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Wapi Lava Field volcano

shield volcano 1604 m / 5,262 ft
Idaho, USA (mainland exept Alaska), 42.88°N / -113.22°W
Current status: normal or dormant (1 out of 5) | Reports
Wapi Lava Field volcano books
Typical eruption style: effusive
Wapi Lava Field volcano eruptions: 300 BC (?) Kings Bowl and Great Rift from air. King's Bowl is a phreatic explosion pit 280 feet (90 m) long, 100 feet (30 m) wide, and 100 feet (30 m) deep, caused by lava meeting groundwater and producing a steam explosion 2,200 years ago. (NPS photo) No recent earthquakes
TimeMag. / DepthDistanceLocation
The Wapi lava field, SE of the Craters of the Moon, Idaho, is a low shield volcano that formed during an eruption about 2250 years ago, which produced about 6 cubic km of fluid pahoehoe lava flows. It covers about 325 km2, and consists of a low shield volcano, which partly overlaps the nearby Craters of the Moon lavas.

Background:

The small King's Bowl rift immediately to the north was also formed at about the same time along a central eruptive fissure flanked by two parallel non-eruptive fissures. This eruption produced a phreatic explosion that created Kings Bowl, an 80-m-long, 30-m-deep explosion crater.
The vent area of the Wapi field lies along the Great Rift of the Craters of the Moon and consists of 5 major and a half dozen minor vents covering an area of 0.5 km2. The largest of the vents contains several pit craters that truncate lava lakes that filled the crater.
Pillar Butte, a mass of layered lava flows and agglutinates, forms the high point of the lava shield. The Split Butte maar to the west is partially overlapped by flows of the Wapi lava field.
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Source: GVP Wapi volcano information


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