Ground movement in southwest Iceland over the last month or so. They've had 1400 earthquakes in the last day. It's not clear exactly how worrying this is, but it's clearly not great.

"The most likely scenario now, taking into account the activity that culminated in the onset of the March 19th 2021, is that it will take several days (rather than hours) for magma to reach the surface."

https://en.vedur.is/about-imo/news/a-seismic-swarm-started-north-of-grindavik-last-night