Posted on by Jón Frímann

Changes in the eruption in Fagradalsfjall mountain

This is the short update on the eruption in Fagradalsfjall mountain. That is part of Krýsuvík-Trölladyngja volcano system.

From 22-June to 29-June the eruption in Fagradalsfjall mountain changed. It started to from being stable output of magma to intermittence magma output. That phase lasted from 22-June to 29-June until around 19:30 when activity started to increase again. The magma output seems to have more than doubled based on what I am seeing on the web cameras (when not blinded by fog).

It is unclear but there might have a new crater opened up just south of the main crater. Right next to him and that location is making confirmation on this difficult. There has been splatter activity seen from that location. It is also possible that this crater has already shut down in the latest changes. I don’t know yet.

Some lava fountain activity has been seen on web cameras in the last hour. As the lava activity continues to increase. The flow of lava seems to be increasing from before and is now flowing out on all sides of the crater. That did not happen before. Activity seems to drop to almost nothing between lava flows. If this is permanent or just temporary phase of the eruption I don’t know. This might take weeks to change into stable lava flow again.

It has also been reported in the news that most of the lava flow happens underground and goes directly into the lava field where it collects into lava ponds before it goes into Meradalir, Geldingadalir (already full of lava) or Nátthagi valleys.

7 Replies to “Changes in the eruption in Fagradalsfjall mountain”

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    1. Awesome vid! The longer pause time sees a big build up, then it lets loose. Spectacular eruptions. Geldingadalir is building up quick, and has a huge lava lake.
      Here’s a vid showing the area from “Big Ram” before the fog rolled back in.
      https://www.youtube.com/watch?v=fyE2bbcZLS0

  4. Crater has become quite active this evening July 1, spreading lava on the apron in front of Theater Hill and presumably push more into South Geldingadalir

  6. During the local night, July 1 to July 2, the volcano emitted a storng lava stream continuously for several hours, then began enormous geyser activity with lava erupting to heights as tall as the crater with lava pouring out on all sides. It then became quiet until later in the morning it emitted a very strange dark cloud. This cloud has been captured perfectly by videographer Gutn Tog–
    https://www.youtube.com/watch?v=txgihQnBuPk

    mbl.is has timelapse playlists for their cameras so you can see what transpired once 24 hours of video has been logged–

    https://www.youtube.com/channel/UCpkcJlssp52fP6xHFUYT9ag/playlists

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