Uliaga
Stratovolcano in United States
Key Facts
Elevation
888 m (2,913 ft)
Type
Stratovolcano
Location
53.065°, -169.770°
Region
Aleutian Ridge Volcanic Arc
Rock Type
No Data (checked)
Tectonic Setting
Subduction zone
Location
Loading map...
Overview
The small 3-km-wide island of Uliaga, located at the NE end of the Islands of the Four Mountains archipelago immediately NW of Kagamil Island, is an eroded stratovolcano. It is the smallest of the Islands of the Four Mountains volcanoes. There are no reports of historical eruptions, but is was considered to have been active during the Holocene by Nye et al.
(1998).
Volcanic Hazards & Risk Assessment
Primary Hazards
- Pyroclastic flows
- Lava flows
- Volcanic bombs and ballistics
- Lahars and mudflows
Risk Level
Geological Composition & Structure
Rock Types
Tectonic Setting
Age & Formation
Eruption Statistics & Analysis
| Metric | Value | Global Ranking | Significance |
|---|---|---|---|
| Total Recorded Eruptions | Unknown | Low | Moderately active volcano |
| Maximum VEI | VEI Unknown | Minor | Local impact potential |
| Recent Activity | Unknown | Historical | Historically active |
Monitoring & Alert Status
Monitoring Networks
Current Status
Nearby Volcanoes in North America Volcanic Regions
Quick Info
- •Smithsonian ID: 311250
- •Evidence: Evidence Credible
- •Epoch: Holocene
About the Photo
The 3-km-wide Uliaga island, at the NE end of the Islands of Four Mountains archipelago immediately NW of Kagamil Island, is the smallest volcano of the group. Little is known geologically about this volcano, and there are no reports of observed eruptions.
Photo by Michelle Harbin (courtesy of Alaska Volcano Observatory, U.S. Geological Survey).
Authority Sources
Related Volcanoes
Basic Information
This page shows basic data from the Smithsonian Global Volcanism Program. For more detailed information, visit the official Smithsonian page.