Kolumbo

The Kolumbo submarine volcano rises from the seafloor to within 10 meters of the surface, forming a 1.5-kilometer-wide crater northeast of Santorini.

During its devastating 1650 eruption, Kolumbo released powerful pyroclastic flows and generated tsunamis that reached distances of 150 kilometers across the Aegean Sea.

Greek maritime communities maintain records of the 1650 eruption through written accounts that detail the geological events and their effects on local populations.

Scientists monitor the volcano with underwater instruments that measure seismic activity and temperature changes to predict potential volcanic movements.

The crater floor at 505 meters depth contains hydrothermal vents releasing water at 224 degrees Celsius, creating mineral structures on the seafloor.

Location: Decentralized Administration of the Aegean

Elevation above the sea: -10 m

Part of: South Aegean Volcanic Arc

GPS coordinates: 36.51703,25.49396

Latest update: May 21, 2025 12:04