Santorini's volcanic activity increase prompted Civil Protection Minister Kikilias to meet officials. The tourist destination, famous for whitewashed houses and blue-domed churches, shows caldera activity along the Hellenic Volcanic Arc.
Seismologist Lekkas describes the volcano as a living organism, noting 20,000-year major eruption cycles. The last significant eruption was in 1950, following 1620 BC's civilization-altering event.