EARTHQUAKES

WHEN YOU THINK OF EARHTQUAKES, WHAT COMES TO MIND?

• I think of the ground shaking and houses collapsing.
• I also think of worried people screaming.
• I think of the road beings cracked and tress falling over.

WHAT IS AN EARTHQUAKE?

• Violent shaking in the ground
• Sometimes causes destruction
• In result to the earth's plates moving

WHERE DO EARTHQUAKES OCCUR?

• Along the edges of plates
• Where transform boundaries move
• Plate boundaries

WHY DO EARTHQUAKES OCCUR?

• At transform boundaries
• When plates slide past each other
• They form either a fault or an earthquake

WHAT IS DEVASTATION LIKE?

• People running to find a place for shelter
• Houses collapsing around you
• Trees falling and making even more noise then there is already
• Cars crashing to come to a stop

HOW OFTEN DO THEY OCCUR?

• Magnitude 2 and smaller- several hundred per year
• Magnitude greater than 7- once per month
• Magnitude 8 and higher- once a year

WHAT WAS THE LARGEST RECORDED EARTHQUAKE?

• " The Great Chilean Earthquake"
• Magnitude of 9.5
• May 22, 1960
• Near Valdivia, Chile

WHAT PRECAUTIONS ARE TAKEN TO PROTECT PEOPLE FROM EARTHQUAKES?

• Hide under a table or desk and hold your legs and cover your face
• Pick a place where things won't fall on you and away from windows
• Stay inside
• Don't move until shaking stops
• Watch for things that have fallen that could hurt you

HOW ARE EARTHQUAKES MEASURED AND MONITORED?

• Creepmeeters
• Magnetometers
• Pore Pressure Monitors
• Strainmeters
• Tiltmeters

HOW DO EARTHQUAKES AFFECT THE ECONOMY?

• Can affect the economy by a lot
• Stores, hospitals, homes, and businesses destroyed
• Stores and businesses can't open to sell their products
• The cost of rebuilding can alter the economic flow