{"id":491,"date":"2009-01-09T08:11:00","date_gmt":"2009-01-09T08:11:00","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/2009\/01\/09\/magnitude-mw6-1-earthquake-in-costa-rica\/"},"modified":"2010-10-21T13:37:46","modified_gmt":"2010-10-21T17:37:46","slug":"magnitude-mw6-1-earthquake-in-costa-rica","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2009\/01\/09\/magnitude-mw6-1-earthquake-in-costa-rica\/","title":{"rendered":"Magnitude Mw=6.1 earthquake in Costa Rica"},"content":{"rendered":"<p>At 19:21 <span class=\"blsp-spelling-error\">UTC<\/span> (13:21 local time) on 8<span class=\"blsp-spelling-error\">th<\/span> January a Magnitude <span class=\"blsp-spelling-error\">Mw<\/span>=6.1 earthquake struck Costa Rica.  Although this is not a particularly large earthquake, it is certainly substantial enough to have triggered many landslides, especially given that it occurred very close to the surface (the <span class=\"blsp-spelling-error\">USGS<\/span> depth estimate is just 4.5 km).  Several reports have come in already about fatalities associated with landslides.  Confirmed are the deaths of two girls near the city of <span class=\"blsp-spelling-error\">Alajuela<\/span>, NW of San Jose, whilst less well confirmed reports suggest that a family of five may also have perished in a landslide.<\/p>\n<p>The <a href=\"http:\/\/earthquake.usgs.gov\/eqcenter\/shakemap\/global\/shake\/2009bpba\/\"><span class=\"blsp-spelling-error\">USGS<\/span><\/a> has provided a shake map:<br \/><a href=\"http:\/\/earthquake.usgs.gov\/eqcenter\/shakemap\/global\/shake\/2009bpba\/download\/intensity.jpg\"><img decoding=\"async\" style=\"margin: 0px auto 10px;text-align: center;cursor: pointer;width: 377px;height: 442px\" src=\"http:\/\/earthquake.usgs.gov\/eqcenter\/shakemap\/global\/shake\/2009bpba\/download\/intensity.jpg\" alt=\"\" border=\"0\" \/><\/a>This is an area of known high levels of seismic hazard:<br \/><a href=\"http:\/\/neic.usgs.gov\/neis\/bulletin\/neic_bpba_w.jpg\"><img decoding=\"async\" style=\"margin: 0px auto 10px;text-align: center;cursor: pointer;width: 280px;height: 261px\" src=\"http:\/\/neic.usgs.gov\/neis\/bulletin\/neic_bpba_w.jpg\" alt=\"\" border=\"0\" \/><\/a>This area is probably particularly prone to landslides as the soils consist of heavy weathered soils and those derived from volcanic products, both of which are potentially unstable when disturbed.  I have come across two very interesting resources.  First, a map of damage reports (in Spanish) is being put together, based on information from Twitter.  This should be visible below:<\/p>\n<p><a href=\"http:\/\/maps.google.com\/maps\/ms?ie=UTF8&amp;hl=es&amp;msa=0&amp;msid=109262405897297884572.00045fff0cbf64588e663&amp;ll=10.110838,-84.199219&amp;spn=0.609732,0.884399&amp;source=embed\"><span class=\"blsp-spelling-error\">Ver<\/span> <span class=\"blsp-spelling-error\">mapa<\/span> <span class=\"blsp-spelling-error\">m\u00e1s<\/span> <span class=\"blsp-spelling-error\">grande<\/span><\/a><\/p>\n<p>Second, there is an interesting <span class=\"blsp-spelling-error\">Youtube<\/span> video of TV footage of the aftermath, much of it shot from a helicopter.  The first part of the footage shows I think attempts to recover the remains of the two girls killed in a landslide, whilst the middle section shows landslides triggered in the <span class=\"blsp-spelling-error\">epicentral<\/span> region.  Based upon this it might well be that further fatalities become apparent when daylight reaches this area.  The video should be visible below, or can be viewed <a href=\"http:\/\/uk.youtube.com\/watch?v=TfX3NmBcfhA\">here<\/a>.<\/p>\n<p><iframe loading=\"lazy\" title=\"Recuento de los da\u00f1os de sismo en Costa Rica: 08 de enero de 2009 - 13:19\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/TfX3NmBcfhA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" 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>At 19:21 UTC (13:21 local time) on 8th January a Magnitude Mw=6.1 earthquake struck Costa Rica. Although this is not a particularly large earthquake, it is certainly substantial enough to have triggered many landslides, especially given that it occurred very close to the surface (the USGS depth estimate is just 4.5 km). Several reports have come in already about fatalities associated with landslides. Confirmed are the deaths of two girls &hellip;<!-- 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":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1],"tags":[371,307,23,959,963],"class_list":["post-491","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-central-america","tag-costa-rica","tag-earthquake","tag-landslide-report","tag-landslide-video"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/491","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=491"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/491\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}