New Zealand Earthquake 0.0 / 5 ? GeographyPollution and health risksA2/A-levelAll boards Created by: nicolarose1Created on: 01-06-17 15:28 Date of earthquake? 2011 1 of 20 Magnitude? 6.3 2 of 20 epicentre? 6 miles from Christchurch 3 of 20 Focus? 3.1 miles 4 of 20 Type of plate margin? conservative 5 of 20 What weakened the buildings previously> Earthuake 6 months earlier 6 of 20 Death toll? 181 7 of 20 Injured? 2000 8 of 20 Percentage of the central city buildings that were severely damaged? 50% 9 of 20 The ground became saturated and lost its strength. What is this called? liquefaction 10 of 20 Percentage of the city without electricity? 80% 11 of 20 Name three secondary impacts. businesses out of action, schools had to share classrooms, liquefaction resulted in damage to roads 12 of 20 How long did the initial quake last for? 10 seconds 13 of 20 Despite this, the damage was severe. Why? because of the location and shallowness of the focus in relation to Christchurch, as well as previous quake damage 14 of 20 Why had most secondary schools in the city closed early (meaning most students were home)? the main secondary school teachers' union had arranged a meeting in the Christchuch area 15 of 20 How much international aid was provided? $6-7 million 16 of 20 How many residents had access to a chemical toilet? 30,000 17 of 20 How long did it take for power companies to restore electricity to 75% of the city? 3 days 18 of 20 How long did it take to reestablish water supplies and water systems? restored by August 19 of 20 How long did it take to clear silt from houses/roads? cleared by August (6 months) 20 of 20
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