Posts Tagged ‘Earthquake’

Tough building codes couldn’t save Christchurch from unknown fault line

Saturday, March 19th, 2011

Image courtesy of NZSEE

One of the things that has come to light about the New Zealand earthquake centred near Christchuch is the existence of a previously unknown faultline. This was only identified last September. According to ABC NEWS Geoscience and Isotope Research Agency seismologist John Ristau views what happened in Christchurch as being different.

“What was a bit unusual was just to have the magnitude-7 earthquake in the first place in that area around New Zealand, because the Canterbury region is not known to be particularly seismically active,”  This is where the discovery of this fault is so important. “It was buried under deposits that were 20,000 years old and it hadn’t been mapped before. So the fault was always there, we just didn’t know it existed.”

Everyone is now waiting to see the reaction of the regulators. At the moment all efforts are focused on rescue and recovery for those who experienced the effects of the quake. Here’s what happened immediately after the quake-