{"id":35608,"date":"2020-11-19T08:35:50","date_gmt":"2020-11-19T08:35:50","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=35608"},"modified":"2020-11-19T08:35:50","modified_gmt":"2020-11-19T08:35:50","slug":"guinobatan","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2020\/11\/19\/guinobatan\/","title":{"rendered":"Guinobatan: a major lahar in the Philippines triggered by Super Typhoon Goni"},"content":{"rendered":"<h4>Guinobatan: a major lahar in the Philippines triggered by Super Typhoon Goni<\/h4>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Typhoon_Goni_(2020)\">Super typhoon Goni<\/a> (known locally as Rolly) brought extensive heavy rainfall to the Philippines over the weekend of 31 October and 1 November 2020.\u00a0 Widespread damage occurred, including landslides in many places.\u00a0 Very significant damage occurred in the town of Guinobatan in Albay, caused by a lahar from the flanks of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Mayon\">Mount Mayon, an active stratovolcano<\/a>.<\/p>\n<p>The best image that I can find of the lahar itself appears in <a href=\"https:\/\/news.abs-cbn.com\/video\/news\/11\/18\/20\/albay-governor-denies-quarrying-spawned-landslide-after-duterte-orders-probe\">a video interview of the governor of Albay province by ABS-CBN News<\/a>:-<\/p>\n<div id=\"attachment_35611\" style=\"width: 809px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-35611\" class=\" wp-image-35611\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-1.jpg\" alt=\"Guinobatan lahar\" width=\"799\" height=\"535\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-1.jpg 1224w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-1-300x201.jpg 300w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-1-1024x685.jpg 1024w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-1-768x514.jpg 768w\" sizes=\"auto, (max-width: 799px) 100vw, 799px\" \/><p id=\"caption-attachment-35611\" class=\"wp-caption-text\">The aftermath of the lahar at Guinobatan in the Philippines. Image via <a href=\"https:\/\/news.abs-cbn.com\/video\/news\/11\/18\/20\/albay-governor-denies-quarrying-spawned-landslide-after-duterte-orders-probe\">ABS-CBN News<\/a>.<\/p><\/div>\n<p>.<\/p>\n<p>Reports indicate that the lahar struck around about 150 houses in and around Guinobatan, with seven fatalities.\u00a0 There is now considerable controversy as to whether quarrying on the slopes of Mount Mayon may have been responsible for the lahar.<\/p>\n<p><a href=\"https:\/\/www.planet.com\/\">Planet Labs<\/a> have captured a good image of the aftermath of the lahar at Guinobatan:<\/p>\n<div id=\"attachment_35613\" style=\"width: 808px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-35613\" class=\" wp-image-35613\" src=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-2.jpg\" alt=\"Planet Labs lahar image at Guinobatan\" width=\"798\" height=\"523\" srcset=\"https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-2.jpg 2270w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-2-300x197.jpg 300w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-2-1024x672.jpg 1024w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-2-768x504.jpg 768w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-2-1536x1008.jpg 1536w, https:\/\/blogs.agu.org\/landslideblog\/files\/2020\/11\/20_11-Guinobatan-2-2048x1343.jpg 2048w\" sizes=\"auto, (max-width: 798px) 100vw, 798px\" \/><p id=\"caption-attachment-35613\" class=\"wp-caption-text\"><a href=\"https:\/\/www.planet.com\/\">Planet Labs<\/a> image of the aftermath of the lahar at Guinobatan. Planet Labs PlanetScope image captured on 13 November 2020. Copyright <a href=\"https:\/\/www.planet.com\/\">Planet Labs<\/a>, used with permission.<\/p><\/div>\n<p>.<\/p>\n<p>The image shows that the lahar passed to the east of the village of Maninila and then through the isolated houses at Tamdarora before striking the northeast margin of Guinobatan (in the southwest of the image above).\u00a0 it is clear that many properties were destroyed in the lahar.<\/p>\n<p>The imagery does not provide strong evidence to support or refute the premise that quarrying may have been an issue.\u00a0 However, Mount Mayon has a long history of deadly lahars.\u00a0 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Mayon#Deadly_lahars\">Wikipedia has a good description of these events<\/a>, which includes a major event on 30 November 2006, in which at least 1.266 people were killed.\u00a0 Whilst most of the damage occurred in Padang, on the outskitrts of Legazpi City, large areas of Guinobatan were also destroyed.\u00a0 Another major lahar occurred in October 1766, again triggered by a typhoon, and again in 1825, when 1,500 people died.<\/p>\n<p>.<\/p>\n<h4>Reference and acknowledgement<\/h4>\n<p>Planet Team (2020). Planet Application Program Interface: In Space for Life on Earth. San Francisco, CA. <a href=\"https:\/\/www.planet.com\/\">https:\/\/www.planet.com\/<\/a><\/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>Over the weekend of 31 October and 1 November 2020, Super Typhoon Goni triggered a major lahar from the flanks of Mount Mayon in the Philippines <!-- 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":35611,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[469,34,252,314,975],"class_list":["post-35608","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-report","tag-featured","tag-lahar","tag-philippines","tag-se-asia","tag-typhoon"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/35608","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=35608"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/35608\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/35611"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=35608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=35608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=35608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}