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Map of Long Valley Caldera Early winter in Long Valley, 2017. Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain.The valley is one of the Earth's largest calderas, measuring about 20 mi (32 km) long (east-west), 11 mi (18 km) wide (north-south), and up to 3,000 ft (910 m) deep.
Kapenga Caldera Taupō Volcanic Zone: Unknown 680 Matahana A 7 Kapenga Caldera Taupō Volcanic Zone: Unknown 710 Waiotapu Ignimbrite 7 Long Valley Caldera: Eastern California: 790 760 Bishop Tuff: 7 Kapenga Caldera Taupō Volcanic Zone: Unknown 830 Matahana B 7 Calabozos: Andes, Southern Volcanic Zone Unknown 840 Loma Seca Tuff-Unit L 8 ...
Many geological features in Western United States have a Northeastern orientation, the North American craton motion has the same orientation as well. [1] For example: the Trans-Challis fault zone, Idaho; the Snake River in Oregon; the Garlock Fault, California; the Colorado River in Utah; the Colorado Mineral Belt; Crater Flat-Reveille Range-Lunar Crater lineament, the Northwestern Nevada ...
The Long Valley Caldera in California is about 10 miles wide. And one of the most famous calderas in the world, at Yellowstone National Park, measures 30 miles by 45 miles, according to the U.S ...
The Long Valley Caldera was formed by a super-eruption about 760,000 years ago that blasted 140 cubic miles of magma, covering much of east-central California in hot ash that was blown as far away ...
Location Last eruption meters ... Long Valley Caldera: 3390: 11,122 ... Virgin Valley Caldera---16.38 million years ago Yucca Mountain: 2044: 6707
Location of Yellowstone hotspot over time. Numbers indicate millions of years before the present. Satellite image of Lake Toba, the site of a VEI 8 eruption c. 75,000 years ago Cross-section through Long Valley Caldera. Supervolcanoes occur when magma in the mantle rises into the crust but is unable to break through it. Pressure builds in a ...
In 2012, the Long Valley Observatory was integrated into the new California Volcano Observatory based in Menlo Park, California which covers the entire states of California and Nevada, this includes the southern Cascade Range volcanoes in the state of California which were previously under the jurisdiction of the Cascades Volcano Observatory. [3]