Tyatya Volcano
GVP Number  290030
IAVCEI Number  0900-03-
Location  44°21'11" N, 146°15'12" E
Last Eruption 1973/7/14 - 1973/7/28
Elevation 1819 m
The volcano is located on the northeastern extremity of Kunashir Island
Form and structure
Tyatya volcano is a regular strongly truncated large stratovolcano with a base diameter of 15-18 km and a height of up to 1485 m, on top of which there is a shallow slightly oval caldera 2.1 x 2.4 km in size, in which there is an inner cone with a base diameter of about 1.5 km.
andesites, basalts, andesite-basalts
Aviation color code
Last VONA/KVERT Releases
No VONA/KVERT Releases
Hazard synopsis
Ash clouds, ash falls, hot avalanches and lahars are a potential hazard associated with explosive eruptions of this volcano. The volcano poses a potential hazard to international and local airlines passing in the Kuriles region, since the height of its ash emissions can reach 10 km above sea level, ash plumes and clouds can drift hundreds of kilometers from the volcano in different directions. In addition, the outflow of lava flows onto the slopes of the volcano and the surrounding area is possibly.
Monitoring status
1973/7/14 – 1973/7/28  

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