Large, deepwater slope failures: Implications for landslide-generated tsunamis

Abstract

Research Article| October 01, 2012 Large, deepwater slope failures: Implications for landslide-generated tsunamis Claudio Lo Iacono; Claudio Lo Iacono * 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain2National Oceanography Centre, Southampton SO14 3ZH, UK *E-mails: loiacono@utm.csic.es; cllo@noc.ac.uk. Search for other works by this author on: GSW Google Scholar Eulàlia Gràcia; Eulàlia Gràcia 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain Search for other works by this author on: GSW Google Scholar Filippo Zaniboni; Filippo Zaniboni 3Universitá di Bologna, Departimento di Fisica e Astronomia, 40127 Bologna, Italy Search for other works by this author on: GSW Google Scholar Gianluca Pagnoni; Gianluca Pagnoni 3Universitá di Bologna, Departimento di Fisica e Astronomia, 40127 Bologna, Italy Search for other works by this author on: GSW Google Scholar Stefano Tinti; Stefano Tinti 3Universitá di Bologna, Departimento di Fisica e Astronomia, 40127 Bologna, Italy Search for other works by this author on: GSW Google Scholar Rafael Bartolomé; Rafael Bartolomé 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain Search for other works by this author on: GSW Google Scholar Douglas G. Masson; Douglas G. Masson 2National Oceanography Centre, Southampton SO14 3ZH, UK Search for other works by this author on: GSW Google Scholar Russell B. Wynn; Russell B. Wynn 2National Oceanography Centre, Southampton SO14 3ZH, UK Search for other works by this author on: GSW Google Scholar Nuno Lourenço; Nuno Lourenço 4Estrutura de Missão para a Extensão da Plataforma Continental, P-2770047 Paco De Arcos, Portugal Search for other works by this author on: GSW Google Scholar Manuel Pinto de Abreu; Manuel Pinto de Abreu 4Estrutura de Missão para a Extensão da Plataforma Continental, P-2770047 Paco De Arcos, Portugal Search for other works by this author on: GSW Google Scholar Juan José Dañobeitia; Juan José Dañobeitia 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain Search for other works by this author on: GSW Google Scholar Nevio Zitellini Nevio Zitellini 5Istituto di Scienze Marine, CNR, 40129 Bologna, Italy Search for other works by this author on: GSW Google Scholar Author and Article Information Claudio Lo Iacono * 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain2National Oceanography Centre, Southampton SO14 3ZH, UK Eulàlia Gràcia 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain Filippo Zaniboni 3Universitá di Bologna, Departimento di Fisica e Astronomia, 40127 Bologna, Italy Gianluca Pagnoni 3Universitá di Bologna, Departimento di Fisica e Astronomia, 40127 Bologna, Italy Stefano Tinti 3Universitá di Bologna, Departimento di Fisica e Astronomia, 40127 Bologna, Italy Rafael Bartolomé 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain Douglas G. Masson 2National Oceanography Centre, Southampton SO14 3ZH, UK Russell B. Wynn 2National Oceanography Centre, Southampton SO14 3ZH, UK Nuno Lourenço 4Estrutura de Missão para a Extensão da Plataforma Continental, P-2770047 Paco De Arcos, Portugal Manuel Pinto de Abreu 4Estrutura de Missão para a Extensão da Plataforma Continental, P-2770047 Paco De Arcos, Portugal Juan José Dañobeitia 1Unidad de Tecnología Marina, CSIC, 08003 Barcelona, Spain Nevio Zitellini 5Istituto di Scienze Marine, CNR, 40129 Bologna, Italy *E-mails: loiacono@utm.csic.es; cllo@noc.ac.uk. Publisher: Geological Society of America Received: 22 Mar 2012 Accepted: 23 Apr 2012 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2012 Geological Society of America Geology (2012) 40 (10): 931–934. https://doi.org/10.1130/G33446.1 Article history Received: 22 Mar 2012 Accepted: 23 Apr 2012 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Claudio Lo Iacono, Eulàlia Gràcia, Filippo Zaniboni, Gianluca Pagnoni, Stefano Tinti, Rafael Bartolomé, Douglas G. Masson, Russell B. Wynn, Nuno Lourenço, Manuel Pinto de Abreu, Juan José Dañobeitia, Nevio Zitellini; Large, deepwater slope failures: Implications for landslide-generated tsunamis. Geology 2012;; 40 (10): 931–934. doi: https://doi.org/10.1130/G33446.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Deepwater landslides are often underestimated as potential tsunami triggers. The North Gorringe avalanche (NGA) is a large (∼80 km3 and 35 km runout) newly discovered and deepwater (2900 m to 5100 m depth) mass failure located at the northern flank of Gorringe Bank on the southwest Iberian margin. Steep slopes and pervasive fracturing are suggested as the main preconditioning factors for the NGA, while an earthquake is the most likely trigger mechanism. Near-field tsunami simulations show that a mass failure similar to the NGA could generate a wave >15 m high that would hit the south Portuguese coasts in ∼30 min. This suggests that deepwater landslides require more attention in geo-hazard assessment models of southern Europe, as well as, at a global scale, in seismically active margins. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.