New conclusions surface about the mighty supervolcano in Yellowstone National Park, often cited for a massive eruption that covered the region in hot ash.
American West Geology
Yellowstone supervolcano imagery shows underground plume larger than earlier seismic readings indicate
New images from the University of Utah suggest that the large plume of partly molten rock underneath Yellowstone may be larger than previously believed. However, no predictions of when a cataclysmic eruption of the famed supervolcano might occur were offered.
Glaciologist: Central Alaska Range glacier advances
The lower portion of the McGinnis Glacier was observed covered in cracks, crevasses and ice pinnacles — evidence that the glacier moved forward.
Yellowstone volcanic crater changes tied to molten rock movement
It is believed that about 640,000 years ago (during the Pleistocene epoch), a massive volcano erupted, creating a caldera in the center of what is now Yellowstone National Park.
River sediment buildup may be a factor in certain subduction zone earthquakes
Over millions of years, sediment typically accumulates to great depths, from one-half mile to nearly 2 miles, and in rare cases, 3 miles deep.
