Case study-Christchurch, New Zealand-2011-Earthquake Flashcards
Earthquake
When was it?
22nd February 2011
What was the magnitude?
6.3
What was the plate boundary?
Convergent with some near by transform features
Pacific plate and Australian plate
What caused the earthquake?
Movement along the Christchurch fault line from a result of stress in the region
What were some of the primary impacts?
Severe damage to buildings, roads and bridges meaning the central business district was heavily affected
Intense shaking caused immediate structural failures
What were some of the secondary impacts?
Over 10,000 after shocks
Triggered landslides
What were some of the social impacts?
2,000 reported injuries
185 people dead
What were some of the economic impacts?
~NZ$40 billion
Significate disruption to businesses causing them to relocate
What were some of the environmental impacts?
Changes in elevation and ground stability-liquefaction
Impact on local ecosystems
What were some of the political impacts?
Government implemented emergency response and recovery plans
Is Christchurch considered a vulnerable and risky location?
Yes, Christchurch is vulnerable due to its location near active fault lines and history of seismic activity
What are the risk factors associated with earthquakes in Christchurch?
Proximity to major fault lines
High population density in urban areas
Aging infrastructure susceptible to damage
Limited preparedness in some sectors
