Transcript Natural Disasters - Doral Academy Preparatory

Natural Disasters
Disaster Database
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Avalanche
Earthquakes
Hurricanes
Landslides
Thunderstorms
Tornados
Tsunami
•Resources
Volcanoes
•Concept Map
•About the Author
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Avalanches
• Avalanches Happen on every continent
• Avalanche Season is during the “winter time”
or December-April in the United States
• A large scale can release up to 300,000 cubic
yards of snow
• Avalanches are more commonly released by
Click on Image for
recreationists than by natural causes
An Avalanche
Video
• The biggest factor of avalanche possibility is
the accumulation snow over the winter season
– More snow = bigger avalanche
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Earthquakes
• Earthquakes are caused by the
release of built up pressure caused
by the shifting of tectonic plates
• Earthquakes usually occur on fault
lines, or areas where tectonic
plates meet
• The size of an earthquake is
measured using the logarithmic
based Richter scale
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An aerial view of the San
Andreas fault in the
Carrizo Plain, Central
California
Hurricanes
• A hurricane is a tropical storm
with winds over 74mph
• Hurricanes occupy the most
intense level of the three
levels of tropical storms
• Hurricanes rotate or circulate
counter-clockwise in the
northern hemisphere
• Hurricanes can only occur
over the Atlantic ocean,
Caribbean sea, and gulf of
Mexico
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View of a Hurricane from Space
Landslides
• Landslides are the movement of land
down a slope by gravity
• Landslides are mother nature’s way
of redistributing land
• They can be triggered by rain, floods,
and earthquakes as well as manmade factors such as slope grading or
mining
• Landslides have the potential to
happen anywhere a steep slope is
present
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Thunder Storms
• Every Thunderstorm produces
lightning
• There is wet thunder and dry
thunder, the difference being
whether or not rain in produced
• Warm humid conditions favor
thunderstorms
• Only 10% of thunderstorms are
classified as severe
• Your chance of being struck by
lightning is 1 in 600,000
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Multiple Lightning Strikes and a
Supercell Thunderstorm formation
Tornados
• A tornado is defined as a violently
rotating column of air extending
from a thunderstorm to the ground
• Tornados are found in almost every
part of the world
• Tornados are most common in the
United States, just east of the Rocky
Mountains in an area called Tornado
Ally
• Waterspouts are weak tornados
over water and can move inland and
become tornados
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Click on Image to View
a Tornado Chaser’s
Video
Tsunamis
• On the seafloor, volcanic
eruptions, earthquakes, and
even landslides can lead to
tsunamis
• Tsunamis can travel over
300mph
• Tsunamis can have an amplitude
of up to 32ft
• Hawaii is the most vulnerable
place in the world for tsunamis
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Click On Image To view Some
Tsunami Footage
Volcanoes
• Volcanoes are lava filled mountains that erupt when the
pressure becomes to great for them to hold it inside
• The contents that a volcano spews forth is called magma
when it’s below the surface and lava once it reaches the
surface
• Only a fraction of the world’s volcanoes are actually on
land, the rest are on the ocean floor
• Indonesia has the most volcanoes of all the countries in
the world
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Resources
INFO
•http://nsidc.org/snow/avalanche/
•http://pubs.usgs.gov/gip/earthq1/
•http://www.nhc.noaa.gov/HAW2/english/basics.shtml
•http://www.fema.gov/hazard/thunderstorm/index.shtm
•http://www.nssl.noaa.gov/edu/safety/tornadoguide.html
•http://www.honolulu.gov/ocda/tsunami.htm
•http://www.honolulu.gov/ocda/tsunami.htm
•http://www2.scholastic.com/browse/article.jsp?id=4886
•http://www.ussartf.org/landslides.htm
IMAGES
•http://bp2.blogger.com/_6Y-NXZmDcxU/R00BlI_HOCI/AAAAAAAAAbk/BQb-y1gOOag/s1600-h/tornado_lightning.jpg
•http://environmentdebate.files.wordpress.com/2007/04/extreme-weather.jpg
•http://theconservativemanifesto.blogtownhall.com/2008/01
•http://www.floridalightning.com/files/Supercell_Thunderstorm.jpg
•http://www.thelmagazine.com/lmag_blog/files/Images/lightning.jpg
•http://rumela.com/travel/paricutin_volcano_index.htm
•http://current.com/items/88903589_colombian_volcano_erupts_thousands_flee
•http://blog.lib.umn.edu/salwa002/architecture/
•http://www.destination360.com/central-america/costa-rica/arenal-volcano.php
•http://kshitija.wordpress.com/2006/06/08/landslides-prevention/
VIDEO
•http://www.youtube.com/watch?v=B0RWLxOFGLY
•http://www.youtube.com/watch?v=kEUXr6FMtWk
•http://livesaildie.com/2007/04/
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Concept Map
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About the Author
•Ben Darin 19 yrs old and is currently in his second
year at Grand Valley State University
•He is studying Elementary Education with an
emphisis in Integrated Science and hope to
eventually be able to teach 3rd grade some day
•Ben has one younger brother, Eric who is currently a
senior at Comstock Park High School
•If you have any questions, comments or concerns
please feel free to contact him at
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[email protected]
Return to
Avalanches
Click On the Image For Video of
Avalanches