Earthquakes

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Earthquakes

• By Alexandria J.

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Section 1 What, where, how and why
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What are Earthquakes?

• The short answer is that earthquakes are caused
  by faulting, a sudden lateral or vertical
  movement of rock along a rupture (break) surface.
      Here's the longer answer The surface of the
  Earth is in continuous slow motion. This is plate
  tectonics--the motion of immense rigid plates at
  the surface of the Earth in response to flow of
  rock within the Earth. The plates cover the
  entire surface of the globe. Since they are all
  moving they rub against each other in some places
  (like the San Andreas Fault in California), sink
  beneath each other in others (like the Peru-Chile
  Trench along the western border of South
  America), or spread apart from each other (like
  the Mid-Atlantic Ridge). At such places the
  motion isn't smooth--the plates are stuck
  together at the edges but the rest of each plate
  is continuing to move, so the rocks along the
  edges are distorted (what we call "strain"). As
  the motion continues, the strain builds up to the
  point where the rock cannot withstand any more
  bending. With a lurch, the rock breaks and the
  two sides move. An earthquake is the shaking that
  radiates out from the breaking rock.

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Where do earthquakes occur and why?

• Earthquakes occur in California, Florida, Alaska
  and The Pacific ring of fire because thats where
  plates meet.

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Is Indiana high risked?

• No not really just the southern part

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Section 2 Effecting peoples lives
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Earthquakes affect many people's lives

• People can become homeless and poor

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Section3 emergency Plan

• Conduct "Duck, Cover and Hold" drills twice a
  year (April and October) to help train people to
  stay calm and react instinctively.
• If all phones are down, be aware that pay phones
  may still work (they are on a higher operational
  priority).
• In a medical emergency during a severe
  earthquake, be aware that most ambulances will
  not be available to the general public.
• Lower all heavy objects located up high and
  fasten tall furniture, such as bookshelves, to
  the walls (anchored to studs).
• When an earthquake hits, take cover, DUCK under a
  sturdy desk, table, pew or other furniture. If
  that is not possible, seek COVER against an
  interior wall and protect your head and neck with
  your arms. Avoid danger spots near windows,
  hanging objects, mirrors or tall unsecured
  furniture. If you take cover under a sturdy piece
  of furniture, HOLD on to it and be prepared to
  move with it. Hold until the ground stops shaking
  and it is safe to evacuate.
• After a severe earthquake, evacuate the building,
  taking extra precautions to watch for falling
  glass and building materials from high exterior
  walls. Move away from the building to an open
  area. Stay off the street to avoid emergency
  vehicles. Do not reenter the building until it
  has been inspected by a competent individual
  (maintenance personnel, architect,

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• Immediately after evacuating, take a roll of all
  known persons who were inside the building, check
  for any injuries and treat accordingly. Survey
  the area around you and do not touch any downed
  electrical lines. Do not smoke or light any
  fires there could be gas leaks.
• Listen for news and instructions from church
  officials, emergency workers, and local radio
  stations___________________________________.
• Do not shut off the gas main unless you suspect a
  gas leak. Become familiar with the locations of
  the Electrical, Gas and Water Main shut offs.
  Know where the proper tools to operate the mains
  are located. Know where emergency supplies are
  located

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• to an open area. Stay off the street to avoid
  emergency vehicles. Do not reenter the building
  until it has been inspected by a competent
  individual (maintenance personnel, architect,
  fire department, etc.).
• Immediately after evacuating, take a roll of all
  known persons who were inside the building, check
  for any injuries and treat accordingly. Survey
  the area around you and do not touch any downed
  electrical lines. Do not smoke or light any
  fires there could be gas leaks.
• Listen for news and instructions from church
  officials, emergency workers, and local radio
  stations___________________________________.
• Do not shut off the gas main unless you suspect a
  gas leak. Become familiar with the locations of
  the Electrical, Gas and Water Main shut offs.
  Know where the proper tools to operate the mains
  are located. Know where emergency supplies are
  located

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The End

• Thanks Mrs.Burt

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