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Ugashik-Peulik volcan

Stratovolcano 1474 m / 4,836 ft
United States, Alaska Peninsula, 57.75°N / -156.37°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Ugashik-Peulik livres
Style éruptif tipique: unspecified
Eruptions du volcan Ugashik-Peulik: 1814 
HeureMag. / DepthDistanceLocation
Wed, 13 Feb 2019
Wed, 13 Feb 08:25 UTCM 2.0 / 139.8 km30 km- 89km SSE of King Salmon, Alaska
Mon, 4 Feb 2019
Mon, 4 Feb 04:23 UTCM 1.7 / 77.5 km28 km- Alaska Peninsula
Wed, 30 Jan 2019
Wed, 30 Jan 14:06 UTCM 2.3 / 4.2 km50 km- Alaska Peninsula
Thu, 17 Jan 2019
Thu, 17 Jan 03:31 UTCM 2.1 / 114 km16 km- 87km SSE of King Salmon, Alaska
Wed, 26 Dec 2018
Wed, 26 Dec 11:51 UTCM 2.1 / 9.3 km30 km- 109km W of Larsen Bay, Alaska
Voir tous

Introduction:

The Ugashik-Peulik volcanic complex lies south of Becharof Lake and east of Upper Ugashik Lake. Late-Pleistocene caldera formation at Ugashik volcano was followed by the emplacement of at least 5 Holocene lava domes within the 4.5-km-wide caldera. Most of the caldera walls consist of basement sandstones of Jurassic age. Following caldera formation the small, 3 cu km Peulik stratovolcano grew 2.5 km to the north to a height of 1474 m, more than 500 m above that of Ugashik. Lava flows from Peulik cover the caldera rim to the south and extend to Becharof Lake, 6 km to the north. A small lava dome at 1200 m elevation on the east flank of Peulik was the source of a small block-and-ash flow. The summit of Peulik volcano contains a 1.5-km-wide crater breached to the west that is partially filled by a lava dome. Debris-avalanche deposits cover a 75 sq km area to the NW. A single documented historical eruption took place from Peulik volcano in 1814.
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Smithsonian / GVP volcano information


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