Nearly 8,000 earthquakes have shaken Greece’s Santorini island since late January, prompting authorities to declare a state of emergency. Approximately 11,000 people were evacuated due to the tremors, unrelated to volcanic activity and caused by tectonic shifts in the Aegean Sea. Nearly 8,000 earthquakes have shaken Greece’s Santorini island since late January, prompting authorities to declare a state of emergency. Approximately 11,000 people were evacuated due to the tremors, unrelated to volcanic activity and caused by tectonic shifts in the Aegean Sea. Economic Times