Akademia Nauk volcan

Mise à jour: 13 août. 2022 08:24 GMT - Refresh
Stratovolcanoes 1180 m / 3,871 ft
Kamchatka, Russia, 53.98°N / 159.45°E
Condition actuelle: normal / en sommeil (1 sur 5)

Montrer carte interactive
Style éruptif tipique: unspecified
Eruptions du volcan Akademia Nauk: 1996 
Derniers séismes proches: No recent earthquakes

Introduction

The scenic lake-filled Akademia Nauk caldera is one of three volcanoes constructed within the mid-Pleistocene, 15-km-wide Polovinka caldera. Beliankin stratovolcano, in the SW part of Polovinka caldera, is eroded, but has been active in postglacial time (Sviatlovsky, 1959). Two nested calderas, 5 x 4 km Odnoboky and 3 x 5 km Akademia Nauk (also known as Karymsky Lake or Academii Nauk), were formed during the late Pleistocene, the latter about 30,000 years ago. Eruptive products varied from initial basaltic-andesite lava flows to late-stage rhyodacitic lava domes. Two maars, Akademia Nauk and Karymsky, subsequently formed at the southern and northern margins of the caldera lake, respectively. The northern maar, Karymsky, erupted about 6500 radiocarbon years ago and formed a small bay. The first historical eruption from Akademia Nauk did not take place until January 2, 1996, when a brief, day-long explosive eruption of unusual basaltic and rhyolitic composition occurred from vents beneath the NNW part of the caldera lake near Karymsky maar.
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Smithsonian / GVP volcano information

Akademia Nauk Photos

The active caldera lake of Akademia Nauk volcano southeast of Karymsky seen from the helicopter. (Photo: Tom Pfeiffer)
The active caldera lake of Akademia Nauk volcano southeast of Karymsky seen from the helicopter. (Photo: Tom Pfeiffer)
We take a hike (about 6 km one way) through the caldera towards the crater lake of Akademia Nauk. (Photo: Tom Pfeiffer)
We take a hike (about 6 km one way) through the caldera towards the crater lake of Akademia Nauk. (Photo: Tom Pfeiffer)
Back in the helicopter, we have spectacular aerial views today: this is the crater lake of Akademia Nauk, where we had been on foot yesterday, a neighboring active caldera. (Photo: Tom Pfeiffer)
Back in the helicopter, we have spectacular aerial views today: this is the crater lake of Akademia Nauk, where we had been on foot yesterday, a neighboring active calder...
Shortly before arriving, we pass the caldera lake Karymskoe lake (also known as Akademia Nauk), a neighbor volcano that erupted violently about 30,000 years ago, leaving the now lake-filled 3x5 km wide caldera. (Photo: Tom Pfeiffer)
Shortly before arriving, we pass the caldera lake Karymskoe lake (also known as Akademia Nauk), a neighbor volcano that erupted violently about 30,000 years ago, leaving ...
 



See also: Sentinel hub | Landsat 8 | NASA FIRMS
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