{"id":29503,"date":"2018-12-18T11:01:22","date_gmt":"2018-12-18T11:01:22","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=29503"},"modified":"2018-12-20T04:17:00","modified_gmt":"2018-12-20T04:17:00","slug":"loch-quoich-landslide","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2018\/12\/18\/loch-quoich-landslide\/","title":{"rendered":"Loch Quoich landslide: an interesting and disruptive failure in the Highlands of Scotland"},"content":{"rendered":"<h4>Loch Quoich landslide: an interesting and disruptive failure in the Highlands of Scotland<\/h4>\n<p>On 10th November a significant landslide occurred at Loch Quoich near Kinloch Hourn in the Highlands of western Scotland.\u00a0 <a href=\"https:\/\/www.highland.gov.uk\/news\/article\/11500\/loch_quoich_landslip_update\">The Highland Council has a really good update on this landslide on their webpages<\/a>, which includes this image:-<\/p>\n<div id=\"attachment_29504\" style=\"width: 295px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-29504\" class=\"wp-image-29504 size-full\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_1.jpg\" alt=\"Loch Quioch\" width=\"285\" height=\"380\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_1.jpg 285w, https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_1-225x300.jpg 225w\" sizes=\"auto, (max-width: 285px) 100vw, 285px\" \/><p id=\"caption-attachment-29504\" class=\"wp-caption-text\">The landslide at Loch Quoich in the Highlands of Scotland. Image via the <a href=\"https:\/\/www.highland.gov.uk\/news\/article\/11500\/loch_quoich_landslip_update\">Highland Council<\/a>.<\/p><\/div>\n<p>.<\/p>\n<p>This landslide, <a href=\"https:\/\/www.bbc.co.uk\/news\/uk-scotland-highlands-islands-46193629\">which has a reported mass of about 9,000 tonnes<\/a>, extends over a distance of about 1 m.\u00a0 The slip has blocked the road across the slope and also caused operations at the dam to be shut down as a result of debris accumulation in the spillway.\u00a0 The landslide destroyed a pylon, cutting the electricity supply to 20,000 homes, as well as destroying telephone cables. Services have now been restored, but the road remains closed and will not reopen prior to mid 2019.<\/p>\n<p>The best images of the landslide can be found in a drone video that has been <a href=\"https:\/\/vimeo.com\/300997438\">posted online to Vimeo by the power company SSEN<\/a>.\u00a0 The quality of the imagery is fantastic.\u00a0 You may or may not be able to view it below; if not then <a href=\"https:\/\/vimeo.com\/300997438\">follow this link<\/a>:<\/p>\n<p><iframe loading=\"lazy\" title=\"Invergarry Landslip: Aerial footage, 12 November 2018\" src=\"https:\/\/player.vimeo.com\/video\/300997438?dnt=1&amp;app_id=122963\" width=\"500\" height=\"281\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write\"><\/iframe><\/p>\n<p>.<\/p>\n<p>This video gives an amazing view of the structure of the landslide.\u00a0 So, starting from the top, this is the source area:-<\/p>\n<div id=\"attachment_29515\" style=\"width: 512px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-29515\" class=\"wp-image-29515 size-full\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_2.jpg\" alt=\"Loch Quoich\" width=\"502\" height=\"426\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_2.jpg 502w, https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_2-300x255.jpg 300w\" sizes=\"auto, (max-width: 502px) 100vw, 502px\" \/><p id=\"caption-attachment-29515\" class=\"wp-caption-text\">The source area of the Loch Quoich landslide in Scotland. Still from a <a href=\"https:\/\/vimeo.com\/300997438\">drone video posted by SSEN<\/a>.<\/p><\/div>\n<p>.<\/p>\n<p>The landslide appears to have initiated through a toppling failure of the rock bluff.\u00a0 Note the very obvious fault running through the middle of the outcrop.\u00a0 The initial failure has entrained a large volume of material from the upper part of the slope to generate a substantial failure.\u00a0 The upper portion of this entrainment zone can be seen below:<\/p>\n<div id=\"attachment_29519\" style=\"width: 553px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-29519\" class=\"wp-image-29519 size-full\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_3.jpg\" alt=\"Loch Quoich\" width=\"543\" height=\"400\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_3.jpg 543w, https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_3-300x221.jpg 300w\" sizes=\"auto, (max-width: 543px) 100vw, 543px\" \/><p id=\"caption-attachment-29519\" class=\"wp-caption-text\">The entrainment zone of the Loch Quoich landslide in Scotland. Still from a <a href=\"https:\/\/vimeo.com\/300997438\">drone video posted by SSEN<\/a>.<\/p><\/div>\n<p>.<\/p>\n<p>Further down the slope the mechanism changes to deposition (with some erosion in the channels):-<\/p>\n<div id=\"attachment_29520\" style=\"width: 558px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-29520\" class=\"wp-image-29520 size-full\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_4.jpg\" alt=\"Loch Quoich\" width=\"548\" height=\"479\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_4.jpg 548w, https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_4-300x262.jpg 300w\" sizes=\"auto, (max-width: 548px) 100vw, 548px\" \/><p id=\"caption-attachment-29520\" class=\"wp-caption-text\">The transition from the entrainment zone to the deposition of the Loch Quoich landslide in Scotland. Still from a <a href=\"https:\/\/vimeo.com\/300997438\">drone video posted by SSEN<\/a>.<\/p><\/div>\n<p>.<\/p>\n<p>Below this the landslide has deposited a comparatively thin mass over a large area.\u00a0 Note the destroyed pylon.\u00a0 It is interesting that the deposit was able to cross the spillway:-<\/p>\n<div id=\"attachment_29524\" style=\"width: 650px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-29524\" class=\"wp-image-29524 size-full\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2018\/12\/18_12-Loch_Quioch_5-e1545121700610.jpg\" alt=\"Loch Quoich\" width=\"640\" height=\"356\" \/><p id=\"caption-attachment-29524\" class=\"wp-caption-text\">The lower part of the of the Loch Quoich landslide in Scotland. Still from a <a href=\"https:\/\/vimeo.com\/300997438\">drone video posted by SSEN<\/a>.<\/p><\/div>\n<p>.<\/p>\n<p>&nbsp;<\/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>Loch Quioch landslide: an interesting and disruptive failure in the Highlands of Scotland in November, including drone footage<!-- 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":29504,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[3],"tags":[469,19512,19516,27,228,133],"class_list":["post-29503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-report","tag-featured","tag-landslide-repoort","tag-pylon","tag-road","tag-scotland","tag-uk"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/29503","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=29503"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/29503\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/29504"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=29503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=29503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=29503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}