An eruption started between Sýlingarfell and Hagafell at 10pm on Monday. An earthquake swarm had started in the magma intrusion north of Grindavík around one hour earlier.Many experts now say the eruption is over - but the Icelandic Met Office urges caution for now
is that the one they were waiting for or a different one?
This is the one they were waiting for. There are several live cams trained on the area, and one of them caught the exact moment it erupted:
https://youtu.be/QcxaqCIon_Y