United States · Stratovolcano
Mount Churchill
Churchill
- Type
- Stratovolcano
- Elevation
- 5005m
- Last eruption
- 847
- Type
- Stratovolcano
- Country
- United States
- Region
- North America / Wrangell Volcanic Arc
- Elevation
- 5005m
- Coordinates
- 61.380, -141.750
- Last eruption
- 847
- Tectonic setting
- Intraplate / Continental crust (> 25 km)
- Landform
- Composite
- Major rock type
- Dacite
Geological summary
The Bona-Churchill massif in the St. Elias Mountains has a 2.7 x 4.2 km summit caldera which was the source of the White River Ash, produced by two of the largest explosive eruptions in North America during the past 2,000 years (McGimsey et al., 1992).
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Mount Churchill is a dormant volcano in the Saint Elias Mountains and the Wrangell Volcanic Field (WVF) of eastern Alaska. Churchill and its neighbor Mount Bona are both ice-covered volcanoes with Churchill having a 2.7-by-4.2-kilometre-wide caldera just east of its summit. There are sparse outcrops of lava flows and tephra, mostly dacite.
Wikipedia · CC BY-SA · Read full article →
Eruption history
2 recordedGlossaryRecord summary
- Confirmed eruptions
- 2
- Uncertain eruptions
- 0
- Span of confirmed record
- 63 (±200 yrs) – 847
- Largest confirmed eruption
- VEI 6 (847, the most recent of 2)
- Confirmed eruptions since 1900
- 0
Detailed timeline
- 847 (±1 yrs)VEI 6Geological estimate847 – end unknown
- 63 (±200 yrs)VEI 6Geological estimate63 – end unknown
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.