Earthquakes Hayley Cross and Emily Janis Mrs. Smith 5th hour April 8, 2011
Earthquake Background Information
- Earthquakes are the shaking that results from the movement of rock beneath Earth’s surface.
- How are earthquakes measured?
- Earthquakes are measured by seismographs.
- What does magnitude mean?
- The measurement of Earthquakes strength based on seismic waves and movement along faults.
- How is magnitude measured?
- Magnitude is measured on the Moment Magnitude Scale.
Damage Caused by Earthquakes
- What are earthquake waves called?
- What two types of seismic waves are there?
- Body Waves and Surface Waves
- What two types of body waves are there?
- They compress and expand like and accordion
- They vibrate up and down as well as side to side.
- A Mechanism used by geologists to explain Earthquakes and surface ruptures, seen when a deep fault’s movement breaks through to the Earth’s surface.
- They occur at all types of plate boundaries.
The Tohoku Earthquake
- March 11, 2011 at 9:10 am eastern time
- The magnitude of this quake was
Effects on the environment/earth Replace these words with an appropriate image. Replace these words with an appropriate image. Replace these words with an appropriate image.
Effects on the People of Japan
- Damage of nuclear power plants
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- Losses of Hundreds of thousands of lives
Effects on the Economy of Japan
- Production is expected to decrease
- High costs of rebuilding.
- Disruption of power and water
- One interesting fact about this earthquake is that it moved several GPS sensors. This will require All of the GPS sensors to be reset
- How does elastic rebound explain this movement?
- It can detect an objects ability to return to its original shape.
- A long high sea wave caused by an earthquake or other disturbances.
- How do tsunami waves appear at sea?
- How high can tsunami waves be?
- How fast can tsunami waves move?