Greek authorities have issued new civil protection regulations tightening public access to high-risk zones within the Santorini volcanic complex, following recommendations from scientists monitoring a series of geodynamic alerts in the region.
The Joint Ministerial Decision, signed by seven government departments including the ministries of Climate Crisis, Civil Protection, Interior and Tourism, introduces new limits on visitor access and duration of stay in designated danger zones around the caldera and the volcanic islets of Nea and Palea Kameni.
The measures follow an emergency session of the Permanent Scientific Committee for the Monitoring of the Hellenic Volcanic Arc and the Seismic Risk Assessment Committee, whose members unanimously recommended restrictions after reviewing updated geodynamic data. Officials described the decision as precautionary, but the coordination of seven ministries signals the seriousness with which Athens is treating the situation.
Minister Vassilis Kikilias said protecting both permanent residents and seasonal tourists is the government's primary focus as the summer season gets underway.
Civil protection teams will have expanded authority to enforce exclusion zones, and implementation at key entry points will be overseen jointly by Mr. Kikilias's ministry and the Ministry of Maritime Affairs.
The restrictions come less than a year after landslides and seismic tremors disrupted the island's tourism infrastructure, rattling confidence in one of Greece's most visited and economically vital destinations.
Santorini draws more than three million tourists annually, and any prolonged restrictions on access to its iconic caldera would carry significant economic consequences.
Officials said the measures will be kept under continuous review as geological monitoring data evolves.