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Glacier Peak volcano

stratovolcano 3213 m / 10,541 ft
Washington, USA (mainland exept Alaska), 48.11°N / -121.11°W
Current status: normal or dormant (1 out of 5) | Reports
Glacier Peak volcano books
Typical eruption style: Explosive
Glacier Peak volcano eruptions: 1700±100, 1300±300, 900, 200 AD, 850 BC(?)
TimeMag. / DepthDistanceLocation
Fri, 5 Oct
Fri, 5 Oct 14:23 UTCM 1.2 / 4.6 km24 km- 53km NW of Granite Falls, Washington
Mon, 1 Oct
Mon, 1 Oct 10:04 UTCM 0.9 / 8.6 km26 km- 51km SW of Mazama, Washington
Thu, 13 Sep
Thu, 13 Sep 18:12 UTCM 1.1 / 7.6 km47 km- 5km E of Gold Bar, Washington
Tue, 28 Aug
Tue, 28 Aug 22:39 UTCM 1.0 / 6.5 km38 km- 29km NW of Leavenworth, Washington
View all recent quakes
Glacier Peak is a stratovolcano in northern Washington and the most remote of the Cascade volcanoes. Its name comes from the 11 glaciers on its flanks.
Although it reaches more than 10,000 feet elevation, the volcanic edifice is only 500-1000 m high, because the volcano's base is located on a high ridge.

Background:

Glacier Peak forms a prominent peak in the rugged forested terrain of the Glacier Peak Wilderness Area in the North Cascades. Glacier Peak is a dacitic-andesitic stratovolcano with summit and flank lava domes; it resembles Mount St. Helens in its explosive vigor.
Several major explosive eruptions and episodes of lava dome growth occurred in the past 10,000 years. Ash deposits from these eruptions are found over wide distances to the east. Voluminous pyroclastic flow and mudflow deposits extend into the Puget Sound lowlands to the west. Some of these deposits diverted river courses into adjacent valleys.
The latest eruption of Glacier Peak was only a few hundred years ago and was noted by Pacific Northwest Indians. Hot springs are found on its flanks.


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