{"id":31322,"date":"2019-06-27T06:01:42","date_gmt":"2019-06-27T06:01:42","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=31322"},"modified":"2019-06-27T06:02:46","modified_gmt":"2019-06-27T06:02:46","slug":"mount-iliamna-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2019\/06\/27\/mount-iliamna-1\/","title":{"rendered":"Mount Iliamna: a large landslide in Alaska on 20th June 2019"},"content":{"rendered":"

Mount Iliamna: a large landslide in Alaska on 20th June 2019<\/h4>\n

A very large landslide occurred on the flanks of Mount Iliamna<\/a>, a volcano located in Alaska, on 20th June 2019.\u00a0 The landslide has been described by the Alaska Volcano Observatory<\/a>, who have posted a number of images of the aftermath<\/a>.\u00a0 The best of these was taken by Loren Prosser on the day after the landslide:-<\/p>\n

\"Mount

The large landslide on the flanks of Mount Iliamna on 21st June 2019. Image by Loren Prosser, posted by the Alaska Volcano Observatory.<\/a><\/p><\/div>\n

.<\/p>\n

The caption for the image is as follows:<\/p>\n

Photo of Red Glacier avalanche that occurred on 6\/21 ~00:05 UTC (6\/20 ~4:05 pm AK). Description from the photographer: “attached pics from a fly by this past Friday evening. The slide appeared a few days old at that point, and seemed to originate near the summit. The slide & debris are visible from across the inlet now as well. Debris field approx 2+ miles wide & the toe. Pretty impressive slide altogether!”<\/em><\/p>\n

The landslide has been captured by a Sentinel 2 satellite image that is available via the Sentinel Hub<\/a>:-<\/p>\n

\"Mount

A Sentinel 2 image, collected on 25th June 2019, showing the Mount Iliamna landslide. Image via Sentinel Hub Playground<\/a>.<\/p><\/div>\n

.<\/p>\n

The landslide appears to be in the order of about 6 km in length, and over 2 km wide at the toe.\u00a0 This image, also via the Alaska Volcano Observatory, and taken by Dennis Anderson on 22nd June 2019, gives a better impression of the scale of the event:-<\/p>\n

\"Mount

The Mount Iliamna landslide. Image collected by Dennis Anderson and posted online by the Alaska Volcano Observatory<\/a>.<\/p><\/div>\n

.<\/p>\n

The caption for this image states<\/a>:<\/p>\n

Rockslide on Iliamna volcano on 6\/21\/2019. This image was taken around 11:00 am on 6\/22\/2019 by Dennis Anderson from Diamond Ridge NW of Homer using a tablet at the eyepiece of some 11×80 binoculars with a 4.5 degree field of view. This might have occurred sometime in the past 12-48 hours as Illiamna was obscured by clouds most of yesterday.<\/em><\/p>\n

The trigger of this landslide is not clear, but Alaska has experienced a series of very large landslides (often in the early part of the summer) in recent years, including Juneau<\/a>, Icy Bay<\/a> \/ Tyndall Glacier<\/a>, Glacier Bay<\/a> \/ Lamplugh<\/a>, and Sitka<\/a>.\u00a0 There is good evidence that this is associated with climate change<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

A very large landslide occurred on the flanks of Mount Iliamna, a volcano located in Alaska, on 21st June 2019. <\/p>\n","protected":false},"author":22,"featured_media":31326,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[340,469,680,725,20063,48,24745],"class_list":["post-31322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-report","tag-alaska","tag-featured","tag-landslide-event","tag-north-america","tag-sentinel","tag-usa","tag-volcao"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/31322","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=31322"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/31322\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/31326"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=31322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=31322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=31322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}