On the 27-July 2025 at 23:39 UTC an earthquake with magnitude of Mw5,2 took place in Bárðarbunga volcano. A second earthquake with magnitude of Mw3,1 took place at 23:41 UTC. That second earthquake is embedded into the first earthquake and that makes it impossible to see it in earthquake data without good analyse. The largest earthquake was felt in Akureyri, far north of Bárðarbunga volcano.
This is normal earthquake activity as Bárðarbunga volcano continues to inflate. This large earthquake happen every few month in Bárðarbunga volcano.