| Tyatya | |
|---|---|
Tyatya volcano in 1990 |
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| Elevation | 1,819 m (5,968 ft) [1] |
| Prominence | 1,819 m (5,968 ft) [1] |
| Listing | Ultra |
| Location | |
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Tyatya
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| Coordinates | [2] |
| Geology | |
| Type | Stratovolcano / somma volcano |
| Last eruption | 1981 |
Tyatya (Russian: Тятя, also spelled Tiatia and known as Chachadake(爺爺岳) in Japanese) is a volcano located in the northeastern part of Kunashir Island, Kuril Islands, Russia. It is the highest peak on the island with an elevation of 1,819 metres (5,968 ft).[2] Tyatya is one of the finest examples anywhere in the world of a somma volcano, a stratovolcano whose summit has collapsed to form a caldera which has then been mostly refilled by a new, younger volcanic cone which rises above the caldera rim..