Sounds scary, hope it doesn’t get worse.
I cruised the Greek Islands decades ago. Santorini is probably the most beautiful, hope it stays that way.
In 2011 there was a seismic swarm off Greece that went on for months.
More here...
https://academic.oup.com/gji/article/194/3/1302/649089
I studied there in college and it was beyond gorgeous. History practically in every square inch - it was beautiful and haunting.