Yesterday (12. August 2023) an small earthquake swarm took place in Hofsjökull volcano. Largest earthquake had a magnitude of Mw3,0 and the second largest earthquake had a magnitude of Mw2,5. The area is remote and there are no reports of this earthquakes being felt.
According to Morgunblaðið news there where report of smelling gas after this earthquake activity. There is a risk of gas pockets around Hofsjökull volcano, probably mostly to the north in the area closest to the earthquake area.
I don’t have any other information about Hofsjökull volcano. Because it last erupted more than 12.000 years ago. At most there might have been smaller eruptions that resulted in lava flows sometimes in the last 12.000 years. I don’t expect an eruption now, this earthquake activity might signal a long term change in Hofsjökull volcano. How long that is going to be is anyone guess. It might be in the next 100 to 500 years or maybe never. Hofsjökull volcano is on its own rift zone that is slowly dying off. Along with Kerlingafjöll volcano to the south of Hofsjökull volcano. This are the only two (?) active volcanoes on this old dying rift zone (its around 5 to 10 million years old).