{"id":16266,"date":"2015-09-27T06:19:52","date_gmt":"2015-09-27T06:19:52","guid":{"rendered":"http:\/\/blogs.agu.org\/landslideblog\/?p=16266"},"modified":"2015-09-27T06:19:52","modified_gmt":"2015-09-27T06:19:52","slug":"tonzang-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2015\/09\/27\/tonzang-1\/","title":{"rendered":"Tonzang landslide: a new giant landslide in Chin Division, Burma (Myanmar)"},"content":{"rendered":"
Tonzang landslide<\/h5>\n

Late in July extremely heavy rainfall affected Chin Division in Burma (Myanmar), triggering extensive landsliding and flooding.\u00a0 This event has been very little reported, but all of the indications were that the impacts were substantial.\u00a0 I have been trying to track down further information about this event ever since, and have now come across some information about it.\u00a0 In particular, it is now clear that the rainfall triggered what appears to be at least one giant (i.e. > million cubic metre) landslide.\u00a0 Whilst the area has been cloud covered since the disaster, Unosat have managed to obtain a partially cloud-free\u00a0Pleiades image of the area, and have posted an interpretative image on their website<\/a>:-<\/p>\n

\"Tonzang<\/a>

Tonzang landslide via UNOSAT<\/a><\/p><\/div>\n

..<\/p>\n

This is a very large landslide – the red area is the lake that has formed behind the landslide dam – this is 34 hectares in surface area according to UNOSAT.\u00a0 The part of the landslide that is visible here appears to be more than a kilometre wide and at least 3 km long.\u00a0 But note that all we are seeing here is the deposit – the track and source are somewhere beneath the cloud off the image.\u00a0 Colin Stark<\/a> has very kindly overlain the image onto the Google Earth imagery of the area, giving an indication of the portion of the landside that we can see, and a symbol to indicate the likely source area:<\/p>\n

 <\/p>\n

\"Tonzang<\/a>

Tonzang landslide – UNOSAT image overlain onto Google Earth, courtesy of Colin Stark<\/a><\/p><\/div>\n

.<\/p>\n

As the monsoon withdraws the chances of getting a decent satellite image of the Tonzang landslide will increase, and this is a landslide on such a scale that it will be readily identifiable on Landsat 8, and suchlike.\u00a0 Watch this space!<\/p>\n

Meanwhile, there is a blog featuring landslides in the Hakha City area<\/a> of Chin Division, Hakha City, being run out of the USA.\u00a0 It has a fantastic selection of images of some of the landslides triggered by this heavy rainstorm event:-<\/p>\n

\"Tonzang<\/a>

Landslides in the Hakha City area of Chin Division via a blog<\/a><\/p><\/div>\n

.<\/p>\n

This area is 150 km or so south of the Tonzang region, so I don’t think the landslides featured here is that in the UNOSAT image.\u00a0 If so, it suggests that this was an extremely large landslide inducing rainfall event, probably the most important of the year to date.<\/p>\n","protected":false},"excerpt":{"rendered":"

In late July exceptional rainfall appears to have triggered a large number of landslides in Chin Division, Burma (Myanmar), including the giant Tonzang landslide<\/p>\n","protected":false},"author":22,"featured_media":16278,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,64,602],"tags":[302,469,1011,314],"class_list":["post-16266","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-report","category-monsoon","category-photo-gallery","tag-burma","tag-featured","tag-landslside-report","tag-se-asia"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/16266","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=16266"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/16266\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/16278"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=16266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=16266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=16266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}