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Yellowstone National Park

Yellowstone National Park. Marci Allen. Yellowstone. Yellowstone National Park has a variety of elements that were discussed in class Not only is it a hot spot, as mentioned, but it is the home to volcanoes, earthquakes, hot pots, and wild fires. .

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Yellowstone National Park

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  1. Yellowstone National Park Marci Allen

  2. Yellowstone • Yellowstone National Park has a variety of elements that were discussed in class • Not only is it a hot spot, as mentioned, but it is the home to volcanoes, earthquakes, hot pots, and wild fires. Note: All photographs were taken by Marci Allen unless indicated otherwise

  3. Yellowstone Caldera • The Yellowstone Caldera is the largest volcanic system in North America • Also known as “super volcano” • The Caldera’s first eruption occurred 640,000 years ago • Since then, there have been more than 80 eruptions • A caldera is created when a magma chamber collapses, causing a massive eruption. • There are no predictions of when the next eruption will occur.

  4. Geysers • Yellowstone has 300 geysers (2/3 of the total geysers in the world) • The most famous geyser is Old Faithful • The largest geyser is the Steamboat Geyser • Yellowstone contains 10,000 other geothermal features

  5. Old Faithful • More than 137,000 eruptions have been recorded • Shoots 3,700-8,400 gallons of water up to 185 feet • Eruptions last 1.5-5 minutes • Earthquakes have caused time between eruptions to increase • In 1939 the average interval was 66.5 minutes but now the average is 90 minutes Old Faithful

  6. Geothermal Features

  7. Earthquakes • Yellowstone experiences thousands of small earthquakes each year • There have been six earthquakes with a magnitude of 6 or higher • In 1959 there was 7.5 earthquake that caused a landslide that broke a dam on Hebgen Lake, creating a new lake called Quake Lake • 28 people died • Caused geysers to erupt Hebgen Lake

  8. Wild Fires • Lightening causes 35 fires each year • People cause 6-10 fires each year • Most fires burn about an acre of land before they burn out • To reduce threats, controlled burns are performed • In 1988 there was an extreme drought • Seven fires burned 793,000 acres of land in just a few months • More regulations and restrictions were created to prevent this from happening again Fire near Yellowstone in 2007

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