Volcan
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Publicado: 25 de junio de 2012
Volcano Facts
* Many scientists believe that all the water on the earth was originally vented into the atmosphere by volcanoes.
* The most dangerousvolcano today is Popocatepetl, nicknamed El Popo, which is just 33 miles from Mexico City. El Popo is still active, sending thousands of tons of gas and ash intothe air each year.
* Volcanologists use a special electric thermometer called a “thermocouple” to take a volcano’s temperature. Lava is so hot that a glassthermometer would melt.
* There are no active volcanoes in Australia because it sits in the middle of a tectonic plate.
* Volcanic eruptions bringnutrients such as potassium and phosphorus to the Earth’s soil.
* In 1963, an undersea volcano created the newest land mass on Earth, Surtsey Island, which liesoff the southwest coast of Iceland.
* The worst volcanic disaster of the twentieth century is considered to be the eruption of Mt. Pelée in 1902 on theisland of Martinique in the Caribbean which killed 30,121 people. Only two people survived: a shoemaker living on the edge of the island and a prisoner who had beenlocked in a dungeon cell with thick stone walls.
* There are approximately 1,500 active volcanoes, not counting undersea volcanoes. Of these, only about20-30 erupt in any one year.
* The Lake Toba supervolcanic eruption nearly 75,000 years ago in Indonesia plunged earth into a volcanic winter and wasresponsible for the formation of sulfuric acid in the atmosphere.
* The eruption of Mount St. Helens on May 18, 1980 had 500 times the power of an atomic bomb.
* Many scientists believe that all the water on the earth was originally vented into the atmosphere by volcanoes.
* The most dangerousvolcano today is Popocatepetl, nicknamed El Popo, which is just 33 miles from Mexico City. El Popo is still active, sending thousands of tons of gas and ash intothe air each year.
* Volcanologists use a special electric thermometer called a “thermocouple” to take a volcano’s temperature. Lava is so hot that a glassthermometer would melt.
* There are no active volcanoes in Australia because it sits in the middle of a tectonic plate.
* Volcanic eruptions bringnutrients such as potassium and phosphorus to the Earth’s soil.
* In 1963, an undersea volcano created the newest land mass on Earth, Surtsey Island, which liesoff the southwest coast of Iceland.
* The worst volcanic disaster of the twentieth century is considered to be the eruption of Mt. Pelée in 1902 on theisland of Martinique in the Caribbean which killed 30,121 people. Only two people survived: a shoemaker living on the edge of the island and a prisoner who had beenlocked in a dungeon cell with thick stone walls.
* There are approximately 1,500 active volcanoes, not counting undersea volcanoes. Of these, only about20-30 erupt in any one year.
* The Lake Toba supervolcanic eruption nearly 75,000 years ago in Indonesia plunged earth into a volcanic winter and wasresponsible for the formation of sulfuric acid in the atmosphere.
* The eruption of Mount St. Helens on May 18, 1980 had 500 times the power of an atomic bomb.
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