Tyatya
Encyclopedia
Tyatya 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 1819 metres (5,968 ft). 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..
Volcano
2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...
located in the northeastern part of Kunashir Island
Kunashir Island
Kunashir Island , possibly meaning Black Island or Grass Island in Ainu, is the southernmost island of the Kuril Islands, which are controlled by Russia and claimed by Japan ....
, Kuril Islands
Kuril Islands
The Kuril Islands , in Russia's Sakhalin Oblast region, form a volcanic archipelago that stretches approximately northeast from Hokkaidō, Japan, to Kamchatka, Russia, separating the Sea of Okhotsk from the North Pacific Ocean. There are 56 islands and many more minor rocks. It consists of Greater...
, Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
. It is the highest peak on the island with an elevation of 1819 metres (5,968 ft). Tyatya is one of the finest examples anywhere in the world of a somma volcano
Somma volcano
A somma volcano is a volcanic caldera that has been partially filled by a new central cone. The name comes from Mount Somma , a stratovolcano in southern Italy with a summit caldera in which the cone of Mount Vesuvius has grown.A number of the world's best examples of somma volcanoes are found on...
, a stratovolcano
Stratovolcano
A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...
whose summit has collapsed to form a caldera
Caldera
A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption, such as the one at Yellowstone National Park in the US. They are sometimes confused with volcanic craters...
which has then been mostly refilled by a new, younger volcanic cone which rises above the caldera rim..