{"id":20245,"date":"2016-11-04T07:00:57","date_gmt":"2016-11-04T07:00:57","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/?p=20245"},"modified":"2016-11-03T17:00:21","modified_gmt":"2016-11-03T17:00:21","slug":"norcia-earthquake","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2016\/11\/04\/norcia-earthquake\/","title":{"rendered":"Landslides from the Norcia earthquake sequence in Italy"},"content":{"rendered":"<h5>Landslides from the Norcia earthquake sequence in Italy<\/h5>\n<p>The M=6.5 Norcia earthquake in Italy a few days ago is the latest in a sequence that stretches back some months.\u00a0 As I noted previously, Salvatore Martino from the University of Roma &#8220;Sapienza&#8221;, and his colleagues have been compiling an inventory of these landslides, which is being made available online.\u00a0 Unsurprisingly, and very helpfully, they have been collecting data from the Norcia earthquake as well.\u00a0 He has very kindly provided the following update, which I post here with his agreement:<\/p>\n<p>On 26<sup>th<\/sup> October 2016 a strong earthquake (M 5.9 \u2013 42.949\u00b0N 13.074\u00b0E) struck the Central Apennines (Italy) at 21.18 local time, starting a seismic sequence that is still continuing. The seismic sequence generated hundreds of aftershocks (with a magnitude up to 5.4). On 30<sup>th<\/sup> October another mainshock (M 6.5\u00a0 at 42.84\u00b0N 13.11\u00b0E) struck the same area at 07.40 local time. This is the strongest seismic shock recorded in Central Italy since the 23<sup>rd<\/sup> November 1980 Irpinia earthquake. The seismic events caused severe damage to historical towns and villages at Norcia, Visso, Ussita, Castelsantangelo. Thousand of persons are now homeless and a lot of interruptions have occurred on main and secondary roads.<\/p>\n<p>Since the first hours after the mainshocks the work-team of the Research Centre for the Geological Risks \u2013 CERI of the University of Rome \u201cSapienza\u201d is operating in field to survey the ground effects induced by the earthquake. Up to now hundreds of disrupted landslides (<em>sensu<\/em> Keefer, 1984) have been surveyed. These events mainly include rockfalls, rockslides, roto-translational landslides and debris slides, which are distributed in a wide area up to about 25 km far from the epicenters of the two mainshocks.\u00a0 The surveyed data will be used to update the database (Italian acronym CEDIT) of earthquake-induced ground failures in Italy (Martino <em>et al.<\/em>, 2014), managed by the CERI, which will be available at this website: <a href=\"http:\/\/www.ceri.uniroma1.it\/index.php\/web-gis\/cedit\/\">http:\/\/www.ceri.uniroma1.it\/index.php\/web-gis\/cedit\/<\/a> . This has been already updated after the 24<sup>th<\/sup> August 2016 Amatrice earthquake.<\/p>\n<p>The following pictures show some of the main ground effects surveyed to date:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20266\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/11\/fig7-e1478190971856.jpg\" alt=\"Norcia earthquake\" width=\"640\" height=\"360\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20263\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/11\/fig1-e1478191068533.jpg\" alt=\"Norcia earthquake\" width=\"640\" height=\"360\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20259\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/11\/fig3-e1478191118820.jpg\" alt=\"Norcia earthquake\" width=\"640\" height=\"480\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20255\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/11\/fig5-e1478191153389.jpg\" alt=\"Norcia earthquake\" width=\"640\" height=\"480\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20257\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/11\/fig4-e1478190956473.jpg\" alt=\"Norcia earthquake\" width=\"640\" height=\"853\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20253\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/11\/fig6-e1478191263724.jpg\" alt=\"Norcia earthquake\" width=\"640\" height=\"480\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20249\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2016\/11\/fig8-e1478191296981.jpg\" alt=\"Norcia earthquake\" width=\"640\" height=\"386\" \/><\/p>\n<p>.<\/p>\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=qZcMu8TftpM\">Youtube also has drone footage<\/a> showing the aftermath of a large landslide near Visso:<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/qZcMu8TftpM\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/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>Salvatore Martino has kindly provided an update on landslides triggered by the M=6.5 Norcia earthquake in Italy this weekend<!-- 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":20266,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[537],"tags":[23,144,469,36],"class_list":["post-20245","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-earthquake-induced-landslide","tag-earthquake","tag-europe","tag-featured","tag-italy"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/20245","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=20245"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/20245\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/20266"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=20245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=20245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=20245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}