United States · Stratovolcano
Mount Katmai
Katmai
- Type
- Stratovolcano
- Elevation
- 2047m
- Last eruption
- 1912
- Type
- Stratovolcano
- Country
- United States
- Region
- North America / Alaska Peninsula Volcanic Arc
- Elevation
- 2047m
- Coordinates
- 58.279, -154.953
- Last eruption
- 1912
- Tectonic setting
- Subduction zone / Continental crust (> 25 km)
- Landform
- Composite
- Major rock type
- Andesite / Basaltic andesite
Geological summary
Katmai was initially considered to be the source of the Valley of Ten Thousand Smokes ash flow in 1912.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Mount Katmai is a large dormant stratovolcano on the Alaska Peninsula in southern Alaska, located within Katmai National Park and Preserve. It is about 6.3 miles (10 km) in diameter with a central lake-filled caldera about two by three miles in size, formed during the Novarupta eruption of 1912. The caldera rim reaches a maximum elevation of 6,715 feet (2,047 m). In 1975 the surface of the crater lake was at an elevation of about 4,055 feet (1,236 m), and the estimated elevation of the caldera floor is about 3,260 ft (995 m).
Wikipedia · CC BY-SA · Read full article →
Eruption history
1 recordedGlossaryRecord summary
- Confirmed eruptions
- 1
- Uncertain eruptions
- 0
- Span of confirmed record
- 1912 – 1912
- Largest confirmed eruption
- VEI 3 (1912)
- Confirmed eruptions since 1900
- 1
Detailed timeline
- 1912VEI 3Observed1912-06-06 – 1912-07-21
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.