9.1 natural and man made disasters
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Transcript of 9.1 natural and man made disasters
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Natural and Man Made Disasters
Mr. Silva’s Awesome APEnvironmental Science Class Student Work
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Haiti Before The Quake
-Palaces and slums
->$2/day
-Peaceful and growing
-hills
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After The Quake-7.0 magnitude quake
-3,500,000 people affected
-Relief aid
.5 mil homeless.
100,000 buildings, 250,000 people
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Tsunami
3 meter waves.
3 killed.
62 miles from epicenter.
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Haiti, 2010: Overview
Marco, DestinyIt was a 7.0 magnitude earthquake.Death toll at 316,000.Strike-Slip Fault caused the earthquakeCaribbean and North American plates. Enriquillo-Plantain Garden Fault had not moved in 200 years building up pressure.
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History of Disaster
• The island of Hispaniola which is shared by Haiti and the Dominican Republic is seismically active and has a history of destructive earthquakes.
• Earthquakes recorded by Moreau de Saint-Méry when Haiti was a French Colony happened in 1751, 1770 Port-au-Prince.
• Other towns in Haiti and the Dominican Republic were destroyed in May 1842.
• A 8.0 earthquake was recorded on August 1946, producing a tsunami that killed 1,790
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Damage/Strength
Magnitude 7 Earthquake316,000 pronounced dead."A very big wave" hit and swept out three people to sea.
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Bibliographyhttp://www.foreignpolicy.com/articles/2010/01/14/requiem_for_port_au_prince
http://www.dec.org.uk/haiti-earthquake-facts-and-figures
http://www.nature.com/news/2010/100225/full/news.2010.93.html
http://minnesota.publicradio.org/display/web/2011/01/11/haiti-earthquake-facts/
en.wikipedia.org/wiki/2010_Haiti_earthquake
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Mt. Saint Helens
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Mount Saint Helens Brittany & Hunter
Located in Skamania, Washingtonhttp://www.boston.com/bigpicture/2010/05/mount_st_helens_30_years_ago.html
• The mountain was estimated to start forming at around the early 15th century.
• It was generally formed by volcanic eruptions and flows over a long period of time.
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Mount Saint Helens
Basically the Juan de Fuca plate is smashing up against the North American Plate and is sinking below it (It being a oceanic plate) which is allowing magma to rise up.
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Eruption
• The eruption was preceded by a two-month series of earthquakes and steam-venting episodes.
• An earthquake on May 18, 1980 caused the entire weakened north face to slide away, suddenly exposing the partly molten, gas- and steam-rich rock in the volcano to lower pressure.
• The rock basically responded by exploding a hot mix of lava and pulverized rock toward Spirit Lake so quickly that it overtook the avalanching north face.
• All in all... epic.
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Mount Saint Helens
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Mount Saint Helens
Six feet of ash
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Mount Saint Helens Brittany & Hunter
9,667ft
8,364ft
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Mount PinatuboBy: Josh and Hannah
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Before:
After:
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Mount Pinatubo:
• Took place on the Island of Luzon in the Philippines
• A warning was sent out on June 5th, 1991 and then again on June 9th, 1991
• The eruption of Mount Pinatubo began on June 15th,
1991 at 1:42 pm
• The eruption lasted for 9 hours
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Mount Pinatubo:
• Up to 800 people were killed and 100,000 became homeless
• Tons of sulfur dioxide was discharged
• A decrease in temp. was a result of the discharge
• The eruption is known as the second-largest volcanic eruption of this century
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Bibliography:
http://images.travelpod.com/tripwow/photos/ta-00e2-e19c-24bb/mount-pinatubo-philippines-philippines+1152_12975434533-tpfil02aw-20792.jpg
http://libraryphoto.cr.usgs.gov/htmllib/btch406/btch406j/btch406z/btch406/ctj00013.jpg
http://en.wikipedia.org/wiki/File:Pinatubo_dust_layer.jpghttp://
http://en.wikipedia.org/wiki/Mount_Pinatubo
http://www.seahorsetours.com/images/pinatubocrater1.jpg
www.universetoday.com/wp-content/uploads/2010/08/Mt.-Pinatubo.jpg
http://www.guardian.co.uk/environment/2009/oct/21/geo-engineering
http://geography.about.com/od/globalproblemsandissues/a/pinatubo.htm
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Dust Bowl of the 1930's-Caused by over farming and overuse of the land.- A giant area of land in the southern plains during the 1930's was depleted of all the nutrients in the soil and caused giant dust storms. - The natural grasses were killed off. Drought and winds carried the the top soil away.
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Northern Texas, Oklahoma, New Mexico, Colorado, Kansas
The sand and dust blew into the northern states
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About the Dust Bowl
-The dust bowl lasted about a decade.
-Children went to school wearing masks and people put wet sheets over their windows attempting to keep the dust particles out.
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Acts of the Dust Bowl
- May 1933, The Farm Mortgage Act: $200 million dollars to help refinance farmers- 1934 Great Dust storms spread to other states, covering and affecting over 75% of the country.- 1935, Soil Erosion Act - 1939, Rain finally comes and ends the drought
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Farming Now
Smarter Farming:- Crop Rotation- Strip Cropping- Contour Plowing
Farmers were paid to practice these techniques
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Bibliographyhttp://www.livinghistoryfarm.org/farminginthe30s/water_02.htmlhttp://www.pbs.org/kenburns/dustbowl/http://www.ldeo.columbia.edu/res/div/ocp/drought/dust_storms.shtmlhttp://www.english.illinois.edu/maps/depression/dustbowl.htm
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2011 Tohoku Earthquake and Tsunami
By: Matthew Koen and Mikayla Kopp
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-9.0 magnitude-Friday March 11, 2011-epicenter was 130 kilometers or 81 miles-The focus occurred at a depth of 32 km (19.9 mi)- waves of up to 10 meters (33 ft
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-Evacuations ordered along Japan’s Pacific coast and at least 20 other countries-This much destruction occurred in 5 minutes
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- On september 12, 2011, The police agency of japan reported the casualties.- 15,780 people were reported dead.- 6,114 people were reported injured- 2,814 people were reported missing.
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- Caused Nuclear accidents
- Three nuclear reactors suffered explosions and nuclear leakage.
- Over 200,000 people were evacuated
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