{"id":55252,"date":"2021-03-06T18:16:21","date_gmt":"2021-03-06T22:16:21","guid":{"rendered":"http:\/\/stateofthenation.co\/?p=55252"},"modified":"2021-03-06T18:16:21","modified_gmt":"2021-03-06T22:16:21","slug":"now-theres-an-earthquake-swarm-under-oregons-dormant-volcano","status":"publish","type":"post","link":"https:\/\/stateofthenation.co\/?p=55252","title":{"rendered":"Now there&#8217;s an earthquake swarm under Oregon&#8217;s dormant volcano."},"content":{"rendered":"<h1>Burst-like swarm of earthquakes under dormant Oregon volcano triggers fears of &#8216;uptick&#8217; in activity<\/h1>\n<p><!--more-->Svetlana Ekimenko<br \/>\nSputnik<\/p>\n<div class=\"article-image-large to-center\"><a title=\"\u00a9 Creative Commons\" href=\"https:\/\/www.sott.net\/image\/s30\/601210\/full\/1082262648_0_0_1280_693_1000x0.jpg\" target=\"_blank\" rel=\"ibox&amp;ignore_target=true noopener\"><img decoding=\"async\" title=\"Click to enlarge\" src=\"https:\/\/www.sott.net\/image\/s30\/601210\/large\/1082262648_0_0_1280_693_1000x0.jpg\" alt=\"Mt. Hood oregon\" border=\"0\" \/><\/a><\/p>\n<div class=\"image-caption\"><span class=\"tiny\">\u00a9 Creative Commons<\/span><br \/>\n<span class=\"caption\">Mt. Hood, Oregon, USA<\/span><\/div>\n<\/div>\n<p>A succession of minor earthquakes were registered at 12:13 p.m. on 1 March about three to four miles beneath the summit of Mount Hood, Oregon, which is currently a dormant volcano. The Pacific Northwest Seismic Network measured eight quakes with a maximum magnitude of 1.3.<\/p>\n<p>A &#8216;swarm&#8217; of minor earthquakes occurred beneath the summit of Oregon&#8217;s Mount Hood this week, with some speculating whether this might be a warning signal of bigger things to come.<\/p>\n<p>The minor quakes &#8211; all were too small to be felt at the surface &#8211; began at 12:13 p.m. on 1 March, about three to four miles beneath the summit of the dormant volcano, lasting for about 45 minutes.<\/p>\n<p>Eight quakes measured a maximum magnitude of 1.3, according to the Pacific Northwest Seismic Network, with dozens of other tremors too small to locate.<\/p>\n<p>To allay concerns, the US Geological Survey wrote on Facebook on 3 March that while an earthquake swarm &#8216;isn&#8217;t a common occurrence&#8217;, it need not necessarily be taken as an indication that the &#8216;volcano is about to erupt&#8217;.<\/p>\n<p><span class=\"BoldGrey\">&#8216;Uptick in Activity&#8217;<\/span><\/p>\n<p>Earlier in the year, another burst-like swarm of more than 100 earthquakes occurred south of Mount Hood&#8217;s summit.<\/p>\n<p>Packing a maximum magnitude of 2.7 and centred about three miles down, the tremors registered on 17 January had raised concerns about the status of the volcano.<\/p>\n<p>Geologists conceded that the swarm is considered an &#8220;uptick&#8221; in activity of Mount Hood&#8217;s background seismicity, yet ruled out that an eruption might be imminent.<\/p>\n<div class=\"article-image-large to-center\"><a href=\"https:\/\/www.sott.net\/image\/s14\/298090\/full\/a_763x666.gif\" target=\"_blank\" rel=\"ibox&amp;ignore_target=true noopener\"><img decoding=\"async\" title=\"Click to enlarge\" src=\"https:\/\/www.sott.net\/image\/s14\/298090\/large\/a_763x666.gif\" alt=\"Volcanoes cascadia zone\" border=\"0\" \/><\/a><\/div>\n<p>Researchers also pointed to similar swarms seen occasionally at other Cascade Mountain peaks, such as Mount Rainier, Mount St. Helens, and Lassen Peak in California.<\/p>\n<p>As to the causes of the earthquake swarms, the USGS stated that movement of pressurised, super-heated water along existing preexisting faults might be responsible, and not magma.<\/p>\n<p>___<br \/>\n<a href=\"https:\/\/www.sott.net\/article\/449686-Burst-like-swarm-of-earthquakes-under-dormant-Oregon-volcano-triggers-fears-of-uptick-in-activity\">https:\/\/www.sott.net\/article\/449686-Burst-like-swarm-of-earthquakes-under-dormant-Oregon-volcano-triggers-fears-of-uptick-in-activity<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Burst-like swarm of earthquakes under dormant Oregon volcano triggers fears of &#8216;uptick&#8217; in activity<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-55252","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/stateofthenation.co\/index.php?rest_route=\/wp\/v2\/posts\/55252","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stateofthenation.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stateofthenation.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stateofthenation.co\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stateofthenation.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=55252"}],"version-history":[{"count":0,"href":"https:\/\/stateofthenation.co\/index.php?rest_route=\/wp\/v2\/posts\/55252\/revisions"}],"wp:attachment":[{"href":"https:\/\/stateofthenation.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=55252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stateofthenation.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=55252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stateofthenation.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=55252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}