Repository logo
 
Publication

Megatsunamis Induced by Volcanic Landslides in the Canary Islands: Age of the Tsunami Deposits and Source Landslides

2021-08-12Journal article Open access
Simple item page
dc.contributor.authorFerrer, Mercedes
dc.contributor.authorGonzález de Vallejo, Luis
dc.contributor.authorMadeira, José
dc.contributor.authorAndrade, César
dc.contributor.authorGarcía-Davalillo, Juan C.
dc.contributor.authorFreitas, Maria Da Conceição
dc.contributor.authorMeco, Joaquín
dc.contributor.authorBetancort, Juan F.
dc.contributor.authorTorres, Trinidad
dc.contributor.authorOrtiz, José Eugenio
dc.date.accessioned2022-02-23T14:56:37Z
dc.date.available2022-02-23T14:56:37Z
dc.date.issued2021-08-12
dc.description.abstractEvidence for frequent, large landslides on the flanks of the volcanic edifices forming the Canary Islands include outstanding landslide scars and their correlative submarine and subaerial rock and debris avalanche deposits. These landslides involved volumes ranging from tens to hundreds of km3. The sudden entry of large volumes of rock masses in the sea may have triggered tsunamis capable of affecting the source and neighboring islands, with the resulting huge waves dragging coastal and seabed materials and fauna and redepositing them inland. Here, we present new geological evidence and geochronological data of at least five megatsunamis in Tenerife, Lanzarote, and Gran Canaria, triggered by island flank megalandslides, and occasionally explosive eruptions, during the last 1 million years. The exceptional preservation of the megatsunami deposits and the large area they cover, particularly in Tenerife, provide fundamental data on the number of tsunami events and run-ups, and allow proposals on the sources and age of the tsunamis. Tsunami run-up heights up to 290 m above coeval sea level, some of the highest known on Earth in recent geological times, were estimated based on sedimentological, geomorphological, paleontological, and geochronological data. The research results made it possible to estimate the recurrence of tsunamis in the archipelago during the last hundreds of thousands of years, and to establish relationships between tsunami deposits and the probable triggering island flank landslides.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/geohazards2030013pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/51470
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationCICYT—project GRANDETEN II n◦ CGL2008-01423 Ministry of Science of Spainpt_PT
dc.relationUIDB/50019/2020 FCTpt_PT
dc.relationGeological Survey of Spain (IGME)pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectNATURAL SCIENCESpt_PT
dc.subjectEarth sciencespt_PT
dc.titleMegatsunamis Induced by Volcanic Landslides in the Canary Islands: Age of the Tsunami Deposits and Source Landslidespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage256pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage228pt_PT
oaire.citation.titleGeoHazardspt_PT
oaire.citation.volume2pt_PT
person.familyNamede Oliveira Madeira
person.familyNameCanêlhas Freire de Andrade
person.familyNamePombo de Freitas
person.givenNameJosé Eduardo
person.givenNameCesar Augusto
person.givenNameMaria da Conceição
person.identifierE-4762-2010
person.identifier.ciencia-id191B-3EB0-B665
person.identifier.ciencia-idD11D-F54C-A621
person.identifier.ciencia-id8211-CB3E-AA6E
person.identifier.orcid0000-0003-4729-8994
person.identifier.orcid0000-0002-8451-9437
person.identifier.orcid0000-0002-2616-6637
person.identifier.scopus-author-id33967553300
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication052a1f1d-83d2-4c82-ba58-c4a82537620c
relation.isAuthorOfPublication07389ddf-dc4b-4c28-9202-c2d646d041e3
relation.isAuthorOfPublication88103b2b-b8c6-4811-bc26-6a23d747be22
relation.isAuthorOfPublication.latestForDiscovery07389ddf-dc4b-4c28-9202-c2d646d041e3

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Ferrer et al_tsunamis Canarias_geohazards-02-2021.pdf
Size:
9.67 MB
Format:
Adobe Portable Document Format
Download

Collections

IDL - Artigos em Revistas Internacionais