After the
Christchurch earthquake, New Zealand seems to have had a knee jerk reaction.
They are now inspecting every building in the country and marking many for
demolition, worried that they may not
withstand a really severe earthquake.
Of course,
when you have been through of few of these earthquakes you know how scary they
are. I find them very frightening. You never know when an earthquake will come
and how long it will last and how big it will be. It is one of the things you
have no control or power over.
Most of the
buildings in New Zealand are built to withstand earthquakes. I worked in a nine floor
building in the CBD and had two 6.3 quakes while I was there. The building is
on huge rubber rollers so swayed with the movement. There was no damage and
nothing fell even though the whole place was doing the cha cha.
The whole of
New Zealand is earthquake prone, although Auckland and north Auckland get few
of them, however in the last couple of weeks Auckland did get a couple of
shakes. The main concern is Wellington.
By all accounts it is overdue for a whopper, either sometime within the next fifty
years or five hundred…who knows? Wellington is a city built on steep hills,
surrounding a harbour, and I don’t know how much chance there is of a tsunami
because of the narrow opening of the harbour, but the steep hills could easily
slip along with many of the houses.
Access also is tricky with most of the main roads out to the outer suburbs along the
foreshore with hills on the other side.
One road from the Kapiti Coast over to Lower Hutt is the Paekakariki Hill Road. Here is a video of a motorbike ride to the top. Notice how high the top of the hill is. You can see the beach below.
There are so
many people who commute into the city from outside the main city basin.
Commuter trains go all the time, and to get through the hills there is a 5 km tunnel,
a place not to be caught during a big quake.
All the
access roads are through the hills and around the northern sea shore around
Plimmerton up to Kapiti Coast. In a decent earthquake it is expected that all
those roads would be impassable.
To get
access in case of an earthquake will cost a fortune. There has been a motor way proposed through
an area called Transmission Gully, but no government seems to want to spend the
money to get it going.
Peter found
this article about a new plan Wellington is putting together in case of a large
earthquake. They are obviously putting things in place.
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