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Jumbo Dome volcano

Lava dome 1369 m / 4491 ft
Eastern Alaska, United States, 63.97°N / -148.69°W
Current status: (probably) extinct (0 out of 5) | Reports
Jumbo Dome volcano books
Typical eruption style: unspecified
Jumbo Dome volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene) No recent earthquakes
TimeMag. / DepthDistanceLocation


Jumbo Dome is a large cylindrical plug of hornblende andesite 1.6 km long, 1.3 km wide, and 500 m high which intrudes the Devonian Keevy Peak Formation basement and overlying Tertiary Suntrana Formation (AVO, 2005-). Ar/Ar dating by Athey et al. (2006) yielded an age for Jumbo Dome of 1.026 +/- 0.057 Ma.
Source: Smithsonian / GVP volcano information

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See also: Sentinel hub | Landsat 8

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