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The Yellowstone Caldera, sometimes referred to as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States. The caldera and most of the park are located in the northwest corner of the state of Wyoming. The caldera measures 43 by 28 miles (70 by 45 kilometers), and postcaldera ...
Name Elevation Location Last eruption meters feet Coordinates; Malumalu: Last 8,000 years Ta‘u-931: 3054: 30,000 years ago [15]: Ofu-Olosega: 639: 2096: 1866 unnamed submarine cone eruption
Mount Rainier is a stratovolcano in the Cascade Volcanic Arc that consists of lava flows, debris flows, and pyroclastic ejecta and flows. Its early volcanic deposits are estimated at more than 840,000 years old and are part of the Lily Formation (about 2.9 million to 840,000 years ago).
5,000. Part of at least 20 large caldera-forming eruptions in the San Juan volcanic field and surrounding area that formed around 26 to 35 Ma. [19][20] Lund Tuff. 29.2. Indian Peak-Caliente Caldera Complex. 4,400. Formed the White Rock Caldera, one of the largest eruptions of the Mid-Tertiary Ignimbrite flareup.
Hike via south slope of volcano (closest area near eruption site) Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, [1] in the Pacific Northwest region of the United States. It lies 52 miles (83 km) northeast ...
26.3 Ma (Fish Canyon Tuff 27.8 Ma) La Garita Caldera is a large caldera and extinct supervolcano in the San Juan volcanic field in the San Juan Mountains around the town of Creede in southwestern Colorado, United States. [1] It is west of La Garita, Colorado. The eruption that created the La Garita Caldera is among the largest known volcanic ...
This is the largest glacial valley on the volcano, although it does not now have a glacier in it. There are seven named glaciers on Mount Shasta, with the four largest ( Whitney , Bolam , Hotlum , and Wintun ) radiating down from high on the main summit cone to below 10,000 ft (3,000 m) primarily on the north and east sides. [ 4 ]
Sierra Grande is the largest volcano in the Raton-Clayton volcanic field. Its flows range in age from 3.8 to 2.6 million years. The volcano is largely composed of two- pyroxene andesite, a rock type found almost nowhere else in the Raton-Clayton volcanic field. [11]