I’ve been trying to wait for information about the activity in Grímsfjall volcano. A new cauldron was discovered yesterday (05-December-2021). It is possible that an small eruption took place in the side of Grímsfjall volcano and didn’t break the glacier. It might have been a short eruption if that is what happened. Harmonic tremor data is unclear on this so I can’t give any good answer. At 06:16 UTC an earthquake with magnitude of Mw3,6 took place. I poorly recorded it my seismometer and it seems to have been a low period earthquake. Suggesting that a magma pushing up was the reason this earthquake happened.
Continue reading “Earthquake with magnitude Mw3,6 in Grímsfjall volcano, no eruption yet”
Glacier flood starting from Grímsfjall volcano
It was announced today (24-November-2021) that Grímsvötn lake in Grímsfjall volcano is about to start. It is going to take the glacier flood few hours to days to get to the glacier rivers that flow south of Vatnajökull glacier.
This also risks an eruption starting in Grímsfjall volcano. If that actually happens remains to be seen. Last glacier flood in Grímsvötn lake was in 2018, but that did not result in a eruption.