Bárðarbunga volcano has been expanding and it could be due to magma accumulation or recovery from its last eruption in 2015. Geophysicist Páll Einarsson told Morgunblaðið that recent powerful earthquakes underneath the volcano are likely due to land rise. An eruption is not imminent, however.
Two earthquakes measuring M3.9 and 4.5 occurred at the volcano site two days ago, according to the Icelandic Met Office. According to Páll, it’s difficult to say what the activity could indicate in a larger context. If Bárðarbunga is preparing for an eruption, then the earthquakes would be a sign of that. An eruption is not, however, expected in the near future.
Bárðarbunga is a stratovolcano located underneath Iceland’s largest glacier, Vatnajökull. The volcano’s last eruption was the Holuhraun eruption in 2014-2015.