{"id":6756,"date":"2017-04-06T17:31:32","date_gmt":"2017-04-06T17:31:32","guid":{"rendered":"http:\/\/icelandgeology.net\/?p=6756"},"modified":"2017-04-07T21:33:03","modified_gmt":"2017-04-07T21:33:03","slug":"strong-earthquake-swarm-in-bardarbunga-volcano-4","status":"publish","type":"post","link":"https:\/\/icelandgeology.net\/?p=6756","title":{"rendered":"Strong earthquake swarm in B\u00e1r\u00f0arbunga volcano"},"content":{"rendered":"

Today (6-April-2017) a strong earthquake activity took place in B\u00e1r\u00f0arbunga<\/a> volcano. This earthquake activity started this morning at 10:46 UTC and has continued during the day at slow phase. The largest earthquake so far took place at 15:08 UTC and had magnitude of 4,1 and second largest earthquake had a magnitude of 3,2. Other earthquakes are smaller and a around dozen or so have taken place today in B\u00e1r\u00f0arbunga volcano.<\/p>\n

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\nThe earthquake swarm in B\u00e1r\u00f0arbunga volcano. Copyright of this image belongs to Icelandic Met Office.<\/em><\/p>\n

This earthquake activity is in line with earlier earthquake activity that has been going on in this area since September-2015. What is slightly different now is that I got two different seismic signals on my geophone stations in B\u00f6\u00f0varsh\u00f3lar and the one in Heklubygg\u00f0 on the North-South direction (Heklubygg\u00f0 is west-south of B\u00e1r\u00f0arbunga, B\u00f6\u00f0varsh\u00f3lar is west-north of B\u00e1r\u00f0arbunga). This difference seems to suggest that some type of slip movement took place during this earthquake. I don’t know for sure what this change in pattern means at the moment. The best I can do now is to monitor the earthquakes I detect in the future for more such earthquake signal changes like I did just see on my geophone. I’m not fully sure what is going on in B\u00e1r\u00f0arbunga volcano at the moment, what is known is that inflation is currently taking place in B\u00e1r\u00f0arbunga volcano and that process has been ongoing since September-2015.<\/p>\n

Update 07.04.2017 – Anomaly detected on my B\u00f6\u00f0varsh\u00f3lar geophone<\/strong><\/p>\n

This is the anomaly detected on my B\u00f6\u00f0varsh\u00f3lar geophone. It can be seen on N-S direction. This is not the geophone, its working as expected and that got confirmed today when a minor (magnitude 2,1) earthquake took place not far from the B\u00f6\u00f0varsh\u00f3lar geophone.<\/p>\n

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\nB\u00f6\u00f0varsh\u00f3lar geophone.<\/p>\n

\"\"<\/a>
\nHeklubygg\u00f0 geophone.<\/p>\n

\"\"<\/a>
\nDetailed image of the earthquake at B\u00f6\u00f0varsh\u00f3lar geophone.<\/p>\n

\"\"<\/a>
\nDetailed image of the earthquake in Heklubygg\u00f0 geophone.<\/p>\n

The difference is appearance of the P-wave and the S-wave. I don’t know why this is or why it happened. I’ve not seen this before.<\/p>\n

Donations<\/strong><\/p>\n

Please remember to support my work with donations. Thanks for the support. \ud83d\ude42<\/p>\n

Article updated at 21:32 UTC on 07.04.2017.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Today (6-April-2017) a strong earthquake activity took place in B\u00e1r\u00f0arbunga volcano. This earthquake activity started this morning at 10:46 UTC and has continued during the day at slow phase. The largest earthquake so far took place at 15:08 UTC and had magnitude of 4,1 and second largest earthquake had a magnitude of 3,2. Other earthquakes … <\/p>\n

Continue reading “Strong earthquake swarm in B\u00e1r\u00f0arbunga 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":[7,10,64,40,57,32],"tags":[],"class_list":["post-6756","post","type-post","status-publish","format-standard","hentry","category-bararbunga","category-earthquakes","category-magma","category-monitoring","category-swarm","category-volcano"],"_links":{"self":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/6756","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=6756"}],"version-history":[{"count":4,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/6756\/revisions"}],"predecessor-version":[{"id":6765,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/6756\/revisions\/6765"}],"wp:attachment":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}