Category Archives: Grímsvötn / Grímsfjall

Earthquake swarm east of Grímsey (TFZ) and in Grímsfjall volcano fissure swarm

Posted on February 28, 2013 by Jón Frímann

Currently there is a minor earthquake swarm east of Grímsey Island in the Tjörnes Fracture Zone. So far the largest earthquake has had the magnitude of 2.9 according to Icelandic Meteorological Office reviewed earthquake overview. Earthquake swarms are … Continue reading →

Posted in Earthquakes, Grímsvötn / Grímsfjall, Hamarinn, Swarm, TFZ, Volcano | 5 Comments

Comparison of volcano eruptions

Posted on January 17, 2013 by Jón Frímann

When there is nothing going on in Iceland. It is good to prepare for the future by checking out what has happened in the past. Here is a comparison of harmonic tremor data from few past eruptions. I … Continue reading →

Posted in Eyjafjallajökull, Glacier flood, Grímsvötn / Grímsfjall, Harmonic tremors, History, Katla / Mýrdalsjökull, Magma, Monitoring, Tremor plots, Volcano | Comments Off

Harmonic tremor level drops in Grímsfjall volcano

Posted on November 27, 2012 by Jón Frímann

During the night. Harmonic tremor levels started to drop in Grímsfjall volcano. The reason for this harmonic tremor level increase remain unknown and unclear. But no volcano related activity has been seen or recorded so far in Grímsfjall … Continue reading →

Posted in Earthquakes, Glacier flood, Grímsvötn / Grímsfjall, Harmonic tremors, Hydrothermal, Monitoring, Volcano | Comments Off

Unclear what is going on in Grímsfjall volcano

Posted on November 26, 2012 by Jón Frímann

It is unclear what is going on in Grímsfjall volcano at this moment. Harmonic tremor level continue to rise. They are currently way above what is normal for minor glacier floods from Grímsfjall volcano. This might be a … Continue reading →

Posted in Glacier flood, Grímsvötn / Grímsfjall, Harmonic tremors, Hydrothermal, Magma, Mountain, Volcano | 17 Comments

Glacier flood from Grímsfjall volcano continues to increase [Update]

Posted on November 25, 2012 by Jón Frímann

Current glacier flood from Grímsfjall volcano continues to grow in size. To everyone surprise I think. Currently the glacier flood remains small. Harmonic tremor on Grímsfjall SIL station continues to grow. But this is due to the glacier … Continue reading →

Posted in Glacier flood, Grímsvötn / Grímsfjall, Volcano | 5 Comments

Minor glacier flood has started from Grímsfjall volcano glacier lake

Posted on November 22, 2012 by Jón Frímann

A minor glacier flood has started from Grímsfjall volcano glacier lake. This glacier flood is expected to be extremely small. Since last glacier flood from Grímsfjall volcano took place earlier this year. That glacier flood was also small. … Continue reading →

Posted in Glacier flood, Grímsvötn / Grímsfjall, Hydrothermal, Monitoring, Volcano | 4 Comments

Earthquake activity east of Grímsey Island (TFZ). Possible fake earthquakes in Eyjafjallajökull volcano

Posted on October 1, 2012 by Jón Frímann

At 03:03 UTC an earthquake with the early and unconfirmed magnitude of ML3.3 took place east of Grímsey Island. This earthquake did take place on TFZ. It is possible, but this earthquake might be the start of an … Continue reading →

Posted in Earthquakes, Eyjafjallajökull, Grímsvötn / Grímsfjall, Monitoring, Swarm, TFZ, Volcano | Comments Off

Possible glacier flood from Grímsfjall/Grímsvötn glacier lake (Unconfirmed)

Posted on June 17, 2012 by Jón Frímann

There seems to be a glacier flood did start this morning in Grímsfjall glacier lake. Based on the tremor, the glacier flood is already subsiding or something of that nature. So far this glacier flood has not yet … Continue reading →

Posted in Glacier flood, Glacier quakes, Grímsvötn / Grímsfjall, Harmonic tremors, Unconfirmed, Volcano | 12 Comments

New pictures of Grímsfjall volcano crater

Posted on June 5, 2012 by Jón Frímann

Rúv News has just published pictures of Grímsfjall volcano craters. This pictures where taken by Ómar Ragnarsson. The pictures show among them a Island that has formed inside the 1.5 km long and 800 meter wide crater that … Continue reading →

Posted in Grímsvötn / Grímsfjall, Pictures, Volcano | 52 Comments

Craters in Grímsfjall volcano clearly visible

Posted on June 2, 2012 by Jón Frímann

The craters from last years eruption in Grímsfjall volcano are clearly visible on new pictures that Rúv did release in the evening news. There also seems to be some increase in hydro-thermal activity in Grímsfjall volcano. Based on … Continue reading →

Posted in Grímsvötn / Grímsfjall, Hydrothermal, Video, Volcano | 11 Comments