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Table Top Mountain description and information


Official Name: Table Top Mountain
Type:Pyroclastic cone
Most Recent Activity:
Seismically Monitored: No
Elevation: 2598 ft (792 m)
Latitude: 53.9671° N
Longitude:166.679° W
CAVW Number:
Pronunciation: Sound file
Nearby towns:Unalaska 9 mi (14 km) SE
Akutan 39 mi (62 km) NE
Nikolski 115 mi (185 km) SW
False Pass 145 mi (233 km) NE
Anchorage 793 mi (1277 km) NE
From Miller and others (1998): "Tabletop Mountain, the eroded remains of of a pyroclastic cone encircled by flows originating from small flank vents, is 20 km northeast" of Makushin Volcano. Table Top is considered to be Holocene in age, and to represent a magmatic system separate from that of Makushin (Nye, personal commun., 2007). From McConnell and others (1997): "An 40Ar/39Ar age of 68+/-14 ka places this unit as the oldest satellite vent. Basaltic lavas and tephra from Table Top Mountain northeast of Makushin Volcano and a small, glaciated ramp of lava north and west of the cone."
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Page modified: June 12, 2014 07:20
Contact Information: AVO Web Team

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