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United States · Shield volcano

Medicine Lake Volcano

Medicine Lake

Type
Shield volcano
Elevation
2412m
Last eruption
1060
Medicine Lake Volcano
Photo: Daniel Mayer, aka Mav at en.wikipedia · CC BY-SA 3.0 · Wikimedia Commons
Type
Shield volcano
Country
United States
Region
North America / High Cascades Volcanic Arc
Elevation
2412m
Coordinates
41.611, -121.554
Last eruption
1060
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Shield
Major rock type
Basalt / Picro-basalt

Geological summary

Medicine Lake is a large Pleistocene-to-Holocene, basaltic-to-rhyolitic shield volcano east of the main axis of the Cascade Range.

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

From Wikipedia

Medicine Lake Volcano is a large shield volcano in northeastern California about 30 mi (50 km) northeast of Mount Shasta. The volcano is located in a zone of east–west crustal extension east of the main axis of the Cascade Volcanic Arc and the Cascade Range. The 0.6 mi (1 km) thick shield is 30 mi (50 km) from east to west and 50 mi (80 km) from north to south, and covers more than 800 sq mi (2,200 km2). The underlying rock has downwarped by 0.3 mi (0.5 km) under the center of the volcano. The volcano is primarily composed of basalt and basaltic andesite lava flows, and has a 4 by 7 mi caldera at the center.

Wikipedia · CC BY-SA · Read full article →

Eruption history

10 recordedGlossary

Record summary

Confirmed eruptions
9
Uncertain eruptions
1
Span of confirmed record
3190 BCE – 1060
Largest confirmed eruption
VEI 3 (1060, the most recent of 2)
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
3190 BCE~2994 BCE · 2 eruptions · max VEI 01228 BCE~1032 BCE · 1 eruptions · max VEI 01032 BCE~836 BCE · 1 eruptions · max VEI ?733~929 · 3 eruptions · max VEI ?929~1125 · 2 eruptions · max VEI 31714~1910 · 1 eruptions · max VEI 13190 BCE2013 BCE640 BCE5371714

Detailed timeline

  1. 1910VEI 1Method not stated
    1910-01-16 – end unknown
    East flank (Glass Mountain ?)
  2. 1060VEI 3Geological estimate
    1060 – end unknown
    Upper east flank (Glass Mountain)
  3. 1010VEI 3Geological estimate
    1010 – end unknown
    SW flank (Little Glass Mountain)
  4. 840VEI ?Geological estimate
    840 – end unknown
    SW flank (Paint Pot Crater)
  5. 830VEI ?Geological estimate
    830 – end unknown
    North flank
  6. 780VEI ?Geological estimate
    780 – end unknown
    NE caldera rim (Mt. Hoffman area)
  7. 1000 BCEVEI ?Geological estimate
    1000 BCE – end unknown
    SE flank
  8. 1130 BCEVEI 0Geological estimate
    1130 BCE – end unknown
    Lower north flank (Black Crater)
  9. 3090 BCEVEI ?Geological estimate
    3090 BCE – end unknown
    SE caldera rim
  10. 3190 BCEVEI 0Geological estimate
    3190 BCE – end unknown
    NW caldera floor (Medicine Lake Glass flow)

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.