Transcript Slide 1

Earthquakes:
Location and Causes of Earthquakes
Title: Location and Causes of Earthquakes
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Date: 21/07/2015
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Lesson Aims:
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To find out the location of earthquakes around
the world.
To find out what causes earthquakes to occur.
Lesson starter:
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Location of the worlds earthquakes.
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On the next slide you will see a map of the world.
Discuss with each other where you think you get
earthquake activity and where you get no
earthquakes.
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Be ready to come up to the board and mark on
your answers.
Interactive plate tectonic map.
http://www.bbc.co.uk/schools/gcseb
itesize/geography/natural_hazards/t
ectonic_plates_rev2.shtml
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This map shows the plate boundaries of the Earth.
All earthquake and volcanic eruptions happen along
these boundaries.
What causes earthquakes?
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The different sections of plates are constantly
moving due to convection caused by the heat of
the Earth’s core.
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When the plate move they cause earthquakes,
volcanic eruptions and tsunamis.
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When the plates collide massive amounts of
pressure build up. When the strain becomes too
much the pressure is released and this causes
the Earth to shake.
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http://news.bbc.co.uk/1/hi/sci/tech/7533950.stm
Plate movement animations
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http://earthguide.ucsd.edu/eoc/teachers/t_tecto
nics/t_tectonics.html
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http://www.classzone.com/books/earth_science/
terc/content/visualizations/es0804/es0804page0
1.cfm?chapter_no=08
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http://www.learner.org/interactives/dynamiceart
h/plate.html