Christchurch earthquake Flashcards
when, where and what was the christchurch earthquake?
on 22nd of february 2011 a 6.3 magnitude earthquake lasting 12 seconds hit new zealands south island (christchurch)
the epicentre was 10km away from at a focus (depth) of 5km
it was an aftershock of a 7.1 magnitude earthquake in 2010 but was much more severe
what plate boundary does new zealand lie on?
a destructive plate boundary on the pacific and indo-australian
what were some primary effects of the earthquake?
christchurch cathedral lost its spire
building damage was widespread beacuse buildings had already been weakened in 2010 earthquake
liquefaction produced 400,000 tonnes of silt
roads and bridges were severley damaged in places
what are some secondary effects of the earthquake?
an economic cost of NZ$ 3.5 billion
181 people were killed
10,000 houses needed to be rebuilt due to landslides and the earthquake
high rise buildings constructed in the last 30 years generally survived
christchurch international airport was closed but was completely unaffected
what are some short term responses to the christchurch earthquake?
an emergency response plan was in place within two hours of the earthquake happening
the new zealand defence force provided equipment, transport, evacuation, food and water aid to 1000 homeless people
electricity companies worked around the clock to restore electricity to areas that were cut off
search teams were sent from UK,USA, Japan, Taiwan, China and Singapore
what are the long term responses to the Christchurch earthquake?
electricity was restored to 80% of housholds within 5 days and 95% within 2 weeks
communication companies worked to restore telephone lines
water supplies were restored to 70% of households withina week
what is new zealands GNI?
NZ$ 41070
