Volcano · Greece
Santorini
Its Bronze Age eruption shaped the island's famous flooded caldera.
Status right now
No current reports
Santorini is not in the latest Smithsonian weekly report or the GDACS volcano alerts. That usually means it is quiet, but not every change is reported straight away. For official alerts, follow the local volcano observatory.
Checked 4 Nov 2026, 23:41 UTC.
Key facts
- Country
- Greece
- Region
- Europe
- Type
- Caldera
- Summit
- 367 m (1,204 ft)
- Coordinates
- 36.404° N, 25.396° E
- Smithsonian number
- 212040
What kind of volcano is it?
Santorini is a caldera. A caldera is a huge basin left when a volcano empties its magma chamber in a large eruption and the ground above collapses. Calderas can stay restless for centuries, with earthquakes, ground swelling and gas.
Eruption history
| Date | VEI | Deaths | Also |
|---|---|---|---|
| 23 Jan 1926 | 2 | 48 | – |
| 20 Feb 1866 | 2 | 1 | – |
| May 1707 | 3 | – | tsunami |
| 29 Sept 1650 | 4 | 120 | tsunami |
| 6 Dec 1650 | 4 | – | tsunami |
| 27 Sept 1650 | 4 | – | tsunami |
| 4 Nov 1650 | 4 | 20 | tsunami |
| 1050 | – | – | tsunami |
| 46 | 3 | – | tsunami |
| 197 BCE | 3 | – | tsunami, earthquake |
| 1,610 BCE | 7 | – | tsunami, earthquake |
11 significant eruptions near Santorini in NOAA's Global Significant Volcanic Eruptions Database, which lists eruptions that caused deaths, damage or a tsunami, or were VEI 6 or larger. VEI is the Volcanic Explosivity Index, from 0 to 8.
Nearby volcanoes
- EtnaItaly · 934 km
- StromboliItaly · 935 km
- VulcanoItaly · 948 km
- VesuviusItaly · 1,071 km
- Campi FlegreiItaly · 1,094 km
- Erta AleEthiopia · 2,957 km
Not an official warning service. In an emergency, follow your local authorities.