Volcano Pallas Peak. Facts
Name: Pallas Peak
GVP Number: 290200
Region: Kuril Islands
Volcanic Zone: Central Kuriles
Coordinates: 47°20'32" N 152°28'33" E
Absolute Elevation: 1002 m
Relative Elevation: 320 m
Status: Active
Aviation Color Code: GREEN
Location: The volcano is located in the central part of Ketoi Island
Type: Stratovolcano
Composition: two-pyroxene andesites
Last known eruption: 1960/09/27

Pallas Peak is located inside the ancient central building of Ketoi Volcano on the eastern edge of Ketoy Lake. The southwestern, older and higher (about 1000 m) part of the volcano forms an amphitheater open to the northeast, in which a young cone is located. The northeastern slopes of the latter descend to the atrio of the ancient caldera, and the southeastern slope, leaning against the wall of the amphitheater, is barely pronounced. The cone of Pallas Peak is somewhat elongated from southwest to northeast. The relative height of the cone above the level of Ketoy Lake is 320 m, the diameter of the crater of the inner cone is about 400 m. The walls of the crater abruptly break down, and at the bottom of it there is the Glazok crater lake with a diameter of 300 m. To the southwest from Pallas Peak to the shores of Ketoy Lake descends ancient, heavily overgrown lava flows. Numerous young lava flows extend eastward to the very shore of the ocean (up to 4.5 km). A series of lava flows from the crater of the inner cone extend northward, filling the atrio of the ancient caldera. On the northeastern slope of the cone there is a linear group of very powerful fumaroles.

Горшков Г.С. Вулканизм Курильской островной дуги / Отв. ред. Рудич К.Н. М.: Наука. 1967. 288 с.
Potencial Hazard
Ash clouds, ash falls, pyroclastic flows, 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 10-15 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.
Related Resources
Active Volcanoes of Kamchatka and Kuriles