{"id":29359,"date":"2018-12-01T00:03:14","date_gmt":"2018-12-01T00:03:14","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=29359"},"modified":"2018-12-01T00:04:20","modified_gmt":"2018-12-01T00:04:20","slug":"alaska-earthquake-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2018\/12\/01\/alaska-earthquake-1\/","title":{"rendered":"First images of slope failures triggered by the M=7.0 Alaska earthquake"},"content":{"rendered":"

First images of slope failures triggered by the M=7.0 Alaska earthquake<\/h4>\n

The M=7.0 Alaska earthquake on 30th November 2018<\/a> was sufficiently large to trigger some slope failures, even though it was comparatively deep (41 km).\u00a0 Such an earthquake would be expected to generate shaking over a large area, but probably with reasonably modest peak ground accelerations.\u00a0 The USGS ground failure model<\/a> suggests that only a small area might have been subjected to slope failures, but much of the area affected had limited potential for large-scale landslides due to the low relief topography:-<\/p>\n

\"Alaska

USGS map of landslide potential<\/a> from the M=7.0 Alaska earthquake<\/p><\/div>\n

.<\/p>\n

There may be some landslides to the east of the epicentre in the rugged terrain there.\u00a0 Some images of slope failures have started to emerge though.\u00a0 @AOC-Security<\/a> has tweeted this image of a lateral spread<\/a> affecting a road embankment on Vine Road in Wasilla:-<\/p>\n

\"Alaska

An apparent lateral spread, triggered by the Alaska Earthquake affecting Vine Road in Wasilla . Image tweeted by @AOC-Security<\/a><\/p><\/div>\n

.<\/p>\n

Meanwhile David Ruffini<\/a> has tweeted an image of the same feature in daylight:-<\/p>\n

\"Alaska

An apparent lateral spread, triggered by the Alaska Earthquake affecting Vine Road in Wasilla . Image tweeted by David Ruffini<\/a>.<\/p><\/div>\n

.<\/p>\n

This lateral spread has been caught in a spectacular airborne image by Marc Lester<\/a>:-<\/p>\n

\"Alaska

A sensational image by Marc Lester<\/a> showing a lateral spread triggered by the Alaska Earthquake.<\/p><\/div>\n

.<\/p>\n

Josh Bierma<\/a> tweeted an image of another apparent lateral spread affecting a road:-<\/p>\n

\"Alaska

A lateral spread, triggered by the Alaska earthquake, affecting a highway. Image tweeted by Josh Bierma<\/a><\/p><\/div>\n

.<\/p>\n

That event could have been far worse for the occupants of the car.\u00a0 And Ryan Hobbs<\/a> tweeted an image of yet another such lateral spread affecting a highway:-<\/p>\n

\"Alaska

A lateral spead triggered by the Alaska earthquake. Image tweeted by Ryan Hobbs<\/a>.<\/p><\/div>\n

.<\/p>\n

Ryan Hobbs<\/a> has also tweeted an image of rockfalls affecting a road in the earthquake affected area:-<\/p>\n

\"Alaska

Rockfalls triggered by the Alaska earthquake. Image tweeted by Ryan Hobbs<\/a>.<\/p><\/div>\n

.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

First images of landslides triggered by the M=7.0 Alaska earthquake on 30th November 2018. Initial images show lateral spreads and rockfalls<\/p>\n","protected":false},"author":22,"featured_media":29379,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[537],"tags":[340,23,469,725,48],"class_list":["post-29359","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-earthquake-induced-landslide","tag-alaska","tag-earthquake","tag-featured","tag-north-america","tag-usa"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/29359","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=29359"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/29359\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/29379"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=29359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=29359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=29359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}