|Earthquake swarm between 28 and 30 April southwest of Santorini (Inst. of Geodynamics).|
During the past weeks, Santorini has been relatively calm. A few earthquakes occurred mainly SW and NE of the island recently, showing that unrest continues. Notably another small seismic swarm occurred in the area of the early January swarm at a tectonic fault line located 50 km SW of the island between 28 and 30 April. The quakes were at depths around 5-15 km and included 3 quakes around magnitude 3, the largest quake being a 3.7 magnitude at 10 km depth on 30 April. - Volcano Discovery.