The document summarizes several natural disasters including the 2010 Haiti earthquake, Mount St. Helens eruption, Mount Pinatubo eruption, the 1930s Dust Bowl, and the 2011 Tohoku earthquake and tsunami in Japan. It provides key details about each event such as the magnitude of earthquakes, number of casualties, damage caused, and relief efforts.

1. Natural and Man Made
Disasters
Mr. Silva’s Awesome AP
Environmental 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. Tsunami
3 meter waves.
3 killed.
62 miles from epicenter.

5. Haiti, 2010: Overview
Marco, Destiny
It was a 7.0 magnitude earthquake.
Death toll at 316,000.
Strike-Slip Fault caused the earthquake
Caribbean 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/Strength
Magnitude 7 Earthquake
316,000 pronounced dead.
"A very big wave" hit and swept out three people to sea.

8. Bibliography
http://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

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,http://www.boston.com/bigpicture/2010/05/mount_st_helens_30_years_ago.html
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:

21. 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

22. 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

23. 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

24. 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.

25. Northern Texas, Oklahoma, New Mexico, Colorado, Kansas
The sand and dust blew into the northern states

27. 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.

28. 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

29. Farming Now
Smarter Farming:
- Crop Rotation
- Strip Cropping
- Contour Plowing
Farmers were paid to practice these
techniques

30. Bibliography
http://www.livinghistoryfarm.org/farminginthe30s/water_02.html
http://www.pbs.org/kenburns/dustbowl/
http://www.ldeo.columbia.edu/res/div/ocp/drought/dust_storms.shtml
http://www.english.illinois.edu/maps/depression/dustbowl.htm

31. 2011 Tohoku Earthquake and Tsunami
By: Matthew Koen and Mikayla Kopp

32. -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

33. -Evacuations ordered along Japan’s
Pacific coast and at least 20 other
countries
-This much destruction occurred in 5
minutes

34. - 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.

35. - Caused Nuclear accidents
- Three nuclear reactors suffered explosions
and nuclear leakage.
- Over 200,000 people were evacuated