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9.1 natural and man made disasters
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9.1 natural and man made disasters


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  • 1. Natural and Man Made Disasters Mr. Silva’s Awesome APEnvironmental Science Class Student Work
  • 2. Haiti Before The Quake -Palaces and slums ->$2/day -Peaceful and growing -hills
  • 3. After The Quake -7.0 magnitude quake -3,500,000 people affected -Relief aid .5 mil homeless. 100,000 buildings, 250,000 people
  • 4. Tsunami3 meter waves.3 killed.62 miles from epicenter.
  • 5. Haiti, 2010: OverviewMarco, 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.
  • 6. 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
  • 7. Damage/StrengthMagnitude 7 Earthquake316,000 pronounced dead."A very big wave" hit and swept out three people to sea.
  • 8. Bibliography
  • 9. Mt. Saint Helens
  • 10. Mount Saint Helens Brittany & Hunter• 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. Located in Skamania, Washington
  • 11. 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.
  • 12. 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.
  • 13. Mount Saint Helens
  • 14. ount Saint Helens Six feet of ash
  • 15. Mount Saint Helens Brittany &Hunter 9,667ft 8,364ft
  • 16. Mount Pinatubo By: Josh and Hannah
  • 17. Before:After:
  • 18. 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
  • 19. 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
  • 20. Bibliography:
  • 21. Dust Bowl of the 1930s-Caused by over farming and overuse of the land.- A giant area of land in the southern plains during the 1930s was depleted of all the nutrients in thesoil and caused giant dust storms.- The natural grasses were killed off. Drought and winds carried the the top soil away.
  • 22. Northern Texas, Oklahoma, New Mexico, Colorado, Kansas The sand and dust blew into the northern states
  • 23. 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.
  • 24. Acts of the Dust Bowl- May 1933, The Farm Mortgage Act:$200 million dollars to help refinancefarmers- 1934 Great Dust storms spread toother states, covering and affectingover 75% of the country.- 1935, Soil Erosion Act- 1939, Rain finally comes and ends thedrought
  • 25. Farming NowSmarter Farming: - Crop Rotation - Strip Cropping - Contour PlowingFarmers were paid to practice thesetechniques
  • 26. Bibliography
  • 27. 2011 Tohoku Earthquake and Tsunami By: Matthew Koen and Mikayla Kopp
  • 28. -9.0 magnitude-Friday March 11, 2011-epicenter was 130 kilometers or81 miles-The focus occurred at a depth of32 km(19.9 mi)- waves of up to 10 meters (33 ft
  • 29. -Evacuations ordered along Japan’sPacific coast and at least 20 othercountries-This much destruction occurred in 5minutes
  • 30. - On september 12, 2011, The police agency of japanreported the casualties.- 15,780 people were reported dead.- 6,114 people were reported injured- 2,814 people were reported missing.
  • 31. - Caused Nuclear accidents- Three nuclear reactors suffered explosions and nuclear leakage.- Over 200,000 people were evacuated