Geohazards

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Geohazards
List as many geohazards as you can
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Death Valley Big Fault Zone (earthquake zone)
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Impact Craters Evidence that we have been
bombarded from space !
Arizona, USA 20,000-50,000 years old
1908 Siberian Impact Site
http//geology.com/meteor-impact-craters.shtml
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Explosive Volcanic Eruptions
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Effusive Volcanic Eruptions
Under water
On land
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India Smashing into Tibet to Create the Himalayas
Darjeeling
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Tsunami Caused by Earthquakes or Landslides
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Landslides Gravity, Earthquake, Monsoon and
Volcanic Activity Triggers
Bangladesh
Colorado USA
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Geohazards
Hazard Plate Margin(s) What causes the hazard
Earthquakes
Effusive Volcanic Eruptions
Explosive Volcanic Eruptions
Landslides
Tsunamis
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Relate Geohazard to Plate Tectonics
On your table, write in pencil which plate
boundary(s) the hazard is triggered by
Landslide
Earthquake
Tsunami
Explosive Volcanism
Effusive Volcanism
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Hot Spots Volcanics Throughout Geological Time
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Hot Spots Not Associated With Plate Tectonics

• Hot spots and mantle plumes
• Caused by rising plumes of deep mantle material
• Volcanoes can form over them (Hawaiian Island
  chain)
• Mantle plumes
• Long-lived structures
• Some originate at great depth, perhaps at the
  mantle-core boundary

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The Hawaiian Islands
http//www.classzone.com/books/earth_science/terc/
content/investigations/es0810/es0810page03.cfm
http//www.edumedia-sciences.com/en/a99-hot-spot-v
olcanism
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HAITI
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Causes of the Haiti Earthquake HW
Research the causes of the Haiti Earthquake,
using pictures to illustrate. No more than one
side
Due next lesson
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Sometimes, animals act strangely before an
Earthquake