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Skookum Creek volcano

Lava dome(s) 2172 m / 7126 ft
Eastern Alaska, United States, 62.4°N / -143.15°W
Current status: (probably) extinct (0 out of 5) | Reports
Skookum Creek volcano books
Typical eruption style: unspecified
Skookum Creek volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene)
TimeMag. / DepthDistanceLocation
Thu, 11 Jun 2020
Thu, 11 Jun 23:30 UTCM 1.2 / 16.5 km27 km20 km E of Nabesna, Alaska (USA)
Thu, 21 May 2020
Thu, 21 May 23:49 UTCM 1.2 / 5.4 km19 km93km S of Tok, Alaska (USA)
Sun, 10 May 2020
Sun, 10 May 04:08 UTCM 1.9 / 12.7 km12 km98km S of Tok, Alaska (USA)
Sun, 12 Apr 2020
Sun, 12 Apr 00:27 UTCM 1.6 / 6.8 km13 km91km S of Tok, Alaska (USA)
Sat, 11 Apr 2020
Sat, 11 Apr 20:44 UTCM 2.623 km87km S of Tok, Alaska (USA)
View all recent quakes

Background:

The Alaska Volcano Observatory describes this volcano as follows, from Miller and Richter (1994): "The Skookum Creek eruptive center is an erosionally dissected complex that may, in part, be as young as Quaternary. It consists principally of a series of rhyolite, rhyodacite, and andesite domes and their associated pyroclastic deposits, with an age of about 3.7 Ma, and an extensive sequence of relatively flat-lying andesite flows, some of which have been dated at 2.8 Ma (Lowe and others, 1982). Both the domes and the flows are intruded by a few rhyodacite and andesitic dikes that appear to originate from a rhyodacite dome near the center of the complex. Relations between the volcanic units of the complex suggest that the flat-lying flows fill a caldera that is defined by the crude arcuate alignment of the domes."
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Source: Smithsonian / GVP volcano information


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