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

Mount Wrangell description and information

WRANGELL LINKS

SAMPLES
LOCATION
FACTS
Official Name: Mount Wrangell
Type:Shield volcano with summit caldera
Most Recent Activity:March 26, 1930
Seismically Monitored: No
Elevation: 14163 ft (4317 m)
Latitude: 62.00572° N
Longitude:144.01935° W
Quadrangle:Gulkana Valdez McCarthy Nabesna
CAVW Number:315020
Pronunciation: Sound file
Associated Features:Chetaslina Vent
Zanetti, Mt
North Crater
East Crater
West Crater
Wrangell Caldera
Nearby towns:Kenny Lake 35 mi (56 km) SW
Chitina 37 mi (59 km) SW
Willow Creek 41 mi (66 km) SW
Copper Center 42 mi (67 km) SW
Anchorage 201 mi (323 km) SW
DESCRIPTION
From Miller and others (1998): "Mount Wrangell is a large andesitic shield volcano with a volume of about 900 cubic kilometers (Nye, 1983). Its top is capped by a 4 by 6 km, ice-filled summit caldera whose depth may exceed 1 km (Benson and Motyka, 1979). The caldera is apparently of non-explosive origin (Richter and others, 1984) formed in response to the withdrawal of magma from high-level reservoirs beneath the summit area. Three small (<1 km in diameter) post-caldera craters, all geothermally active, occur along the west and north margin of the caldera. Mt. Zanetti (3965 m) a large (450 m high) steep-sided, relatively undissected cinder-spatter cone occurs high on the northwest flank of the shield and may be the source of some lava flows. Lavas on the southwest flank have flowed as much as 58 km from their source despite being phenocryst-rich andesite, a mobility attributed to a very high eruption rate (Nye, 1983)."
Contact AVO Privacy Accessibility Information Quality FOIA
URL: www2.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