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United States · Stratovolcano

Mount Adams

Adams

Type
Stratovolcano
Elevation
3742m
Last eruption
950
Mount Adams
Photo: USGS Photo by R. Iverson, USGS/CVO · Public domain · Wikimedia Commons
Type
Stratovolcano
Country
United States
Region
North America / High Cascades Volcanic Arc
Elevation
3742m
Coordinates
46.206, -121.490
Last eruption
950
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite

Geological summary

The andesitic-dacitic Mount Adams stratovolcano is second in volume only to Mount Shasta in the Cascade Range.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

From Wikipedia

Mount Adams is a stratovolcano located in the Cascade Range of Washington, United States. Standing at 12,276 ft (3,742 m) feet, it is the second-highest mountain in Washington and a prominent feature within the Cascade Volcanic Arc, which formed as a result of the subduction of the Juan de Fuca Plate beneath the North American Plate. Adams is near two more-frequently erupting neighbors, Mount St Helens and Mount Rainier. It has twelve named glaciers descending its slopes.

Wikipedia · CC BY-SA · Read full article →

Eruption history

15 recordedGlossary

Record summary

Confirmed eruptions
15
Uncertain eruptions
0
Span of confirmed record
7050 BCE (±1000 yrs) – 950
Largest confirmed eruption
VEI 2 (950, the most recent of 12)
Confirmed eruptions since 1900
0
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
7050 BCE~6783 BCE · 1 eruptions · max VEI 25183 BCE~4917 BCE · 1 eruptions · max VEI 24650 BCE~4383 BCE · 1 eruptions · max VEI 24117 BCE~3850 BCE · 1 eruptions · max VEI 23850 BCE~3583 BCE · 1 eruptions · max VEI 13583 BCE~3317 BCE · 1 eruptions · max VEI 23317 BCE~3050 BCE · 1 eruptions · max VEI 23050 BCE~2783 BCE · 1 eruptions · max VEI 12783 BCE~2517 BCE · 1 eruptions · max VEI 21983 BCE~1717 BCE · 1 eruptions · max VEI 1650 BCE~383 BCE · 2 eruptions · max VEI 2383 BCE~117 BCE · 1 eruptions · max VEI 2150~417 · 1 eruptions · max VEI 2683~950 · 1 eruptions · max VEI 27050 BCE5183 BCE3050 BCE1183 BCE683

Detailed timeline

  1. 950VEI 2Geological estimate
    950 – end unknown
    East flank?
  2. 200VEI 2Geological estimate
    200 – end unknown
  3. 300 BCEVEI 2Geological estimate
    300 BCE – end unknown
  4. 400 BCEVEI 2Geological estimate
    400 BCE – end unknown
  5. 550 BCE (±1000 yrs)VEI 2Geological estimate
    550 BCE – end unknown
  6. 1850 BCEVEI 1Geological estimate
    1850 BCE – end unknown
    SSE flank (2100 m)
  7. 2650 BCE (±300 yrs)VEI 2Geological estimate
    2650 BCE – end unknown
  8. 2950 BCE (±100 yrs)VEI 1Geological estimate
    2950 BCE – end unknown
    SSE flank (2600 m)
  9. 3250 BCE (±300 yrs)VEI 2Geological estimate
    3250 BCE – end unknown
  10. 3550 BCEVEI 2Geological estimate
    3550 BCE – end unknown
  11. 3800 BCE (±1950 yrs)VEI 1Geological estimate
    3800 BCE – end unknown
    NNE flank (2100-2250 m)
  12. 4050 BCE (±500 yrs)VEI 2Geological estimate
    4050 BCE – end unknown
    Upper SW flank?
  13. 4550 BCEVEI 2Geological estimate
    4550 BCE – end unknown
    NW flank (2200-2400 m)
  14. 5150 BCE (±500 yrs)VEI 2Geological estimate
    5150 BCE – end unknown
  15. 7050 BCE (±1000 yrs)VEI 2Geological estimate
    7050 BCE – end unknown

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.