{"id":2845,"date":"2012-08-25T16:48:23","date_gmt":"2012-08-25T14:48:23","guid":{"rendered":"http:\/\/icelandgeology.net\/?p=2845"},"modified":"2012-08-25T16:54:28","modified_gmt":"2012-08-25T14:54:28","slug":"glacier-flood-has-started-from-west-skaftarketill-cauldron","status":"publish","type":"post","link":"https:\/\/icelandgeology.net\/?p=2845","title":{"rendered":"Glacier flood has started from west Skaft\u00e1rketill cauldron in Vatnaj\u00f6kull glacier"},"content":{"rendered":"

Yesterday an glacier flood started form west Skaft\u00e1rketill cauldron. But that is an hydro-thermal area inside Hamarinn volcano (B\u00e1r\u00f0arbunga volcano<\/a> system). The glacier flood is expected to be small. Last year in July there was also an glacier flood from this area of Vatnaj\u00f6kull glacier. But that was due to minor eruption in this area (it was poorly documented by scientists. I do not know why that is). But now it is melt-water from hydro-thermal area that is causing this glacier flood. <\/p>\n

But glacier floods like this happen every 1 to 3 years from this area. Following this glacier flood an swarm of glacier-quakes have been detected in this part of Vatnaj\u00f6kull glacier. Flood in western Skaft\u00e1rkatli might trigger a glacier flood in the eastern skaft\u00e1rkatli cauldron. But it is not known if that is actually going to happen this time. It is not expected that current glacier flood is going to be a large one. But there is an risk of Hydrogen sulfide poisoning if people are close the glacier river during the glacier flood. So it is not recommend to go close to the glacier river due to this risk. The glacier flood is expected to appear from under Vatnaj\u00f6kull glacier in the next 5 to 6 hours. It is expected to last around 2 to 3 days at most.<\/p>\n

\"\"<\/a>
\nGlacier quakes in Vatnaj\u00f6kull glacier following this glacier flood. This glacier quakes are not strong and do not show up on automatic SIL system. Copyright of this picture belongs to Icelandic Meteorological Office.<\/em><\/p>\n

\"\"<\/a>
\nGlacier quake activity as it appears on SIL seismometers around Vatnaj\u00f6kull glacier. Copyright of this picture belongs to Icelandic Meteorological Office.<\/em><\/p>\n

\"\"<\/a>
\nGlacier quake activity as it appears on SIL seismometers around Vatnaj\u00f6kull glacier. Copyright of this picture belongs to Icelandic Meteorological Office.<\/em><\/p>\n

\"\"<\/a>
\nGlacier quake activity as it appears on SIL seismometers around Vatnaj\u00f6kull glacier. Copyright of this picture belongs to Icelandic Meteorological Office.<\/em><\/p>\n

\"\"<\/a>
\nClick on this image for full size. This plot here shows output from several SIL stations. This image was released by Icelandic Meteorological Office today. Copyright of this picture belongs to Icelandic Meteorological Office.<\/em><\/p>\n

It is believed that sometimes following this type of glacier floods from this area in Vatnaj\u00f6kull glacier there are small eruptions, or steam events as the pressure on the hydro-thermal system drops . That in turns allows for some magma movement that is powering the hydro-thermal system in this area of Vatnaj\u00f6kull glacier. It is impossible to know for sure if that is going to happen now. But it is good idea to keep an eye-out for such events taking place in Hamarinn volcano. Given the minor eruption that took place there last year.<\/p>\n

Here is an comparison of the events that took place last year compared to the events that are currently taking place in Hamarinn volcano.<\/p>\n

\"\"<\/a>
\nHarmonic tremor subsiding from Hamarinn volcano on 13. July 2011. The following glacier flood appears clearly on this tremor plot from Icelandic Meteorological Office. Copyright of this picture belongs to Icelandic Meteorological Office.<\/em><\/p>\n

I was seeing activity to November 2011 after the activity in July 2011.<\/p>\n

\"\"<\/a>
\nOne of the last harmonic tremor activity that I did see in Hamarinn volcano during the year 2011. But this took place on 7. November 2011. After this point it did go quiet. Copyright of this picture belongs to Icelandic Meteorological Office.<\/em><\/p>\n

I do not expect any volcano eruption in Hamarinn volcano at this point. But such things are impossible to know for sure. As Hamarinn volcano has not been studied in details until after the year 2011 eruption.<\/p>\n

Icelandic news about this glacier flood<\/strong><\/p>\n

Hlaup hafi\u00f0 \u00ed Skaft\u00e1<\/a> (R\u00fav.is)
\nVer\u00f0ur v\u00e6ntanlega ekki miki\u00f0 hlaup<\/a> (R\u00fav.is)
\nHlaup a\u00f0 hefjast \u00ed Skaft\u00e1<\/a> (V\u00edsir.is)
\nAldrei veri\u00f0 jafnflj\u00f3tir a\u00f0 sj\u00e1 hlaupi\u00f0<\/a> (V\u00edsir.is)
\nSkaft\u00e1rhlaup hafi\u00f0<\/a> (mbl.is)<\/p>\n","protected":false},"excerpt":{"rendered":"

Yesterday an glacier flood started form west Skaft\u00e1rketill cauldron. But that is an hydro-thermal area inside Hamarinn volcano (B\u00e1r\u00f0arbunga volcano system). The glacier flood is expected to be small. Last year in July there was also an glacier flood from this area of Vatnaj\u00f6kull glacier. But that was due to minor eruption in this area … <\/p>\n

Continue reading “Glacier flood has started from west Skaft\u00e1rketill cauldron in Vatnaj\u00f6kull glacier”<\/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":[33,52,12,57],"tags":[],"class_list":["post-2845","post","type-post","status-publish","format-standard","hentry","category-glacier-flood","category-glacier-quakes","category-hamarinn","category-swarm"],"_links":{"self":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/2845","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=2845"}],"version-history":[{"count":6,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/2845\/revisions"}],"predecessor-version":[{"id":2857,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=\/wp\/v2\/posts\/2845\/revisions\/2857"}],"wp:attachment":[{"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icelandgeology.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}