Distance from Santorini Volcano to the Nearest Major Population Center

Santorini (Thera) is an active volcanic island in the Cyclades group of the Aegean Sea. The nearest major population center is Heraklion, the capital of Crete, located approximately 120 km (75 miles) to the south. Heraklion has a population of roughly 175,000. The island's own main towns—Fira, Oia, and Therasia—are much smaller but sit directly on the caldera rim. Monitoring by the Hellenic Survey of Geology and Mineral Exploration ensures early warning for any volcanic activity.