Mw 9.0 Tohoku earthquake
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume109
dc.date.issued2017
local.identifier.absfor040407 - Seismology and Seismic Exploration
local.identifier.absfor049999 - Earth Sciences not elsewhere classified
local.identifier.ariespublicationu4351680xPUB225
local.publisher.urlhttps://www.elsevier.com/en-au
local.type.statusPublished Version
local.contributor.affiliationCanitano, Alexandre, Academia Sinica
local.contributor.affiliationBernard, P, Institut de Physique du Globe de Paris
local.contributor.affiliationAllgeyer, Sebastien, College of Science, ANU
local.description.embargo2099-12-31
local.bibliographicCitation.startpage24
local.bibliographicCitation.lastpage31
local.identifier.doi10.1016/j.jog.2017.06.001
dc.date.updated2020-11-23T10:53:40Z
local.identifier.scopusID2-s2.0-85030450778
local.identifier.thomsonID000408784500003
CollectionsANU Research Publications

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