The question whether each megathrust earthquake necessarily and instantaneously triggers submarine mass-movement has been intensively discussed in the wake of the giant earthquakes that occurred over the last decade. Whereas the 2011 Tohoku-Oki earthquake (Japan) caused failure of parts of the lowermost continental slope, no similar evidence was found after the 2010 Maule earthquake (Central Chile).<\/p>\n
G&G Marie Curie Research Fellow Jacob Geersen<\/a> has been involved in\u00a0analysing the size-frequency relationship of submarine landslides on the Middle America (MA) and the Central Chile (CC) margin and estimate the approximate recurrence rates for slides of a given size. Although forearc tectonics differ substantially (subduction erosion off MA versus frontal accretion off CC) the size-frequency relationship of submarine landslides for both margins is remarkably similar. Considering a recurrence interval between 100-1000 years for megathrust earthquakes our results indicate that it takes at least 20 to 200 plate boundary earthquakes to set off a medium sized (>10 km\u00b2) or larger slide.<\/p>\n Read the paper here<\/a>. The question whether each megathrust earthquake necessarily and instantaneously triggers submarine mass-movement has been intensively discussed in the wake of the giant earthquakes that occurred over the last decade. Whereas the 2011 Tohoku-Oki earthquake (Japan) caused failure of parts of the lowermost continental slope, no similar evidence was found after the 2010 Maule earthquake (Central… Read More Megathrust earthquakes and submarine landslides<\/span><\/a><\/p>\n","protected":false},"author":93323,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[493988,4217,517518,328889],"tags":[494092,494064,493979],"class_list":["post-850","post","type-post","status-publish","format-standard","hentry","category-blog-roll","category-news","category-publications","category-research-projects","tag-earthquakes","tag-submarine-landslide","tag-tectonics"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts\/850","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/users\/93323"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/comments?post=850"}],"version-history":[{"count":2,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts\/850\/revisions"}],"predecessor-version":[{"id":852,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/posts\/850\/revisions\/852"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/media?parent=850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/categories?post=850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/ggblog\/wp-json\/wp\/v2\/tags?post=850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"