Main Volcanoes Nemo Peak

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Name: Nemo Peak
GVP Number: 290320
Synonims: Amka-Usyr, Nesige
Region: Kuril Islands
Volcanic Area: Northern Kuriles
Coordinates:
49°33'51" N   154°48'45" E
Absolute Elevation: 1018 m
Relative Elevation: 97 m
Status: Active
Aviation Color Code: GREEN
Location: Peak Nemo volcano is located in the northern part of Onekotan Island, it is situated somewhat eccentrically in the Nemo caldera
Type: Stratovolcano
Composition: andesites, andesite-basalts
Recent Known Eruption: 1938/8/12
Description
The central cone of Peak Nemo volcano rises somewhat eccentrically relative to the Nemo caldera with a diameter of 8-9 km, overlapping its southern edge. Nemo Peak is a regular truncated cone with a diameter of about 5 km. The fairly flat slopes of the volcano are covered with numerous flows of lavas, sometimes covered with ash and slag from the surface. In the southwestern part of the cone, at an altitude of 750-800 m, a ridge of the ridge of the old crater is noted, the diameter of which apparently reached 800-900 m. This crater is completely filled with an inner cone, the crater of which (diameter 350 m), in turn, is sealed by a small extrusive dome with a height of about 100 m. On the surface of the ledge there is an explosive funnel with a diameter of 40 m and a depth of 30 m - a point of intense modern solfatar activity. The regular appearance of the central cone is broken only in the north-west, where the remains of another structure appear, which are streamlined by the young lava flows of Peak Nemo. Apparently, it was an eccentric young cone, destroyed by a large explosion. Nemo Peak is composed of andesite-basaltic and andesitic rocks.

References

Горшков Г.С. Вулканизм Курильской островной дуги / Отв. ред. Рудич К.Н. 1967. 288 с.
Горшков Г.С. Каталог действующих вулканов Курильских островов // Бюллетень вулканологических станций. 1957. № 25. С. 96-178.
Гущенко И.И. Извержения вулканов мира. Каталог / Отв. ред. Рудич К.Н. 1979. 476 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.


 

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