{"id":41476,"date":"2022-08-30T09:06:50","date_gmt":"2022-08-30T09:06:50","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=41476"},"modified":"2022-08-30T09:06:50","modified_gmt":"2022-08-30T09:06:50","slug":"mount-elbrus-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2022\/08\/30\/mount-elbrus-1\/","title":{"rendered":"The Mount Elbrus boulder video"},"content":{"rendered":"<h4>The Mount Elbrus boulder video<\/h4>\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=JizGXm8qemI\">A video was posted on to Youtube<\/a> on 21 August showing a remarkable rockfall on <a href=\"https:\/\/en.wikipedia.org\/wiki\/Mount_Elbrus\">Mount Elbrus<\/a>. This is the highest peak in the Caucasus Mountains, rising to 5,642 metres.\u00a0 It is a popular climbing site.<\/p>\n<p>The video, which should be visible below, was captured by Alex09spartak, who seems to be \u0410\u043b\u0435\u043a\u0441 \u041d\u0438\u043a\u0438\u0444\u043e\u0440\u043e\u0432, which Google translate turns into Alex Nikiforov.\u00a0 <a href=\"https:\/\/www.tiktok.com\/@alex.spartak\/video\/7053417751389441282?_d=secCgYIASAHKAESPgo8T1r9jwfvWk5UXj6eljuwEcsOpFk2yr11MwQHejFF2YYMrvYNeqT8lqOPCew%2Bv2U0osFXX8AAip0BlEiCGgA%3D&amp;_r=1&amp;is_copy_url=1&amp;is_from_webapp=v1&amp;language=ru&amp;sec_uid=MS4wLjABAAAAbGTVoSaaV8rPQz-Hza0SXeZ_uEmNEpK46aUvXigY8OTC9-eJXp5OzA3uwszt8brA&amp;sec_user_id=MS4wLjABAAAAbGTVoSaaV8rPQz-Hza0SXeZ_uEmNEpK46aUvXigY8OTC9-eJXp5OzA3uwszt8brA&amp;share_app_id=1233&amp;share_author_id=6568700044996100101&amp;share_link_id=8125f3bc-309c-4200-bff7-2a7ea96f4187&amp;source=h5_m&amp;timestamp=1651130203&amp;u_code=d0h0g9ekac385i&amp;ugbiz_name=Account&amp;user_id=6568700044996100101&amp;utm_campaign=client_share&amp;utm_medium=android&amp;utm_source=copy\">The original version of the video was posted on Tiktok<\/a>, which provides the full sequence (and is actually much better than the edited Youtube version).<\/p>\n<iframe loading=\"lazy\" title=\"Massive Boulder nearly hits Mountaineers on Mt ELBRUS\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/JizGXm8qemI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<p>.<\/p>\n<p>I am not sure as to where the rockfall occurred, but the mountain is at 43.37, 42.45.<\/p>\n<p>The boulder appears to detach from a large area of loose rock. In the early part of the video the boulder is rotating around its shortest axis &#8211; <a href=\"https:\/\/blogs.agu.org\/landslideblog\/2021\/04\/05\/neustift-in-austria-boulder-vs-house-the-boulder-won\/\">as I have noted previously, this allows the boulder to accelerate quickly and to bounce<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-41479 size-medium\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/08\/22_08-Elbrus-1-249x300.jpg\" alt=\"The Mount Elbrus boulder rotating around its shortest axis. \" width=\"249\" height=\"300\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/08\/22_08-Elbrus-1-249x300.jpg 249w, https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/08\/22_08-Elbrus-1.jpg 405w\" sizes=\"auto, (max-width: 249px) 100vw, 249px\" \/><\/p>\n<p><em style=\"font-size: 14px\">The Mount Elbrus boulder rotating around its shortest axis. Still from a video posted to <a href=\"https:\/\/www.youtube.com\/watch?v=JizGXm8qemI\">Youtube<\/a>.<\/em><\/p>\n<p>.<\/p>\n<p>However, the ice surface impedes this type of movement.\u00a0 The boulder stops bouncing and loses its rotation, presumably because of a weaker, smoother and lower friction surface.\u00a0 The boulder quickly starts to slide, and then follows the slope.\u00a0 This is fortunate for the climbers as the trajectory of the rock markedly changes.<\/p>\n<p>.<\/p>\n<h4>Acknowledgement<\/h4>\n<p>Thanks to loyal reader Dave Eddy for highlighting this amazing video.<\/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 video has been posted to social media showing the movement of a large boulder on Mountain Elbrus in the Caucasus Mountains.<!-- 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":41479,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[116,30699,469,963,56,546],"class_list":["post-41476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-video","tag-boulder","tag-clmiber","tag-featured","tag-landslide-video","tag-rockfall","tag-russia"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/41476","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=41476"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/41476\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/41479"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=41476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=41476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=41476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}