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  2. List of volcanoes in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_volcanoes_in_the...

    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

  3. Yellowstone Caldera - Wikipedia

    en.wikipedia.org/wiki/Yellowstone_Caldera

    With 1,620 small earthquakes between January 17, 2010, and February 1, 2010, this swarm was the second-largest ever recorded in the Yellowstone Caldera. The largest of these shocks was a magnitude 3.8 that occurred on January 21, 2010. [34] [37] This swarm subsided to background levels by February 21.

  4. Sierra Grande - Wikipedia

    en.wikipedia.org/wiki/Sierra_Grande

    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.

  5. List of volcanoes by elevation - Wikipedia

    en.wikipedia.org/wiki/List_of_volcanoes_by_elevation

    Mexico – highest volcano in North America; highest peak in Mexico: Mount Damavand: 5,610: 18,406: Iran – highest volcano within Asia; highest peak in Iran ...

  6. List of largest volcanic eruptions - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_volcanic...

    In a volcanic eruption, lava, volcanic bombs, ash, and various gases are expelled from a volcanic vent and fissure. While many eruptions only pose dangers to the immediately surrounding area, Earth's largest eruptions can have a major regional or even global impact, with some affecting the climate and contributing to mass extinctions.

  7. Texas has over 200 volcanoes. But are any of them active ...

    www.aol.com/texas-over-200-volcanoes-them...

    800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. ... is the largest extinct volcano in Texas. It is the only ...

  8. Supervolcano - Wikipedia

    en.wikipedia.org/wiki/Supervolcano

    A supervolcano is a volcano that has had an eruption with a volcanic explosivity index (VEI) of 8, [1] the largest recorded value on the index. This means the volume of deposits for such an eruption is greater than 1,000 cubic kilometers (240 cubic miles). [2] Location of Yellowstone hotspot over time.

  9. One of California's riskiest volcanoes has been seeing more ...

    www.aol.com/news/more-quakes-one-californias...

    800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. ... (California’s largest reservoirs are close to the Shasta and Lassen volcanoes). Mt. Shasta, California's largest volcano, had ...