Category: Geldingadalur

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Update on Geldingadalur in Fagradalsfjall mountain eruption on 21-March-2021

This information is going to get outdated quickly. This article covers Krýsuvík-Trölladyngja volcano. This article is written on 21-March-2021 at at 00:40 UTC.

  • This eruption is tiny. The amount of magma erupted is now around 0.02km3 but this number might not be fully accurate since I’ve not seen any published number about of volume of lava erupted so far.
  • This is unconfirmed but it is possible that an new fissure opened up under the lava field next to the hill side (seen on the web camera, this is on the left side).
  • The current erupting fissure is now about 200 meters long and might be getting shorter.
  • Earthquake activity has almost stopped at the writing of this article.
  • This eruption might only last 1 to 3 days before it stops.
  • There is no sign of deflation in the GPS data at the writing of this article.

There are no other reports about this eruption at current time. This might change without warning.

Web cameras

Beint vefstreymi frá eldstöðvunum – Rúv.is – Live from the eruption.

Beint vefstreymi af eldgosinu – Vogastapi (Rúv.is) – Added 22-March-2021. View from a distance. Should show a red glow from the eruption if the weather isn’t too bad. – This web camera is no longer active!

Update at 15:28 UTC – One side of the main crater collapses

Here is a video of the main crater collapse on one side and give lava a new path for short period of time. At the writing of this update that path for the lava has closed down again.

Gígbarmurinn gefur sig og ný hraunrennslisæð myndast (Rúv.is)

Update at 21:21 UTC

Kvikustreymið braut sér nýja leið (Rúv.is) – This is a new video of the crater collapse that took place at 14:20 today (21-March-2021).

Article updated at 15:29 UTC. New information added.
Article updated at 21:21 UTC. New information added.
Article updated at 03:06 UTC on 22-March-2021. Web camera added.
em>Article updated at 16:34 UTC on 22-March-2021. Web camera has been removed by Rúv – comment added to that web camera.

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Overview of the eruption in Geldingadalur in Fagradalsfjall mountain

This is a short overview of the eruption that is now ongoing in Geldingadalur in Fagradalsfjall mountain area. This is part of Krýsuvík-Trölladyngja volcano system according to latest information. This information might change as the time and more information is collected. This article is written on 20-March-2021 at 02:58 UTC.

  • This is the first eruption in Krýsuvík-Trölladyngja volcano system since the year 1340.
  • The eruption started at 20:45 UTC according to Icelandic Met Office.  The harmonic tremor from the eruption is almost invisible.
  • The fissure is at the writing of this article estimated about to be 1 km long with the direction south-west and north-east.
  • Currently the eruption is small and there is no risk of damage to any infrastructure. Next road (currently closed because of earthquake damage) that might get damaged is 2,5 km distance from the eruption site.
  • This eruption suggests that more eruption might start in different fissures once this eruption is over.
  • The valley that the lava is flowing into might get filled with lava if the eruption lasts long enough. The valley next to it is equally deep so there is no danger of this lava flow.
  • The eruption is in a area that is difficult to access even by a car.

 

The earthquake activity in the dyke between Fagradalsfjalls and Keili. Mostly just minor eartquakes show by red dots
The earthquake activity in the dyke. Copyright of this image belongs to Icelandic Met Office.

The eruption might only last for two to three days as it currently looks but that might change without warning since it is impossible to know for sure what is going to happen next with this eruption.

There are no good web cameras of this eruption since it is remote and started late on Friday night and the weather on Reykjanes peninsula is not good for today (20-March) or tomorrow (21-March).

Updated at 04:49 UTC. Web cameras added to this article.

Rúv – Beint vefstreymi af eldgosinu – Vogastapi
Beint vefstreymi frá eldstöðvunum – Rúv.is – New! This web camera is closest to the eruption.
Road camera 1
Live from Iceland – Keilir
Live from Iceland – Reykjanes

Article updated at 03:49 UTC. Information added. Spell check fixes.
Article updated at 04:52 UTC. Web cameras added.
Article updated at 14:44 UTC. New web camera added from Rúv.