Dana
Stratovolcano in United States
Key Facts
Elevation
1,354 m (4,442 ft)
Type
Stratovolcano
Location
55.641°, -161.214°
Region
Aleutian Ridge Volcanic Arc
Rock Type
Andesite / Basaltic Andesite
Tectonic Setting
Subduction zone
Location
Loading map...
Overview
Mount Dana is a small calc-alkaline volcano NE of Canoe Bay inlet at the head of Pavlof Bay consisting of an apron of volcaniclastic debris surrounding a central dome complex. The high point is located at the north rim of a 1. 5 x 2 km crater, whose SW rim exposes Mesozoic sedimentary rocks.
Andesitic lava domes occur on the west crater rim and as a small mound east of Knutson Lake inside the crater. Dana is the source of a mid-Holocene block-and-ash flow that reached the sea at Canoe Bay. No historical eruptions are known, but a 200-m-wide tufa mound and several cold springs are located on the SW flank.
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 | 3916 years ago | Historical | Historically active |
Monitoring & Alert Status
Monitoring Networks
Current Status
Nearby Volcanoes in North America Volcanic Regions
Quick Info
- •Smithsonian ID: 312050
- •Evidence: Eruption Dated
- •Epoch: Holocene
About the Photo
Snow-covered Knutson Lake (lower left) lies within a 1.5 x 2 km wide crater of Mount Dana. Dana is a small volcano consisting of a central dome complex surrounded by a fan of volcaniclastic debris. Lava domes are along the western crater rim and inside the crater east of Knutson Lake. A major eruption about 3,840 radiocarbon years ago produced a block-and-ash flow that filled valleys south and west of the crater.
Photo courtesy of Alaska Volcano Observatory, U.S. Geological Survey, 1973.
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.