GeohazardsGeohazards

Which geohazards are related to Which geohazards are related to plate boundaries ?plate boundaries ?

List as many geohazards as you can

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Death Valley – Big Fault Zone (earthquake zone)

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Impact Craters – Evidence that we have been bombarded from space !

http://geology.com/meteor-impact-craters.shtml

Arizona, USA

20,000-50,000

years old

1908 Siberian

Impact Site

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Explosive Volcanic Eruptions

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Effusive Volcanic Eruptions

Under water

On land

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

India Smashing into Tibet to Create the Himalayas

Darjeeling

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Tsunami – Caused by Earthquakes or Landslides

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Landslides – Gravity, Earthquake, Monsoon and Volcanic Activity

Triggers

Colorado USA

Bangladesh

GeohazardsGeohazards

Which geohazards are related to Which geohazards are related to plate boundaries ?plate boundaries ?

Hazard Plate Margin(s)What causes the

hazard

Earthquakes

Effusive Volcanic Eruptions

Explosive Volcanic Eruptions

Landslides

Tsunamis

Relate Geohazard to Plate Relate Geohazard to Plate TectonicsTectonics

Which geohazards are related to Which geohazards are related to plate boundaries ?plate boundaries ?

On your table, write in pencil which plate boundary(s) the hazard is

triggered byEarthquake

Explosive Volcanism

Effusive Volcanism

Landslide

Tsunami

‘‘Hot Spots Volcanics’ Hot Spots Volcanics’ Throughout Geological TimeThroughout Geological Time

Hot Spots Not Associated Hot Spots Not Associated With Plate TectonicsWith 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

The Hawaiian IslandsThe Hawaiian Islands

http://www.edumedia-sciences.com/en/a99-hot-spot-volcanism

http://www.classzone.com/books/earth_science/terc/content/investigations/es0810/es0810page03.cfm

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

HAITI

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?

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

Sometimes, animals act strangely Sometimes, animals act strangely before an Earthquakebefore an Earthquake

M O O

M O O

M O O

W O O F

Which geohazards are related to plate Which geohazards are related to plate boundaries ?boundaries ?