waves earthquake
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Earthquake Waves
Mr. King
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcano
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcano
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcano
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcano
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcano
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Subduction Zone
Lava fills in, cools and
Continues to fill in the
Seafloor.
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Subduction Zone
Land gets pushed up while
The ocean floor continues to
Be pushed down.
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Subduction Zone
Land gets pushed up while
The ocean floor continues to
Be pushed down.
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Subduction Zone
Ocean plate melts causing some
Of the lava to recirculate and some
To go up through a volcano
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Subduction Zone
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Volcano explodes because
Lava moves through
cracks
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Volcano explodes because
Lava moves through
cracks
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
If land is lifted too high, it
can crack resulting in a
9.0 earthquake
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Subduction Zone
There areMany earthquakes
In a subduction
zone
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1. Explain the Elastic Rebound
Theory
LandOcean
LAVA
volcanoSea Floor Spreading
Subduction Zone
There are 1 dozen or so plates that make up the surface of the
Earth. Each of these plates are floating on the mantle. They
Are bumping and grinding on each other creating earthquakes.
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2. Explain how a seismograph
works.
QuickTime and aGIF decompressor
are needed to see this picture.
Earthquakes generate seismic waves
which can be detected with a
sensitive
instrument called a seismograph.Advances in seismograph
technology have increased
our understanding of both
earthquakes and the Earth itself.
Perhaps the earliest seismograph
was invented in China A.D. 1! by
a m an named Choko.
Can you tell how oneWorks?
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3. Explain paths of Seismic
Waves.1. P waves - creates the big band sound,
fastest wave first to travel and is a
compression wave.2. S waves - are transverse waves with an up
and down motion.
3. L waves - most destructive waves are lastto hit and result in a rolling motion.
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4. How do you locate an
epicenter?You must have three different seismographs at three different
Locations - then you can pinpoint the different times each picked
Up the earthquake wave. You will do this in a lab.
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4. How do you locate an
epicenter?You must have three different seismographs at three different
Locations - then you can pinpoint the different times each picked
Up the earthquake wave. You will do this in a lab.
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4. How do you locate an
epicenter?You must have three different seismographs at three different
Locations - then you can pinpoint the different times each picked
Up the earthquake wave. You will do this in a lab.
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4. How do you locate an
epicenter?You must have three different seismographs at three different
Locations - then you can pinpoint the different times each picked
Up the earthquake wave. You will do this in a lab.
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4. How do you locate an
epicenter?You must have three different seismographs at three different
Locations - then you can pinpoint the different times each picked
Up the earthquake wave. You will do this in a lab.
Surface
focus
epicenter
A B
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4. How do you locate an
epicenter?You must have three different seismographs at three different
Locations - then you can pinpoint the different times each picked
Up the earthquake wave. You will do this in a lab.
Surface
focus
epicenter
A B
Which seismicStation will
Receive the
Wave first?
A or B
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5. Explain the 3 different types
of faults.
Land Plates
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5. Explain the 3 different types
of faults.
Land Plates
Indicates forces on the land
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5. Explain the 3 different types
of faults.
Land Plates
Indicates forces on the land
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5. Explain the 3 different types
of faults.
Land Plates
Indicates forces on the land
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5. Explain the 3 different types
of faults.
Land Plates
Indicates forces on the land
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5. Explain the 3 different types
of faults.
Land Plates
Indicates forces on the land
This is a Strike Slip Fault
or a Transverse Fault
San Andra Fault
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5. Explain the 3 different types
of faults.
Normal Fault
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5. Explain the 3 different types
of faults.
Normal Fault
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5. Explain the 3 different types
of faults.
Normal Fault
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5. Explain the 3 different types
of faults.
Normal Fault
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5. Explain the 3 different types
of faults.
Normal Fault
The force is called tension
Also called
Scarp face
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5. Explain the 3 different types
of faults.
Reverse Fault
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5. Explain the 3 different types
of faults.
Reverse Fault
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5. Explain the 3 different types
of faults.
Reverse FaultThe force pushing is called Compression
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6. Explain Lithosphere and
Athenosphere - Make the World
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6. Explain Lithosphere and
Athenosphere - Make the WorldLithosphere - solid
Layer on the surface
Also called theCrust.
Athenosphere - liquid
Also called the
Mantle
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6. Explain Lithosphere and
Athenosphere - Make the WorldLithosphere - solid
Layer on the surface
Also called theCrust.
Athenosphere - liquid
Also called the
Mantle
Core - solid
Made up of
Solid nickel andiron
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6. Explain Lithosphere and
Athenosphere - Make the WorldLithosphere - solid
Layer on the surface
Also called theCrust.
Athenosphere - liquid
Also called the
Mantle
Core - solid
Made up of
Solid nickel andiron
Plate tectonics is a theory that explains the plates that make up the
Crust are floating and grinding against each other.
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7. How is a tsunami generated?
Underwater earthquakes that jolt the water.As it travels it gains height by the beach.
8. Name some places in the US that have
seen the most quakes - Why do you think
these are high risk zones?
California up to Washington are part of the
ring of fire. This is where San Andreas
Fault is and the Cascade Mountains
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9. List many ways one can prepare for an
earthquake
Have tools handy to turn off gas
Extra water and food
Ready made shelters Extra medication
Have arraigned a place to call