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Geography Revision - Coggle Diagram

- - - - Destructive Boundaries
        
        A destructive plate boundary is where a oceanic plate is forced under the less dense continental plate. Friction causes the melting of the oceanic plate as it enters the hotter mantle. This is sometimes when earthquakes occur.
      - Constructive Boundaries
        
        Constructive plate boundaries pull apart and magma rises up to fill the gap between the plates this can cause mid ocean ridges. Also volcanoes and earthquakes occur at plate boundaries.
      - Conservative Boundaries
        
        Conservative boundaries are plates that go alongside each other and build up pressure until they slip and cause an earthquake.
    - - Effects
        
        Primary
        
        181 people died
        
        2000 people were injured
        
        Over 50 percent of the city's buildings were damaged.
        
        The city's cathedral spire collapsed.
        
        Water and sewage pipes were damaged.
        
        Secondary
        
        Businesses were closed for a long time.
        
        Christchurch couldn't hold the five Rugby World Cup matches.
        
        Schools were closed for two weeks due to the damage.
      - Responses
        
        Short term
        
        International aid was provided (around $6-7 million)
        
        Aid workers from charity such as the Red Cross came to help.
        
        Areas were zoned to assess damage.
        
        Long term
        
        Rebuild of infrastructure
        
        Evacuation Plans
        
        Earthquake drills
        
        Improved emergency services
        
        Earthquake proof housing