{"id":1467,"date":"2011-09-09T00:01:58","date_gmt":"2011-09-09T00:01:58","guid":{"rendered":"http:\/\/icelandgeology.net\/?p=1467"},"modified":"2011-09-09T00:01:58","modified_gmt":"2011-09-09T00:01:58","slug":"more-harmonic-tremors-in-katla-volcano","status":"publish","type":"post","link":"https:\/\/icelandgeology.net\/?p=1467","title":{"rendered":"More harmonic tremors in Katla volcano"},"content":{"rendered":"<p>It seems that <a href=\"http:\/\/www.volcano.si.edu\/world\/volcano.cfm?vnum=1702-03=\" target=\"_blank\">Katla volcano<\/a> is not as quiet it seems to be. For the moment the harmonic tremor seems to be small and only properly observable on one SIL station due to how weak it is at current time. So far two harmonic spikes have happened. This is most likely a hydrothermal system going crazy under the glacier close to L\u00e1gu Hvolar SIL station, rather then magma on the move (or at least that is what I think).<\/p>\n<p><a href=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/09\/hvo.8.sept_.2011.22.09.utc_.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/09\/hvo.8.sept_.2011.22.09.utc_.gif\" alt=\"\" title=\"hvo.8.sept.2011.22.09.utc\" width=\"640\" height=\"480\" class=\"aligncenter size-full wp-image-1468\" srcset=\"https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/09\/hvo.8.sept_.2011.22.09.utc_.gif 640w, https:\/\/icelandgeology.net\/wp-content\/uploads\/2011\/09\/hvo.8.sept_.2011.22.09.utc_-300x225.gif 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><br \/>\nHarmonic tremor at L\u00e1gu Hvolar SIL station. The harmonic tremor can be seen at the end of this tremor plot. <em>Copyright of this picture belongs to Iceland Met Office.<\/em><\/p>\n<p>There has not been a lot of earthquake activity in Katla volcano during the last 24 hours or so. But that might not mean anything, as eruption can and have started without any warning at all (example: <a href=\"http:\/\/www.volcano.si.edu\/world\/volcano.cfm?vnum=1703-01=\" target=\"_blank\">Gr\u00edmsv\u00f6tn volcano<\/a> May 2011). So for now, it is more wait and see and more waiting it seems.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>It seems that Katla volcano is not as quiet it seems to be. For the moment the harmonic tremor seems to be small and only properly observable on one SIL station due to how weak it is at current time. So far two harmonic spikes have happened. This is most likely a hydrothermal system going &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/icelandgeology.net\/?p=1467\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;More harmonic tremors in Katla volcano&#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":[24,10,9,41,5,64,40,32],"tags":[],"class_list":["post-1467","post","type-post","status-publish","format-standard","hentry","category-dyke-intrusions","category-earthquakes","category-harmonic-tremors","category-hydrothermal","category-katla-myrdalsjokull","category-magma","category-monitoring","category-volcano"],"_links":{"self":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/1467","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=1467"}],"version-history":[{"count":1,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/1467\/revisions"}],"predecessor-version":[{"id":1469,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/1467\/revisions\/1469"}],"wp:attachment":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}