{"id":44001,"date":"2023-06-21T06:40:15","date_gmt":"2023-06-21T06:40:15","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=44001"},"modified":"2023-06-21T06:40:15","modified_gmt":"2023-06-21T06:40:15","slug":"brienz-brinzauls-4","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2023\/06\/21\/brienz-brinzauls-4\/","title":{"rendered":"Post-failure Planet image of the Brienz-Brinzauls landslide"},"content":{"rendered":"<h4>Post-failure Planet image of the Brienz-Brinzauls landslide<\/h4>\n<p>The <a href=\"https:\/\/blogs.agu.org\/landslideblog\/2023\/06\/16\/brienz-brinzauls-failure\/\">major failure at Brienz-Brinzauls on 15 June 2023<\/a> has attracted <a href=\"https:\/\/www.swissinfo.ch\/eng\/business\/evacuated-village-spared-as-enormous-rock-masses-fall-in-brienz\/48595332\">considerable attention<\/a>.\u00a0 The landslide occurred at 23:38 local time on 15 June.\u00a0 <a href=\"https:\/\/www.suedostschweiz.ch\/ereignisse\/vier-tage-nach-dem-grossereignis-der-brienzer-schuttstrom-in-zahlen\">Initial estimates<\/a> are that about 1.2 million cubic metres of rock detached, with a shear surface that is about 50 m deep. The peak velocity is estimated to have been 80 km\/h.<\/p>\n<p><a href=\"https:\/\/www.planet.com\/\">Planet<\/a> has captured a high resolution satellite image of the aftermath of the landslide:-<\/p>\n<div id=\"attachment_44004\" style=\"width: 810px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-44004\" class=\" wp-image-44004\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-scaled.jpg\" alt=\"The aftermath of the 15\/16 June 2023 landslide, as captured by a high resolution Planet SkySat instrument.\" width=\"800\" height=\"800\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-scaled.jpg 2560w, https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-300x300.jpg 300w, https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-1024x1024.jpg 1024w, https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-150x150.jpg 150w, https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-768x768.jpg 768w, https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-1536x1536.jpg 1536w, https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-2048x2048.jpg 2048w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-44004\" class=\"wp-caption-text\"><em>The aftermath of the 15\/16 June 2023 landslide, as captured by a high resolution Planet SkySat instrument. Image copyright <a href=\"https:\/\/www.planet.com\/\">Planet<\/a>, used with permission.<\/em><\/p><\/div>\n<p>.<\/p>\n<p>As the image demonstrates, the lower part of the main path of the landslide did not flow towards the village, and the mass stopped short of the houses.\u00a0 Thus, Brienz-Brinzauls is essentially undamaged.<\/p>\n<p>The slider below should allow you to compare the before and after Planet Skysat images:-<\/p>\n<div class=\"juxtapose\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/23_06-landslide_brienz_brinzauls_switzerland_s119_20230614T151925Z_rgb_3840px_logo_wm-scaled.jpg\" alt=\"The site of the 15\/16 June 2023 landslide, as captured by a high resolution Planet SkySat instrument.\" width=\"800\" height=\"800\" \/><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2023\/06\/landslide_brienz_brinzauls_switzerland_s104_20230618T092711Z_rgb_3840px_logo_wm-scaled.jpg\" alt=\"The aftermath of the 15\/16 June 2023 landslide, as captured by a high resolution Planet SkySat instrument.\" width=\"800\" height=\"800\" \/><\/div>\n<p>As the image above shows, the main detachment is from the central part of the slope &#8211; this is the area known as The Island.\u00a0 There is limited loss of mass at the crown of the landslide.\u00a0 Runout distance appears to be quite modest for a landslide on this scale,\u00a0 probably because of the topography.<\/p>\n<p>It is <a href=\"https:\/\/academic.oup.com\/gji\/article\/229\/1\/299\/6433627\">well documented that Brienz-Brinzauls is located on an area of the slope that has been actively deforming<\/a>, albeit at rates that are much more modest than had been the case upslope.\u00a0 A fascinating element of the dynamics of the landslide will be to see how this lower slope now responds to the main failure.\u00a0 This is quite difficult to predict without a detailed understanding of the dynamics of the landslide complex.\u00a0 Work will also be needed to ensure that the landslide debris itself is stable, especially in the event of heavy rainfall. Hopefully, the village will be safe to reoccupy.<\/p>\n<p>Overall, this is a good outcome for Brienz-Brinzauls.<\/p>\n<p>.<\/p>\n<h4>Reference and acknowledgement<\/h4>\n<p>Many thanks to my friends at Planet for another stunning image.<\/p>\n<p>Planet Team (2023). Planet Application Program Interface: In Space for Life on Earth. San Francisco, CA. <a href=\"https:\/\/www.planet.com\/\">https:\/\/www.planet.com\/<\/a><\/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>A stunning satellite image has been captured by Planet of the 1.2 million cubic metre 15 June 2023 landslide at Brienz-Brinzauls.<!-- 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":44004,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[7203],"tags":[144,469,959,898,521,444],"class_list":["post-44001","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-planet-labs","tag-europe","tag-featured","tag-landslide-report","tag-planet","tag-satellite-image","tag-switzerland"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/44001","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=44001"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/44001\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/44004"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=44001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=44001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=44001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}