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  2. Sunset Crater - Wikipedia

    en.wikipedia.org/wiki/Sunset_Crater

    The Sunset Crater eruption peaked at VEI 4 (Sub-Plinian), produced a total 0.52 km 3 of ejecta, [9] had an eruption column between 20-30km tall [10] and produced a blanket of ash and lapilli covering an area of more than 2,100 square kilometers (810 sq mi), which forced the temporary abandonment of settlements of the local Sinagua people.

  3. Coso Volcanic Field - Wikipedia

    en.wikipedia.org/wiki/Coso_Volcanic_Field

    Obsidian from the Coso Volcanic Fields was heavily exploited by Native American Coso People to make knives, projectile points, and the like (Hughes 1998). The chief period of exploitation was between approximately 3000 and 1000 years ago, when people mined obsidian by constructing benches in hillsides and digging deep pits to access raw materials (Elston and Zeier 1984; Gilreath and Hildebrand ...

  4. San Francisco volcanic field - Wikipedia

    en.wikipedia.org/wiki/San_Francisco_volcanic_field

    The field contains 600 volcanoes ranging in age from nearly 6 million years old to less than 1,000 years (Miocene to Holocene), of which Sunset Crater is the youngest. [1] The highest peak in the field is Humphreys Peak , at Flagstaff's northern perimeter: the peak is Arizona's highest at 12,633 feet (3,851.5 m) and is a part of the San ...

  5. Here's what Sunset Crater looks like after the Tunnel Fire in ...

    www.aol.com/news/heres-sunset-crater-looks...

    Sunset Crater Volcano National Monument closed in April 2022 when a fire swept through. But fire has always been part of the park's story. Here's why.

  6. Timeline of volcanism on Earth - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_volcanism_on_Earth

    1452/1453 mystery eruption in the New Hebrides arc, Vanuatu; the location of this eruption in the South Pacific is uncertain, as it has been identified from distant ice core records; the only pyroclastic flows are found at Kuwae; 36 to 96 km 3 (8.6 to 23.0 cu mi) of tephra; 175,000,000–700,000,000 t (193,000,000–772,000,000 short tons) of ...

  7. California Volcano Observatory - Wikipedia

    en.wikipedia.org/wiki/California_Volcano_Observatory

    The California Volcano Observatory (CalVO) is the volcano observatory that monitors the volcanic and geologic activity of California and Nevada. It is a part of the Volcano Hazards Program of the United States Geological Survey , a scientific agency of the United States government .

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

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

    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 ...

  9. Incurable silicosis cost a countertop cutter his lungs. Are ...

    www.aol.com/news/incurable-silicosis-cost...

    In California, dozens of workers with silicosis have lodged lawsuits against companies like Cambria and Caesarstone. Reyes Gonzalez is the first of them to go to trial, according to his attorneys.

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