Super Volcano - The Sleeping Giants
By: Artemis
08/01/05
A super volcano is the most destructive natural force on earth.
Super volcanoes produce the largest and most voluminous kinds of eruptions ever recorded throughout earth history. Most super volcanoes are what volcanologists call caldera volcanoes. Caldera volcanoes are formed after magma has been erupted and the volcano collapses into the voided chamber.
The largest known super volcano is the Siberian Traps in Russia, which had the largest volcanic event in the last 500 million years. The Siberian Traps eruption, which lasted over a million years has been blamed for the Permian-Triassic extinction event. This extinction event occurred 252 million years ago, when 90% of all marine life and 70% of all other life became extinct.
What most do not realize is the number of these sleeping giants that exist. When someone in the United States hears the word super volcano they think "Yellowstone", but Yellowstone isn't the only monster that exists.
Some caldera volcanoes located in North America are Yellowstone (WY), Crater Lake (OR), Long Valley (CA), Sturgeon Lake (Ontario), Valle Grande (NM).
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