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Belknap volcano

shield volcanoes 2095 m / 6,873 ft
Oregon, USA (mainland exept Alaska), 44.29°N / -121.84°W
Current status: dormant (1 out of 5)
Typical eruption style: effusive
Belknap volcano eruptions: 400 AD (?), 800 BC ± 300, 1030 BC ± 300 (all radiocarbon dated)
TimeMag. / DepthDistanceLocation
Sat, 13 Sep
Sat, 13 Sep 23:34 UTCM 1.3 / 7.7 km8 km34km SW of Sisters, Oregon
Belknap Crater volcano is located near McKenzie Pass, north of the Three Sisters volcanoes in Central Oregon. It is the center and source of one of the largest number of geologically recent eruptions in the Cascade Range. It was very active between about 3000 and 1500 years ago.
The McKenzie highway 242 crosses the barren lava fields on the SE flank and offers with spectacular views toward Mt. Jefferson and the Three Sisters volcanoes.

Background:

Belknap is a basaltic to basaltic-andesite shield volcano, topped by the Belknap Crater, a cinder cone, and the shield volcano of Little Belknap to the west. Lava flows from these vents have spread to all directions and created an impressive landscape of lava flows. The youngest of these flows traveled 15 km west into the McKenzie River valley.


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