Cauldron in Öræfajökull volcano continues to get deeper and wider

Latest news of the cauldron that has formed in Öræfajökull volcano is not good. According to the news on mbl.is the cauldron got larger by 20 meters over a 9 day time period. Current shape of the cauldron now is close to the one of water droplet (according to the news). The hydrothermal activity is expanding to the south at the moment.


Current earthquake activity in Öræfajökull volcano. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity in Öræfajökull volcano is constant, sometimes bad weather is preventing detection of earthquakes. There has been a small increase in magnitude of earthquakes being detected at the moment that change is not large as most earthquakes are below magnitude 1,0.

Icelandic News (in English)

Öræfajökull caldera has deepened considerably (mbl.is)

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This entry was posted in Hydrothermal, Magma, Monitoring, Öræfajökull, Volcano. Bookmark the permalink.

17 Responses to Cauldron in Öræfajökull volcano continues to get deeper and wider

  1. Z says:

    Conductivity in Múlakvisl popped back up to over 300 Microsiemens/s over night. It correlates well with increased water level, so it shouldn’t be mud on the sensor.
    https://i.imgur.com/iPgNnT0.png

  2. AM says:

    Is there any webcam for Öraefajökull?

  3. EB says:

    They say that there is Magma on the move from 2-6 Km 2000+ Meters, that is from the top Hvannadalshnjúkur and to sea level……It takes a lot of heat and magma to melt all that old glacier ice in this short time.
    http://www.almannavarnir.is/frettir/fundur-visindarads-almannavarna-7-12-2017/

  4. Jón, with changes of this nature and at this speed how long would you think before major issue requiring evacuation happens?

  5. Klaus says:

    google translate recognizes Icelandic and translated this:
    Meeting of the Scientific Advisory Council on Civil Protection 7.12.2017
    December 7, 2017, 17:31
    Today a meeting was held in the Scientific Council on Civil Protection of Öræfajökull. The results of the meeting are as follows:

    During the past week, small earthquakes that have occurred in Öræfajökull have increased. Last week there were 160 mini-jokes. So many earthquakes have not been detected there before.
    The earthquakes are predominantly dispersed in and around the top 10 km of the Earth’s crust.
    The latest measurements of the seabed in the Öræfajökull caldera show that it continues to deepen and expand in accordance with sustained increased geothermal activity and that water drains from the boiler.
    Measurements in Skaftafellsá, Virkisá, Kotá and Kvíá show insignificant changes in recent weeks. Measurement of conductivity and chemical composition shows that geothermal water is present in Kvíá.
    Further interpretation of the measurements of last year’s crust changes shows small amounts on the southern jetty of the glacier.
    Scenarios and measurements in the area indicate a small particle penetration of about 2-6 km depth below the mountain.
    Over the last few weeks, monitoring at Öræfajökull has been greatly increased, watermarks, earthquake meters, and GPS GPS devices as well as some webcams have been added. Research on the ground has been increased.
    Last updated: December 7, 2017 at 17:31

  6. Gizmo says:

    What’s under the ice of Öræfajökull ?
    A paper by the University of Iceland. Worth reading:
    http://earthice.hi.is/sites/earthice.hi.is/files/Pdf_skjol/grein_jokull64_eyjolfur_magnusson_et_al_e2015.pdf

    (sorry if posted already)

  7. Here is an interesting article about the evolution of stratovolcano eruptions on Earth magazine shared by the University of Iceland Volcanology and Natural Disaster Group. They add that Öræfajökull is possibly on Stage 2 of the erupting phase described in the article.

    https://www.earthmagazine.org/node/21527

  8. One comment that was and is total nonsense moved from view.

  9. Dr D says:

    1. Is anyone aware of an available image of the cauldron–even a graph–of the cauldron in profile. That is, showing the depth of the cauldron relative to the nearby surface of the ice cap and then the depth of the depression and then the distance between the bottom of the depression to the bedrock or soil of the volcano?

    This link had some good graphics that would be great to compare side by side with an image like I tried to describe above.

    2. I don’t recall seeing an image showing the current or most likely water runoff or flood-water routes as the heat increases. Is there such an image available?

    3. Thanks for all you do, Jon. I trust you are keeping yourself safe, fed and healthy!

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