Activity continues with another couple of similar sized seismic events yesterday and today:
The following report states that satellites have detected that magma has been rising at Geldingadalir volcano on Fagradalsfjall mountain, and an eruption is believed to be due around 11th January. It says that they can't be sure where (or when) the eruption will happen and that new craters are likely to open up:
Posted on December 30, 2021 by Jón Frímann
Magma on its way up the crust in Fagradalsfjall mountain, last measurements shows 1600 meters left (1,6km)
According to a news on Vísir.is (linked below) the magma has started to rise in Fagradalsfjall mountain. At the time of the measurement from a satellite the magma had around 1600 meters (1,6km) left until it reached the surface. At the speed the magma was travelling, around 130 meters a day an eruption was expected to happen around 11-January-2022. This is the current estimate, but that might change of the magma increases or slows down the speed it is going up in the crust.
It is unclear what area is going to erupt since the new dyke is more alongside the older eruption dyke. There is more chance than less that new craters are going to open up and start erupting, some of the area is under fresh lava from earlier eruption. Making the area look interesting when this eruption starts.
Aðalgígurinn í Fagradalsfjalli fyrr í vikunni. Kvika sást síðast gjósa upp úr honum um miðjan september.
English report: Magma on its way up the crust in Fagradalsfjall mountain, last measurements shows 1600 meters left (1,6km) – Iceland geology
Icelandic report: Kvikan á uppleið en á enn 1.600 metra eftir - Vísir