2 spots left on Iceland Geo Tour 16-30 July 2022

Broken Top volcano

Updated: Jul 3, 2022 17:37 GMT - Refresh

stratovolcano 663 m / 2,175 ft
Oregon (Canada and USA (mainland)), 44.08°N / -121.7°W
Current status: (probably) extinct (0 out of 5)

Broken Top in the Three Sisters Wilderness, Oregon, is, as the name suggests, the heavily eroded top of a probably extinct stratovolcano.

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Typical eruption style: Explosive
Broken Top volcano eruptions: unknown, but probably none during the past 10,000 years
Lastest nearby earthquakes: No recent earthquakes

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Background

The earliest products were basaltic lava flows forming a basal shield. Later stage eruptions built a steeper cone of more silica rich lava flows and pyroclastic deposits.

Broken Top Photos

Broken Top volcano, Oregon (Photo: Richard Arculus)

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