AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
About Alaska's Volcanoes | Hazards from Alaska's Volcanoes | Map & Alphabetical List | Interactive Map | Latitude/Longitude List | Eruption Search | Volcano Search | Ugashik-Peulik 
You are here: Home > Volcano Information > Ugashik-Peulik

Ugashik-Peulik description and information




Type:Stratovolcano with summit and flank domes, overlapping Ugashik caldera
Most Recent Activity:June 18, 2013
Seismically Monitored: Yes
Color Code:GREEN
Alert Level:NORMAL
Elevation: 4836 ft (1474 m)
Latitude: 57.7503° N
Longitude:156.37° W
CAVW Number:312130
Pronunciation: Sound file
Associated Features:Ugashik caldera
Mafic Knob 500
Nearby towns:Kanatak 18 mi (29 km) SE
Ugashik 42 mi (67 km) SW
Pilot Point 47 mi (75 km) SW
Egegik 49 mi (79 km) NW
Anchorage 329 mi (530 km) NE
From Miller and others (1998): "Mount Peulik volcano, a small truncated stratovolcano with a basal diameter of about 10 km, is located just north of the main axis of the Aleutian Range near Becharof Lake on the Alaska Peninsula. The volcano lies west of the axis of a northeast-striking syncline (Detterman and others, 1987) and is built upon Jurassic sedimentary rocks. The volcano partially overlaps the north flank of Ugashik caldera, a small circular structure about 5 km in diameter and of probable late Pleistocene age. A summit crater, about 1.5 km in diameter, has been breached on the west side and is occupied by a dome about 0.5 km in diameter. This dome, and possibly earlier predecessors, were the source the a thick deposit of block-and-ash flows that underlie about 40 square km of the western flank of the volcano. A smaller dome occurs on the east flank at an elevation of 1200 m and was the source of a small block-and-ash flow. Avalanche deposits representing an earlier sector collapse (Miller, unpublished data) underlie an area of 75 square km northwest of the volcano. Flows from flank eruptions of Peulik cover about 8 square km north of the volcano extending as far as Becharof Lake."
Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/volcanoes/volcinfo.php
Page modified: June 12, 2014 07:20
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS