Saturday, February 12, 2005
Did you know?
- When Mount St.Helen erupted on May 18 of 1980, it was considered dormant (asleep) for a period of one hundred years before it "woke up" again. This eruption cost the lives of 58 people and $1.2 billion in damages.
- There are more than 500 active volcanoes, in the world.
- During the Mount St. Helen's eruption, a lateral blast of rock debris moved at a speed of 250 miles per hour.
- About 6, 600 years ago, a volcano that lost his top due to a series of violent eruptions was responsible for the creation of Crater Lake.
- The origin of the Earth's surface is more than 80% volcanic.
- The ocean floor and some mountains were created by multiple volcanic eruptions.
- The Earth's atmosphere was formed by volcanic gaseous emissions.
# posted by kevin : 10:36 PM
