Earthquakes

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Earthquakes

• What do YOU know about earthquakes?

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What causes earthquakes?

• Stress along tectonic plates

pulling
pushing
sliding
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Where do earthquakes occur?

• Along the fault lines

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Seismic Waves
There are 3 types of seismic waves s waves, p
waves, and surface wave. S waves up and down,
side-to-side motion P waves compresses and
stretches like a Slinky Surface waves
circular motion (most destructive) Click on the
images below to view animations of these
different seismic waves.
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Stressed Fault Lines
The image below depicted the levels of intensity
along the fault lines.
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Northridge Earthquake January 16, 2004
Below shows the intensity of the Northridge
earthquake.
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Gas Line Catches Fire
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Basic Necessities Are Scarce
EL CAMINO REAL HIGH SCHOOL, WOODLAND HILLS, CA
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Major Damage to Buildings
KAISER PERMANENTE HOSPITAL PANORAMA CITY, CA
APARTMENT COLLAPSES NORTHRIDGE, CA
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Buildings Bend
CAL STATE UNIVERSITY NORTHRIDGE NORTHRDIGE, CA
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Freeways Collapse
HIGHWAY 14 COLLAPSES, SANTA CLARITA, CA
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HIGHWAY 14 COLLAPSES, SANTA CLARITA, CA
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HIGHWAY 14/INTERSTATE 5 INTERCHANGE
COLLAPSES SANTA CLARITA, CA CAUSES DEATH OF
POLICE OFFICER
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PILLARS BUCKLE ON 118 FREEWAY, NORTHRIDGE, CA
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  additional information including great
  animations.