{"id":42810,"date":"2023-02-06T07:22:35","date_gmt":"2023-02-06T07:22:35","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=42810"},"modified":"2023-02-06T07:22:35","modified_gmt":"2023-02-06T07:22:35","slug":"gaziantep-earthquake-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2023\/02\/06\/gaziantep-earthquake-1\/","title":{"rendered":"Potential landslides from the 6 February 2023 Mw=7.8 earthquake near Nurda\u011f\u0131 in Gaziantep, Turkey"},"content":{"rendered":"

Potential landslides from the 6 February 2023 Mw=7.8 earthquake near Nurda\u011f\u0131 in Gaziantep, Turkey<\/strong><\/h4>\n

Initial reports from the area affected by the Mw=7.8 earthquake near Nurda\u011f\u0131 in Gaziantep, Turkey<\/a> in the early hours of 6 February 2023 indicate that this will be a very serious event.\u00a0 Some parts of the media are chasing the reported number of fatalities in Turkey and Syria<\/a>, whereas it is likely that the number of deaths will be in the high hundreds at least, and probably in the thousands.\u00a0 In the aftermath of the Haiti earthquake in 2010 I wrote about disaster reporting<\/a> – these points will apply here.<\/p>\n

Landslides are likely to have been a significant problem in this event.\u00a0 The best available information comes from the USGS ground failure model<\/a>, although this is very provisional at this stage.\u00a0 The earthquake itself had a strike slip mechanism, with the fault orientated NE-SW.\u00a0 The provisional USGS landslide probability map<\/a> looks like this:-<\/p>\n

\"Initial

Initial USGS landslide probability map for the 6 February 2023 earthquake near to Nurda\u011f\u0131 in Gaziantep, Turkey<\/a>.<\/em><\/p><\/div>\n

.<\/p>\n

It is important to emphasise that this is provisional.\u00a0 The map will improve as better data becomes available about the fault and the mechanisms of the earthquake.\u00a0 But the above model has allowed the USGS to make an initial estimation of the area affected by landslides and of the population that has been exposed to the hazard:-<\/p>\n

\"Initial

Initial USGS estimations of the area and population exposed to landslides from the 6 February 2023 earthquake near to Nurda\u011f\u0131 in Gaziantep, Turkey<\/a>.<\/em><\/p><\/div>\n

.<\/p>\n

Based upon this we are likely to see some landslide fatalities plus substantial numbers of roads blocked by failures.\u00a0 This will impede the rescue work, especially in the initial, all-important, 24 hour period, in more remote areas.\u00a0 In general, landslides from strike-slip earthquakes cluster close to the surface expression of the fault trace, although some can still occur at considerable distances.<\/p>\n

At the time of writing there are few images from the area affected by the earthquake, mostly showing collapsed buildings.\u00a0 However, Daily Sabah has an interesting image showing <\/a>Gaziantep Castle<\/a>, which appears to have at least partially collapsed:-<\/span><\/p>\n

\"The

The collapse of Gaziantep Castle as a result of the 6 February 2023 earthquake near to Nurda\u011f\u0131 in Turkey. Image from the DHA Photo via the Daily Sabah.<\/a><\/em><\/p><\/div>\n

.<\/p>\n

Note the retaining wall failure at the foot of the slope.<\/p>\n","protected":false},"excerpt":{"rendered":"

The 6 February 2023 Mw=7.8 earthquake near Nurda\u011f\u0131 in Gaziantep, Turkey is likely to have triggered substantial numbers of landslides<\/p>\n","protected":false},"author":22,"featured_media":42813,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[537],"tags":[16802,23,469,588,227],"class_list":["post-42810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-earthquake-induced-landslide","tag-coseismic-landslide","tag-earthquake","tag-featured","tag-seismic","tag-turkey"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/42810","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=42810"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/42810\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/42813"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=42810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=42810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=42810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}