They Shape Our Landscape As plates move we may feel these movements as earthquakes If there were no plate motions our planet would not look like home There would be no mountains no valleys no plateaus ID: 593126
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Slide1
Physical Results of EarthquakesSlide2
They Shape Our Landscape
As plates move, we may feel these movements as earthquakes
If there were no plate motions, our planet would not look like home
There would be no mountains, no valleys, no plateaus
More than disasters on the human scaleSlide3
Earth Shaking =
Earth Shaping
Earthquakes and other tectonic activities have been occurring for as long as the Earth has existed.
Events range from small cracks in the soil to the raising and lowering of huge chunks of lithosphere
Happens over long periods of timeSlide4
Faults
Where rock is strained beyond limit, it will fracture, and the rock mass on either side will move abruptly.Slide5
Folds
Accumulated stress and strain within rocks of the lithosphere may cause great warps or folds in rock layers.Slide6
Soil Liquefaction
Much of the dollar damage due to earthquakes result from liquefaction
Table group exploration and discussion
Video
of
liquefaction in Japan;
video
Tokyo ParkSlide7
Landslides
Earthquakes trigger many landslides, particularly in the rainy season
Video
of landslides – general
Video
of landslide – Mt. St. Helens (lahar
)
Graphic
showing Japan flooding
Due to earthquake and landslideSlide8
Underwater Earthquakes
Tsunamis
Video
Japan 2011,
raw footage
Video
Indonesia
2004
Deaths due to Earthquakes/Tsunamis Slide9
Read
Read “I survived a tsunami”
Complete the worksheet on one side to order the events
On the back, answer the questions: “
In what ways did Masahiro exhibit courage?” What do
you
think of Masahiro? How do
you
think you would have reacted under the same circumstances
?Slide10
Aftershock:
A smaller earthquake that follows a more powerful earthquake in same area
.
Liquefaction
:
A process by which the shaking of the ground causes loose, wet soil to act like a liquid.
Tsunami
:
A water wave caused by an earthquake, volcanic eruption or landslide.