Ukinrek Maars description and statistics

Type:	Two maars
Most Recent Activity:	March 30, 1977
Seismically Monitored:	Yes
Current Color Code:	GREEN
Distance:	324 mi (521 km) from Anchorage
Elevation:	299 ft (91 m)
Latitude:	57.8338° N
Longitude:	156.5139° W
Quadrangle:	Ugashik
CAVW Number:	1102-131
Sample Image:	More Ukinrek Maars images ...
Location Map:
Synonyms:	Ukinrek craters
Associated Features:	West Maar East Maar

From Miller and others (1998): "Ukinrek Maars are a pair of phreatomagmatic explosion vents that formed on a low (less than 100 m high), 4-km-long, ridge in the Bering Sea Lowland 1.5 km south of Becharof Lake and 12 km northwest of Peulik Volcano. West Maar, elliptical in shape and up to 170 m in diameter and 35 m deep, formed on the northwest end of the ridge (Kienle and others, 1980). East Maar lies 600 m east of West Maar at a lower elevation. It is circular, up to 300 m in diameter and 70 m deep, and has a 49-m-high central lava dome that is now partly covered by a crater lake. Location of the maars apparently coincides with, and may be controlled by, the intersection of the Bruin Bay fault and regional structures (Kienle and others, 1980; Detterman and others, 1983)."