{"id":25752,"date":"2024-08-11T03:32:36","date_gmt":"2024-08-10T22:02:36","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=25752"},"modified":"2025-04-07T20:55:04","modified_gmt":"2025-04-07T15:25:04","slug":"nankai-trough","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/nankai-trough\/","title":{"rendered":"Nankai Trough"},"content":{"rendered":"<h2><strong>About Nankai Trough:\u00a0<\/strong><\/h2>\n<ul>\n<li>It is a \u201csubduction zone\u201d between two tectonic plates <strong>in the Pacific Ocean<\/strong>, where massive earthquakes have hit in the past.<\/li>\n<li>This <strong>underwater subduction zone<\/strong> (nearly 900 km long) where the <strong>Eurasian Plate collides<\/strong> with the <strong>Philippine Sea Plate<\/strong>, pushing the latter under the former and into the Earth\u2019s mantle.<\/li>\n<li><strong>Location:<\/strong> It runs from <strong>Shizuoka<\/strong>, west of Tokyo, to <strong>the southern tip of Kyushu Island<\/strong>.<\/li>\n<li>It has been the site of destructive quakes of magnitude eight or nine every century or two.<\/li>\n<li>These so-called \u201c<strong>megathrust quakes\u201d,<\/strong> which <strong>often occur in pairs<\/strong>, have been known to unleash dangerous tsunamis along Japan\u2019s southern coast.<\/li>\n<\/ul>\n<h2><strong>What is the Subduction Zone?<\/strong><\/h2>\n<ul>\n<li>It is a spot where <strong>two of the planet&#8217;s tectonic plates collide<\/strong> and one dives, or subducts, beneath the other.<\/li>\n<li>Tectonic plates are pieces of the <strong>Earth\u2019s rigid outer layer<\/strong> that slowly move across the planet&#8217;s surface over millions of years.\n<ul>\n<li>This is the main tenet of plate tectonics, the theory that portions of Earth&#8217;s shell glide over the lower mantle, taking continents with them.<\/li>\n<\/ul>\n<\/li>\n<li>Subduction zones occur in <strong>a horseshoe shape<\/strong> around the <strong>edge of the Pacific Ocean<\/strong>, offshore of the USA, <strong>Canada, Russia, Japan, and Indonesia<\/strong>, and down to New Zealand and the southern edge of South America called the &#8220;Ring of Fire,\u201d<\/li>\n<li>These subduction zones comprise \u201cthe most seismically and volcanically active zone in the world, responsible for more than 80% of the world&#8217;s biggest earthquakes and most of the planet\u2019s active volcanoes.<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1: What is an Earthquake?<\/h3>\n<p>An earthquake is the shaking or trembling of the earth&#8217;s surface caused by a sudden release of energy from the interior of the earth.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-sci-tech\/japan-megaquake-advisory-9506703\/\" target=\"_blank\" rel=\"nofollow noopener\"><u>Japan issues its first-ever \u2018megaquake advisory\u2019: What does it mean?<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nankai Trough  is a \u201csubduction zone\u201d between two tectonic plates in the Pacific Ocean, where massive earthquakes have hit in the past.<\/p>\n","protected":false},"author":5,"featured_media":25753,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-25752","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/25752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=25752"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/25752\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/25753"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=25752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=25752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=25752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}