{"id":2220,"date":"2012-02-19T19:59:46","date_gmt":"2012-02-19T19:59:46","guid":{"rendered":"http:\/\/icelandgeology.net\/?p=2220"},"modified":"2012-02-19T19:59:46","modified_gmt":"2012-02-19T19:59:46","slug":"harmonic-tremor-pulse-in-katla-volcano-3","status":"publish","type":"post","link":"https:\/\/icelandgeology.net\/?p=2220","title":{"rendered":"Harmonic tremor pulse in Katla volcano"},"content":{"rendered":"

Today there was an harmonic tremor pulse in Katla volcano<\/a>. I am not sure when this harmonic tremor pulse did start. But I am guessing around 15:22 UTC or maybe around 16:00 UTC. It seems that this harmonic tremor pulse was small, considering the activity in July 2011 in Katla volcano (an minor eruption). This harmonic tremor pulse seems to have happened in the north part of Katla volcano, outside the caldera from my best estimates but might well be inside it in the north part of it. But it hard to be sure on that detail. From what I can tell, this harmonic tremor pulse does not appear on my geophones clearly. But it might have appeared on Hekla geophone poorly. But it is hard to be sure on that due to wind noise. When this is written the harmonic tremor pulse appears to be dying down. But there is still an possibly that it might pick up again or an new one might start without warning. It is impossible to know for sure how long this is going to stop after this harmonic tremor pulse. This harmonic tremor pulse is due to dike intrusion in Katla volcano at depth, so earthquakes might not happen until it reaches shallower surface in the crust. If the dike intrusion gets that far to start with.<\/p>\n

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\nThe possible location of the harmonic tremor marked by the poorly located earthquake in Katla volcano. Copyright of this image belongs to IMO (Iceland Met Office).<\/em><\/p>\n

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\nThe harmonic tremor on the Slysaalda SIL station where it is the strongest. But that means it is closest to this SIL station. Copyright of this image belongs to IMO (Iceland Met Office).<\/em><\/p>\n

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\nThe harmonic tremor pulse on Go\u00f0abunga SIL station. The harmonic tremor pulse is weaker here then on Slysaalda SIL station. Copyright of this image belongs to IMO (Iceland Met Office).<\/em><\/p>\n

\"\"<\/a>
\nThe harmonic tremor pulse on Skrokkalda SIL station. One of the SIL station that have the most distance from Katla volcano area where the tremor pulse is taking place. Copyright of this image belongs to IMO (Iceland Met Office).<\/em><\/p>\n

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\nThe harmonic tremor pulse can clearly be seen on L\u00e1gu Hvolar SIL station. Copyright of this image belongs to IMO (Iceland Met Office).<\/em><\/p>\n

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\nThe harmonic tremor on Smj\u00f6rgil SIL station, it is located in the flanks of Eyjafjallaj\u00f6kull volcano. This SIL station is close to Go\u00f0abunga SIL station. Copyright of this image belongs to IMO (Iceland Met Office).<\/em><\/p>\n

What happens next in Katla volcano is hard to know. It all comes down to wait and see what happens next in Katla volcano. Eruptions in Katla volcano in January – February time period are not common, but due happen at times. So this harmonic tremor pulse might be an advance warning of what is to come. But that is just speculation<\/strong> on my part. It is impossible to know for sure what happens in Katla volcano until it happens.<\/p>\n","protected":false},"excerpt":{"rendered":"

Today there was an harmonic tremor pulse in Katla volcano. I am not sure when this harmonic tremor pulse did start. But I am guessing around 15:22 UTC or maybe around 16:00 UTC. It seems that this harmonic tremor pulse was small, considering the activity in July 2011 in Katla volcano (an minor eruption). This … <\/p>\n

Continue reading “Harmonic tremor pulse in Katla volcano”<\/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":[24,9,38,5,64,40,32],"tags":[],"class_list":["post-2220","post","type-post","status-publish","format-standard","hentry","category-dyke-intrusions","category-harmonic-tremors","category-iceland","category-katla-myrdalsjokull","category-magma","category-monitoring","category-volcano"],"_links":{"self":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/2220","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=2220"}],"version-history":[{"count":1,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/2220\/revisions"}],"predecessor-version":[{"id":2227,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/2220\/revisions\/2227"}],"wp:attachment":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}