Mt.+Pinatubo

=Mount Pinatubo =

**Type of volcano-**Strato Volcano


 * Elevation above sea level **- 4,872 ft.


 *  Where this volcano is located -** The island of Luzon in the Philippines


 *  Date of discovery -**35,000 Years Ago


 *  Provide a picture of this volcano -**

1991 500 years ago 3000 years ago 5,500 years ago
 * Dates of its notable eruptions and number of historical eruptions -**

Negative-Many people died and became homeless, ash caused heavy rains and typhoons, earthquakes, ejected tons of sulfur dioxide gas
 *  Positive and negative effects of the volcanic eruptions on: the **
 *  environment, people, etc. -**

Positive-Sulfuric acid got into the stratosphere and cooled down the earth, vast quantities of minerals and metals were brought to the surface, a positive phase of the Arctic Oscillation has slowly strengthened over the few last decades and has been associated in prior research with observed climate warming.

Volcano

Pictures-

= Articles =

Mt Pinatubo 1991 Eruption
Up to 800 people were killed and 100,000 became homeless following the Mount Pinatubo eruption, which climaxed with nine hours of eruption on June 15, 1991. Tons of sulfur dioxide was discharged into the atmosphere. That made the earth cool down a lot. It actually helped the earth from over heating. The events of the 1991 Mount Pinatubo eruption began in July 1990, when a magnitude 7.8 earthquake occurred 100 kilometers (62 miles) northeast of the Pinatubo region, determined to be a result of the reawakening of Mount Pinatubo. It was dormant for 500 years. It erupted 3 times before the 1991 eruption. In mid-March people began feeling earthquakes so scientist began studying the mountain. The eruption plume of Mount Pinatubo's various gases and ash reached high into the atmosphere within two hours of the eruption, attaining an altitude of 34 km (21 miles) high and over 400 km (250 miles) wide. The ash settled on the houses near. The ash caved in roofs injuring many people and killing some too. This eruption was the largest disturbance of the stratosphere since the eruption of Krakatau in 1883 (but ten times larger than Mt Saint Helens in 1980). The aerosol cloud spread around the earth in two weeks and covered the planet within a year. During 1992 and 1993, the Ozone hole over Antarctica reached an unequal size. Link- http://geography.about.com/od/globalproblemsandissues/a/pinatubo.htm

Giving Up Clark-Baltimore Sun
The eruption of Mt. Pinatubo in 1991 helped solve problems between the Philippines and the United States. The United States military is leaving Clark Base and coming back to America. The base now is an oversea prototype. It has housed many people who wanted to clime Mt. Pinatubo. The base is located 10 miles away from the Mt. Pinatubo. It's eruption has caused some conflict for the Philpino workers who work there. The US thinks Clark is just not worth it. It would take too much to get it all together. The US now want to renew a lease with the Philippines for a major ship yard about 25 miles away from the mountain. Within this agreement the US will have to try and clean up after the eruption. They would have to remove ash and have to restore facilities where the eruption caused severe problems. This would also help restore relations between the Unites States and other countries. Link- http://articles.baltimoresun.com/1991-07-18/news/1991199060_1_mount-pinatubo-clark-subic-bay

Mount Pinatubo Summery
On the day of June 15. 1991, Mt. Pinatubo erupted. The eruption of the 5,770 foot volcano caused many problems. Within 21 days after the eruption, the sulfur dioxide from it was in the atmosphere causing temporary global warming. This helps contribute damage to the ozone nowadays. The island of Luzon, where Mt. Pinatubo is located, has 13 active volcano's! This was the first eruptions from Mt. Pinatubo in the last 600 years. In April before the eruption, steam eruptions, earthquakes, increasing sulfur dioxide emissions, and rapid growth of a lava dome indicated an even bigger, more powerful blast. But, before the final eruptions, minor ones began days before. There was an estimated 42,000 homes and 100,000 acres of crops were destroyed. Around 900 people died and about 20,000 left to live in tents around the city. The already struggling country lost over 1 billion dollars from this disaster. On the other hand, many people were saved and the country has gotten better. Link- http://www.bookrags.com/research/mount-pinatubo-enve-01/

=Exposion =

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