Santorini caldera, Volcanic caldera in Thira Municipality, Greece
The Santorini caldera extends across 12 kilometers with steep walls rising 300 meters above the Aegean Sea, containing two central volcanic islands, Nea Kameni and Palea Kameni.
The caldera formed during a massive volcanic eruption around 1610 BCE, which transformed the Mediterranean landscape and potentially influenced the story of Atlantis.
Multiple villages perch along the caldera rim, including Fira, Imerovigli, and Oia, where residents maintain traditions despite geological challenges through centuries.
Visitors can explore the caldera through boat tours departing from the old port, with options to swim in thermal springs and walk on volcanic terrain.
The caldera reaches a depth of 385 meters below sea level, creating an underwater amphitheater that continues to experience geological activity.
Location: Thira Municipality
Elevation above the sea: 367 m
Website: http://volcano.si.edu/volcano.cfm?vn=212040
GPS coordinates: 36.40443,25.39586
Latest update: November 28, 2025 15:51
This collection brings together active volcanoes located on multiple continents, from Cotopaxi in the Ecuadorian Andes to Mount Fuji in Japan, including Vesuvius in Italy and Mauna Loa in Hawaii. Each site demonstrates different geological processes: stratovolcanoes like Mount Saint Helens and Etna produce explosive eruptions, while Hawaiian shield volcanoes generate flowing lava that can travel long distances. The selection also includes sites that have marked history through their destructive power, such as Krakatoa, whose 1883 eruption caused tens of thousands of casualties, or Vesuvius, which buried Pompeii and Herculaneum in AD 79. Other volcanoes like Iceland's Eyjafjallajökull have recently shown their ability to disrupt human activities globally. These locations offer insight into how volcanic activity shapes landscapes and influences nearby populations.
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