Volcano

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In History
  • In the middle 1800s, a number of small eruptions took place

    In the middle 1800s, a number of small eruptions took place
  • Between 1832 and 1857, St Helens puffed out clouds of steam and ashes from time to time.

    Between 1832 and 1857, St Helens puffed out clouds of steam and ashes from time to time.
  • Mount Hood active 7,000-1,000 years B.P

    Mount Hood active 7,000-1,000 years B.P
  • Mount Baker active durning last 200 years

    Mount Baker active durning last 200 years
  • In 1975, two geologists finished a study of the volcano's past eruptions

    In 1975, two geologists finished a study of the volcano's past eruptions
  • With the earthquake of March 20 1980, Mount St. Helens woke from a sleep of 123 years

    With the earthquake of March 20 1980, Mount St. Helens woke from a sleep of 123 years
  • Mount St. Helens partally covered with volcccanic ash, April 1980

    Mount St. Helens partally covered with volcccanic ash, April 1980
  • An eruption on March 19, 1982, melted snow and caused this mudflow. The smaller part of the flow went into Spirt Lake, while the larger part traveled down the Toutle River

    An eruption on March 19, 1982, melted snow and caused this mudflow. The smaller part of the flow went into Spirt Lake, while the larger part traveled down the Toutle River
  • Arnica flowers blooming on the Lang Ridge in 1984, four years after the eruption of Mount St. Helens

    Arnica flowers blooming on the Lang Ridge in 1984, four years after the eruption of Mount St. Helens