Category Archives: Grímsvötn / Grímsfjall

Earthquake activity in Þórðarhyrna volcano (Thordarhyrna)

During the night of 3-December-2018 earthquake activity started in Þórðarhyrna volcano (no GVP profile, under Grímsvötn volcano profile). Largest earthquake in this swarm had a magnitude of 2,1 and second largest earthquake had a magnitude of 2,0. Þórðarhyrna volcano is … Continue reading

Posted in Earthquakes, Grímsvötn / Grímsfjall, Magma, Monitoring, Swarm, Volcano, Þórðarhyrna | 2 Comments

Earthquake activity in Grímsvötn (Grímsfjall) volcano

During the night of 23-November-2018 there was an magnitude 3,1 earthquake in Grímsvötn volcano (Grímsfjall). Only one aftershock appeared and it had a magnitude of 0,9. Earthquake activity in Grímsvötn volcano (green star). Copyright of this image belongs to Icelandic … Continue reading

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Earthquake activity in Grímsvötn volcano

During the night there was an earthquake swarm in Grímsvötn volcano. Largest earthquake in this swarm had a magnitude of 2,6 and other earthquakes were smaller in magnitude. Earthquake activity in Grímsvötn volcano. Copyright of this image belongs to Icelandic … Continue reading

Posted in Earthquakes, Grímsvötn / Grímsfjall, Magma, Monitoring, Swarm, Volcano | 2 Comments

Glacier flood starting from Grímsvötn volcano

Glacier flood has started from Grímsvötn volcano. This glacier flood is expected to be small like last few flood that have happened. At this moment I am not expecting an eruption from Grímsvötn volcano. If an eruption does happen I … Continue reading

Posted in Glacier flood, Grímsvötn / Grímsfjall, Monitoring, Volcano | 8 Comments

Slight increase in earthquake activity in Grímsvötn (Grímsfjall) volcano

Over the past few months there has been a slight increase in earthquake activity in Grímsvötn (Grímsfjall) volcano. This increase in activity strongly suggests that Grímsvötn are now in later stages of getting ready for an eruption. Earthquake activity in … Continue reading

Posted in Earthquakes, Grímsvötn / Grímsfjall, Monitoring, Volcano | 9 Comments

Harmonic tremor change close to Grímsfjall volcano

There seems to be a harmonic tremor pulse or a change around Grímsfjall volcano. This might be nothing, but the change appears on several SIL stations around Vatnajökull glacier. The harmonic tremor is strongest on Húsbóndi SIL station and Jökulheimar … Continue reading

Posted in Grímsvötn / Grímsfjall, Harmonic tremors, Monitoring, Volcano, Þórðarhyrna | 33 Comments

Small glacier flood from Grímsfjall caldera lake

On the 18th of August 2016 a small glacier flood started from the Grímsfjall volcano caldera lake. This is a tiny glacier flood according to the news, with the glacier on top of the lake only having dropped around 5 … Continue reading

Posted in Glacier flood, Grímsvötn / Grímsfjall, Monitoring | 18 Comments

Earthquakes between Bárðarbunga and Grímsfjall volcanoes

Today (05-July-2016) at 05:56 UTC an magnitude 3,4 earthquake took place between Bárðarbunga and Grímsfjall volcanoes. The green star is the magnitude 3,4 earthquake between Bárðarbunga and Grímsfjall volcano. Copyright of this image belongs to Iceland Met Office. This earthquake … Continue reading

Posted in Bárðarbunga, Earthquakes, Grímsvötn / Grímsfjall, Monitoring, Volcano | 11 Comments

Grímsfjall volcano preparing for an eruption (also known as Grímsvötn)

On Wednesday 25-May-2016 a small earthquake swarm took place in Grímsfjall volcano (also known as Grímsvötn), none of the earthquakes that took place managed to reach the magnitude 1,0, many of the earthquakes where shallow and might be glacier movement, … Continue reading

Posted in Earthquakes, Grímsvötn / Grímsfjall, Monitoring, Swarm, Volcano | 12 Comments

Earthquake activity in Bárðarbunga and Grímsfjall volcanoes

Yesterday (17-March-2016) an earthquake swarm took place in Bárðarbunga volcano. This is a weekly cycle at the moment in Bárðarbunga volcano so older readers are used to seeing and read about it already. This started in September 2015 (for the … Continue reading

Posted in Bárðarbunga, Dyke intrusions, Earthquakes, Grímsvötn / Grímsfjall, Magma, Monitoring, Swarm, Volcano | 11 Comments