2024 exams

•  On 12 January 2010, a magnitude 7 earthquake hit Haiti at 16:53 local time
• Haiti:

  • 3 million people affected.
• Haiti: 300,000 injured.
• Haiti:

  • 30,000 commercial buildings collapsed.
• Haiti:

  • Businesses destroyed.
• Haiti:

  • Neighbouring Dominican Republic provided emergency water and medical supplies 
• Haiti:

  • Emergency rescue teams arrived from a number of countries, eg Iceland.
• Haiti:

  • After one year, there were still 1,300 camps.
• Haiti:

  • Schools are being rebuilt.
•  Haiti lies right on the boundary of the Caribbean and North American plates. There was slippage along a conservative plate boundary that runs through Haiti.
• An earthquake is the shaking and vibration of the Earth’s crust  caused by sudden movement of the Earth’s plates.
• tectonic plate movement: step 1 - hot rock rises, heated by the earths core
• tectonic plate movement: step 2 - cool rock sinks back down
• tectonic plate movement: step 3 - at the surface, hot rock spreads sideways
• tectonic plate movement: step 4 - the oceanic plate descends into the mantle
• tectonic plate movement: step 5 - when the rock melts, carbon dioxide is released
• tectonic plate movement: step 6 - hot magma rises from the mid - ocean ridges, pushing the plates apart
• Convergent plate boundary: Where two plates are moving towards each other.

  
• Divergent Plate boundary: A boundary where two plates move away from each other.

  
• Covergent Plate boundary ( continental + continental ) : when two plates move toward eachother and then collides

  
• Conservative Plate boundary: A plate boundary where two plates move past each other at different speeds in the same direction, or in a different direction and at different / same speeds

  
• Both earthquakes and volcanoes are located along different edges of different tectonic plates all over the world.
• An earthquake is measured using a richter scale.