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Earthquakes and Volcanoes

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Earthquakes and Volcanoes By: Brianna Shields February 8, 2005 GOAL To explain the theory of plate tectonics and to relate it to areas of volcanic and earthquake ... – PowerPoint PPT presentation

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Title: Earthquakes and Volcanoes


1
Earthquakes and Volcanoes
  • By
  • Brianna Shields
  • February 8, 2005

2
GOAL
  • To explain the theory of plate tectonics and to
    relate it to areas of volcanic and earthquake
    activity

3
Assessment
  • Use your notes to help you label the picture of
    the lithospheric plates at the plate boundaries
  • The teacher will go over the answers with you in
    approximately 5 minutes

4
Earthquakes
  • How are earthquakes caused?
  • Rocks rubbing at fault lines
  • Transform/strike slip boundaries
  • Plates that are shearing or faulting
  • Occur on land or in oceans

5
Earthquakes
  • What do earthquakes cause?
  • 1. Destruction of landforms
  • Destroying cities, mountains, plateaus, etc.
  • 2. Landslides
  • Vibrations of a mountain can cause massive
    movements of rocks down slopes
  • 3. Tsunamis
  • Earthquakes at oceanic plate boundaries can
    create giant waves

6
Earthquakes
  • Parts of an earthquake
  • 1. Focus
  • Point beneath earths surface where rocks break
    and move

7
Earthquakes
  • Parts of an earthquake
  • 2. Epicenter
  • Point directly above focus, on earth surface,
    where most violent shaking occurs

8
Earthquakes
  • Earthquake Vocab
  • 1. Richter Scale- ranks the intensity of an
    earthquake

9
Earthquakes
  • Earthquake Vocab
  • 2. Seismograph- measures the intensity of an
    earthquake

10
Earthquake Damage
11
Landslides caused by Earthquakes
12
Tsunamis
13
Tsunamis- Recent One near Indonesia
14
Tsunamis
15
Tsunamis
16
Tsunamis
17
Tsunamis
18
Tsunamis
19
Tsunamis
20
Tsunamis
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