description Polyvotis Crater Overview
Polyvotis Crater is a hydrothermal crater on Nisyros, a volcanic island in Greece whose summit lies within a caldera. It belongs to the island’s group of steam-driven crater features associated with historical hydrothermal activity, including eruptions recorded in 1871, 1873, and 1888. The site is therefore of interest for understanding phreatic eruptions and the continuing geothermal system of Nisyros.
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What is Polyvotis Crater?
Polyvotis Crater is a hydrothermal crater on Nisyros, a volcanic island in Greece. It lies within the island's caldera and belongs to a group of steam-driven crater features.
Where is Polyvotis Crater located?
The crater is on Nisyros in the southeastern Aegean Sea. Nisyros is a Greek volcanic island whose summit area is contained within a caldera.
Is Polyvotis Crater a lava crater?
Polyvotis is a hydrothermal crater, meaning it was formed by steam-driven activity rather than a conventional lava eruption. Its setting is linked to Nisyros's active geothermal system.
What historical eruptions are associated with Nisyros's hydrothermal craters?
Historical hydrothermal eruptions on Nisyros include events recorded in 1871 and 1873, along with another eruption in the same period. These events help explain why craters such as Polyvotis are studied as active geothermal features.
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