Santorini Eruption of 1925

Santorini, a medieval Italian corruption of Sant’Irene, the patron saint of Thera, is the name given to a small group of volcanic islands, almost the southernmost of the Grecian archipelago. The geographical position of Giorgios Kameni, at about the center of the group, is latitude 36° 24' north and longitude 25° 24' east. The islands lie on the curving belt or zone of active or recently extinct volcanoes³ that extends from Kolantziki⁴ (on the coast of Megara, east of the Isthmus of Corinth), through Ægina,⁴ Methana,⁴ Poros,⁴ Milos (with Kimolos, Antimilos, and Polyvos),⁵ Santorini,⁶ Nisyros,⁷ and Kos,⁸ to Kalymnos, and probably northwardly through Mount Pagos at Smyrna,⁹ to Phocea and Pergamon.⁹ The lavas along this volcanic line are much alike and are almost all dacitic and andesitic, with a few basalts. The zone constitutes a well-defined, although small, comagmatic region, which forms an arc or festoon bordering the sunken . . .