{"id":42344,"date":"2022-12-14T07:45:50","date_gmt":"2022-12-14T07:45:50","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=42344"},"modified":"2022-12-14T07:45:50","modified_gmt":"2022-12-14T07:45:50","slug":"palos-verdes-estates-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2022\/12\/14\/palos-verdes-estates-1\/","title":{"rendered":"Palos Verdes Estates: a coastal cliff landslide captured on video"},"content":{"rendered":"<h4><strong>Palos Verdes Estates: a coastal cliff landslide captured on video<\/strong><\/h4>\n<p>On Friday 9 December 2022 a landslide occurred on a coastal cliff at Palos Verdes Estates in <a href=\"https:\/\/blogs.agu.org\/landslideblog\/?s=california&amp;submit.x=0&amp;submit.y=0&amp;mswhere=blog\">California<\/a>.\u00a0 Thanks to loyal readers Ernie Roumelis and Ken for highlighting this one &#8211; it is particularly interesting because it was caught on video from a helicopter.\u00a0 <a href=\"https:\/\/youtu.be\/mfwSR9NPXLk?t=22\">A Fox 11 helicopter was in the area, and succeeded in capturing the runout of the failure<\/a>:-<\/p>\n<iframe loading=\"lazy\" title=\"SkyFOX video shows massive landslide in Palos Verdes Estates\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/mfwSR9NPXLk?start=22&feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<p>.<\/p>\n<p><a href=\"https:\/\/youtu.be\/5u1698JgSvQ?t=41\">There is also another video, taken from further along the coast, which also captures the failure well<\/a>:-<\/p>\n<iframe loading=\"lazy\" title=\"Cliff collapse caught on camera in Palos Verdes Estates\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/5u1698JgSvQ?start=41&feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<p>.<\/p>\n<p><a href=\"https:\/\/www.dailybreeze.com\/2022\/12\/12\/more-landslides-possible-on-closed-stretch-of-palos-verdes-peninsula-cliffs-say-geologists\/\">The Daily Breeze has a couple of images of the aftermath of the landslide<\/a>, including this good image of the source area:-<\/p>\n<div id=\"attachment_42347\" style=\"width: 608px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-42347\" class=\"wp-image-42347 size-full\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-2.jpg\" alt=\"The landslide at Palos Verdes Estates. \" width=\"598\" height=\"398\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-2.jpg 598w, https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-2-300x200.jpg 300w\" sizes=\"auto, (max-width: 598px) 100vw, 598px\" \/><p id=\"caption-attachment-42347\" class=\"wp-caption-text\"><em>The landslide at Palos Verdes Estates. <a href=\"https:\/\/www.dailybreeze.com\/2022\/12\/12\/more-landslides-possible-on-closed-stretch-of-palos-verdes-peninsula-cliffs-say-geologists\/\">Image by Chuck Bennett via The Daily Breeze.<\/a><\/em><\/p><\/div>\n<p>.<\/p>\n<p>The image suggests that the failure was a structurally controlled wedge failure that turned into a dry debris avalanche.\u00a0 It is fortunate that the landslide occurred when the beach was largely unoccupied.\u00a0 Meanwhile <a href=\"https:\/\/edition.cnn.com\/2022\/12\/10\/us\/california-landslide-palos-verdes-estates\/index.html\">CNN has a good image of the debris and the (fortunately unoccupied) pick-up truck that was struck by the landslide<\/a>:-<\/p>\n<div id=\"attachment_42349\" style=\"width: 810px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-42349\" class=\"wp-image-42349\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-1.jpg\" alt=\"The debris from the landslide at Palos Verdes Estates\" width=\"800\" height=\"450\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-1.jpg 1280w, https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-1-300x169.jpg 300w, https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-1-1024x576.jpg 1024w, https:\/\/blogs.agu.org\/landslideblog\/files\/2022\/12\/22_12-Palos-Verdes-1-768x432.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-42349\" class=\"wp-caption-text\"><em>The debris from the landslide at Palos Verdes Estates. <a href=\"https:\/\/edition.cnn.com\/2022\/12\/10\/us\/california-landslide-palos-verdes-estates\/index.html\">Image by Beth Jay via CNN<\/a>.<\/em><\/p><\/div>\n<p>.<\/p>\n<p>The location of the landslide at Palos Verdes Estates is 33.804, -118.394.\u00a0 This is a section of coast, in common with many other locations in California, is no stranger to landslides.\u00a0 It is interesting that the event occurred in dry weather, ahead of the major rainstorm that affected this region over the weekend.\u00a0 Coastal cliff failures often seem to occur in dry weather (this is an area of active research across multiple groups at the moment).\u00a0 It should also be noted that artificial irrigation is common in this area, although I have no evidence of the likely cause in this case.<\/p>\n<p>For those who are interested in the underlying geology, and the associated landslides, <a href=\"https:\/\/www.rpvca.gov\/DocumentCenter\/View\/1225\/Geology-Survey-Landslide-Map-of-the-Palos-Verdes-Peninsula-PDF?bidId=\">Ernie has highlighted a really interesting map produced by the California Geological Survey<\/a>.\u00a0 Almost every cliff along this coast is likely to have experienced landslides of one form or another over time.<\/p>\n<p>California remains remarkably prone to landslides of multiple types, both on the coast and inland, resulting from the combination of geology, climate, seismicity and the actions of people.<\/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>On 9 December 2022 a landslide occurred on a cliff at Palos Verdes Estates in California. The failure was captured on video from a news helicopter.<!-- 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":42349,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[137,183,732,469,959,725,48],"class_list":["post-42344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-video","tag-california","tag-coast","tag-coastal-cliff","tag-featured","tag-landslide-report","tag-north-america","tag-usa"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/42344","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=42344"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/42344\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/42349"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=42344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=42344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=42344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}