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Transcript of Earthquakes!
The result of a sudden release of energy in the Earth’s crust
usually recorded with seismometers
instruments that measure the vibrations of the ground
happen because of tectonic plates
sudden tremor or movement of the earth's crust
can linked to explosive volcanic eruptions
Where do earthquakes happen?
Happen all the time all over the world, along plate edges and faults
Most occur along the edges of oceanic and continental plates
Usually caused because of all the bumping and sliding that the plates do
What is the Richter Scale?
Standard scale that is used to measure earthquakes
The Richter Scale measures on a factor of 10.
What are the effects of earthquakes?
Shifting masses send out shock waves that are usually powerful enough to change the surface of the earth
Cliffs may be moved upwards
Cracks in the earth’s surface may be opened
Can cause great damage including the destruction of buildings, houses and power/gas lines. Other effects include landslides, snow avalanches, tsunamis and volcanic eruptions.
What is one famous earthquake?
January 12, 2010
Magnitute of 7.0m
Happened just 25 km west of Port-au-Prince, Haiti’s capital
Haitian Government stated that an estimated 230,000 people had died and 300,000 people were injured
Left many people homeless
Dead people filled the streets as people could not find place to put them
After the earthquake, a tsunami was reported to hit, but it was quickly cancelled
Nearly two weeks later, it was reported that the beach of the small fishing town of Petit Paradis was it by a tsunami shortly after the earthquake, which researchers confirmed that is was a result of an underwater slide.
What were the effects of the Haiti earthquake?
Buildings destroyed, homes lost, and jailers escaping from prison when the walls collapsed which lead to looting and robbing
Buildings that were destroyed made it difficult to get aid to the people who needed help
Without clean water
A lot of dead bodies filled the streets
Created a big smelly odour
Doctors had to perform surgeries outside
Affected the economy because of the many attempts to rebuild homes without the money
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by: sammi, Akash, and Kamran