{"id":5002,"date":"2012-07-20T08:36:42","date_gmt":"2012-07-20T08:36:42","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/?p=5002"},"modified":"2012-07-20T08:38:22","modified_gmt":"2012-07-20T08:38:22","slug":"friday-fun-so-how-does-a-landslide-generate-a-tsunami-an-amazing-video-of-a-glacier","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2012\/07\/20\/friday-fun-so-how-does-a-landslide-generate-a-tsunami-an-amazing-video-of-a-glacier\/","title":{"rendered":"Friday fun: So how does a landslide generate a tsunami? An amazing video of a collapsing glacier"},"content":{"rendered":"<p>Landslides are a key mechanism through which localised tsunamis can be generated, but it is very difficult to actually visualise this process.\u00a0<a href=\"http:\/\/www.youtube.com\/watch?v=HB3K5HY5RnE\"> An amazing video has just appeared on Youtube that shows this process very clearly<\/a>.\u00a0 The video is actually of a collapsing glacier in Greenland, shot from a boat.\u00a0 The event occurred at Ilulissat:<\/p>\n<p><iframe loading=\"lazy\" title=\"Iceberg tsunami gone wild!\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/HB3K5HY5RnE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Obviously the main interest here is in the generation of the waves. The speed and violence of the waves is quite awe-inspiring given that the collapse is not huge.<\/p>\n<p>However, there is an additional aspect of this that is interesting.\u00a0 This is the way in which the glacier behaved prior to the collapse.\u00a0 Note that the video shows that the mass was generating small failures in the seconds leading up to the collapse, and that the rate of these increased just before the final failure.\u00a0 An example is highlighted below:<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/blogs.agu.org\/landslideblog\/2012\/07\/20\/friday-fun-so-how-does-a-landslide-generate-a-tsunami-an-amazing-video-of-a-glacier\/12_07-glacier-1\/\" rel=\"attachment wp-att-5003\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5003\" title=\"12_07 glacier 1\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2012\/07\/12_07-glacier-1.png\" alt=\"\" width=\"477\" height=\"350\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2012\/07\/12_07-glacier-1.png 477w, https:\/\/blogs.agu.org\/landslideblog\/files\/2012\/07\/12_07-glacier-1-300x220.png 300w\" sizes=\"auto, (max-width: 477px) 100vw, 477px\" \/><\/a><\/p>\n<p>Similar behaviour is also seen for rockfalls and landslides, and is an indication that the creep rate is increasing, causing the mass to deform, which in turn pops off these little failures.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>A remarkable new video of a collapsing glacier from Greenland elegantly illustrates the processes through which landslides generate tsunamis<!-- AddThis Advanced Settings generic via filter on wp_trim_excerpt --><!-- AddThis Share Buttons generic via filter on wp_trim_excerpt --><\/p>\n","protected":false},"author":22,"featured_media":5003,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[525,469,619,56,35],"class_list":["post-5002","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-video","tag-collapse","tag-featured","tag-glacier","tag-rockfall","tag-video"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/5002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/comments?post=5002"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/5002\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/5003"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=5002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=5002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=5002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}