{"id":1674,"date":"2011-10-19T20:17:16","date_gmt":"2011-10-19T20:17:16","guid":{"rendered":"http:\/\/icelandgeology.net\/?p=1674"},"modified":"2011-10-19T20:17:16","modified_gmt":"2011-10-19T20:17:16","slug":"possible-harmonic-tremor-spike-in-katla-volcano-it-might-just-be-the-weather","status":"publish","type":"post","link":"https:\/\/icelandgeology.net\/?p=1674","title":{"rendered":"Possible harmonic tremor spike in Katla volcano (it might just be the weather)"},"content":{"rendered":"<p>With all the <a href=\"http:\/\/en.vedur.is\/weather\/forecasts\/elements\/#type=wind\" target=\"_blank\">bad weather<\/a> in Iceland during the past few days it is hard to be sure on this. But it seems that a harmonic tremor spike is about to start in <a href=\"http:\/\/www.volcano.si.edu\/world\/volcano.cfm?vnum=1702-03=\" target=\"_blank\">Katla volcano<\/a>. So far this spike is rather small from what I can tell at the moment. At the moment it is impossible to know how this develops, if this is a harmonic tremor spike to begin with in Katla volcano.<\/p>\n<p><a href=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/111019_1945.jpeg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/111019_1945.jpeg\" alt=\"\" title=\"111019_1945\" width=\"540\" height=\"642\" class=\"aligncenter size-full wp-image-1675\" srcset=\"https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/111019_1945.jpeg 540w, https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/111019_1945-252x300.jpg 252w\" sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/a><br \/>\nCurrent earthquake activity in Katla volcano. <em>Copyright of this picture belongs to Iceland Met Office.<\/em><\/p>\n<p><a href=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/hvo.19.oktober.2011.19.54.utc_.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/hvo.19.oktober.2011.19.54.utc_.gif\" alt=\"\" title=\"hvo.19.oktober.2011.19.54.utc\" width=\"640\" height=\"480\" class=\"aligncenter size-full wp-image-1676\" srcset=\"https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/hvo.19.oktober.2011.19.54.utc_.gif 640w, https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/hvo.19.oktober.2011.19.54.utc_-300x225.gif 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><br \/>\nCurrent tremor levels in Katla volcano. The harmonic tremor spike can be seen at the end of this plot. <em>Copyright of this picture belongs to Iceland Met Office.<\/em><\/p>\n<p><a href=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/esk.19.oktober.2011.19.54.utc_.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/esk.19.oktober.2011.19.54.utc_.gif\" alt=\"\" title=\"esk.19.oktober.2011.19.54.utc\" width=\"640\" height=\"480\" class=\"aligncenter size-full wp-image-1677\" srcset=\"https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/esk.19.oktober.2011.19.54.utc_.gif 640w, https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/esk.19.oktober.2011.19.54.utc_-300x225.gif 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><br \/>\nThe possible harmonic tremor spike in Katla volcano. <em>Copyright of this picture belongs to Iceland Met Office.<\/em><\/p>\n<p><a href=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/alf.19.oktober.2011.19.53.utc_.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/alf.19.oktober.2011.19.53.utc_.gif\" alt=\"\" title=\"alf.19.oktober.2011.19.53.utc\" width=\"640\" height=\"480\" class=\"aligncenter size-full wp-image-1678\" srcset=\"https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/alf.19.oktober.2011.19.53.utc_.gif 640w, https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/10\/alf.19.oktober.2011.19.53.utc_-300x225.gif 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><br \/>\nThe possible harmonic tremor spike in Katla volcano. <em>Copyright of this picture belongs to Iceland Met Office.<\/em><\/p>\n<p>This might just be bad weather. It is hard to know at the moment. But currently the weather is decent. But there is a new storm coming over Iceland in the next 12 hours or so, at least that is the weather forecast now from what I can gather.<\/p>\n<p>In September over 480 earthquakes where recorded in Katla volcano caldera. But this is the most earthquake activity since at least the year 1999. The largest earthquake in September in Katla volcano was a ML3.4 with the depth of 5.2 km.<\/p>\n<p>More the earthquake activity in Iceland during the month of September.<\/p>\n<p><a href=\"http:\/\/www.vedur.is\/um-vi\/frettir\/nr\/2369\" target=\"_blank\">Jar\u00f0skj\u00e1lftayfirlit \u00ed september 2011<\/a> (Vedur.is, Icelandic, Picture)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>With all the bad weather in Iceland during the past few days it is hard to be sure on this. But it seems that a harmonic tremor spike is about to start in Katla volcano. So far this spike is rather small from what I can tell at the moment. At the moment it is &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/icelandgeology.net\/?p=1674\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Possible harmonic tremor spike in Katla volcano (it might just be the weather)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,10,9,5,64,40,57,85,32],"tags":[],"class_list":["post-1674","post","type-post","status-publish","format-standard","hentry","category-dyke-intrusions","category-earthquakes","category-harmonic-tremors","category-katla-myrdalsjokull","category-magma","category-monitoring","category-swarm","category-tremor-plots","category-volcano"],"_links":{"self":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/1674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1674"}],"version-history":[{"count":1,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/1674\/revisions"}],"predecessor-version":[{"id":1679,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/1674\/revisions\/1679"}],"wp:attachment":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}