{"id":588,"date":"2008-08-31T08:52:00","date_gmt":"2008-08-31T08:52:00","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/2008\/08\/31\/updated-4th-sept-magnitude-5-7-earthquake-in-china\/"},"modified":"2010-10-21T13:43:15","modified_gmt":"2010-10-21T17:43:15","slug":"updated-4th-sept-magnitude-5-7-earthquake-in-china","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2008\/08\/31\/updated-4th-sept-magnitude-5-7-earthquake-in-china\/","title":{"rendered":"UPDATED 4th Sept: Magnitude 5.7 earthquake in China"},"content":{"rendered":"<p>The <a href=\"http:\/\/earthquake.usgs.gov\/eqcenter\/recenteqsww\/Quakes\/us2008wia8.php\">USGS is reporting today<\/a> that there was a Mw=5.7 (<a href=\"http:\/\/news.xinhuanet.com\/english\/2008-08\/31\/content_9743372.htm\">Xinhua<\/a> is reporting M=6.1) earthquake in China at 4:30 pm local time yesterday.  <a href=\"http:\/\/news.xinhuanet.com\/english\/2008-08\/31\/content_9743372.htm\">News reports<\/a> this morning suggest that 25 people have been killed and a further 100 injured.  I wouldn&#8217;t normally post on an earthquake of this size as the likelihood of triggering extensive landslides is limited.  However, in this case there may be an interesting landslide angle to this.<\/p>\n<p>The terrain in which the earthquake struck is pretty mountainous as the following Google Earth image perspective shows.  The location is the estimated epicentre, as derived by the USGS:<\/p>\n<p><a href=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2010\/10\/08_08-china-EQ.jpg\"><img decoding=\"async\" style=\"margin: 0px auto 10px;text-align: center;cursor: pointer\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2010\/10\/08_08-china-EQ.jpg\" alt=\"\" border=\"0\" \/><\/a>This is clearly the type of terrain in which landslides occur, and of course this region received a good shake in the Wenchuan event.  However, of particular concern this time is the weather at the time of the earthquake.  <a href=\"http:\/\/trmm.gsfc.nasa.gov\/\">NASA TRMM<\/a> data are very useful for looking at the locations of heavy rainfall.  Their<a href=\"http:\/\/trmm.gsfc.nasa.gov\/publications_dir\/instant_2.html\"> latest image<\/a> shows that SW China has been having some pretty intense precipitation of late:<\/p>\n<p><a href=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2010\/10\/08_08-TRMM-china.gif\"><img decoding=\"async\" style=\"margin: 0px auto 10px;text-align: center;cursor: pointer\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2010\/10\/08_08-TRMM-china.gif\" alt=\"\" border=\"0\" \/><\/a>Given that material may have been loosened by the Wenchuan earthquake, the shallow depth of the earthquake and the rainfall at the time, there must be a reasonable chance that some landslides have occurred.  It will be interesting to see if reports of landslides emerge.<\/p>\n<p><span style=\"font-weight: bold\">UPDATE: <\/span>The <a href=\"http:\/\/news.xinhuanet.com\/english\/2008-09\/01\/content_9749431.htm\">official news agencies<\/a> are now reporting that there were 40 fatalities, but is not specifying how these occurred.  However, <a href=\"http:\/\/news.xinhuanet.com\/english\/2008-09\/01\/content_9749431.htm\">Xinhua<\/a> has released the following incredibly sad and poignant image showing soldiers recovering two bodies.  There seems to be little doubt that these people were buried in a landslide.<\/p>\n<p><a href=\"http:\/\/news.xinhuanet.com\/english\/2008-09\/01\/xin_562090501100831287394.jpg\"><img decoding=\"async\" style=\"margin: 0px auto 10px;text-align: center;cursor: pointer;width: 400px\" src=\"http:\/\/news.xinhuanet.com\/english\/2008-09\/01\/xin_562090501100831287394.jpg\" alt=\"\" border=\"0\" \/><\/a><br \/><span style=\"font-weight: bold\">UPDATE 4th SEPTEMBER<\/span>: It does appear that landslides have proven to be a substantial problem.  <a href=\"http:\/\/www.cctv.com\/english\/20080903\/104172.shtml\">CCTV<\/a> is now reporting that:<br \/><span style=\"font-family: verdana;font-size:85%\">&#8220;Local residents say there are areas in the remote mountainous regions that suffered even more severe devastation than Huili.  But quake-triggered landslides have damaged roads leading to those areas, hampering relief efforts. And it takes several hours at the very least&#8230;for relief supplies to get through.&#8221;<\/span><\/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>The USGS is reporting today that there was a Mw=5.7 (Xinhua is reporting M=6.1) earthquake in China at 4:30 pm local time yesterday. News reports this morning suggest that 25 people have been killed and a further 100 injured. I wouldn&#8217;t normally post on an earthquake of this size as the likelihood of triggering extensive landslides is limited. However, in this case there may be an interesting landslide angle to &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":""},"categories":[1],"tags":[333,16,23,132],"class_list":["post-588","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-333","tag-china","tag-earthquake","tag-sichuan"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/588","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=588"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/588\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}