It was 1
a.m. and the fridge had yielded unexpected delights so it was time for a breath
of fresh air on a cold night. Touching
the window to feel how cold I felt a very slight vibration and realised there
was sound out there.
When the
window was open it was apparent that it was one or other of the clubs in town
belting out the low frequency decibels.
What it must have been like for those very close could be imagined and
the effect on the actual buildings.
There have
been many times in the past when the vibrations have not been good. One “digs” I was in for a very short while in
Earls Court
seemed a great deal. When I realised
that it was over the Piccadilly and District Lines the reason for its cheapness
was all too clear.
The lady
who owned the flat was the widow of a man who had fought the Zulu’s, the place
was full of shields and memorabilia and I felt that at times it would have been
quieter to have a Zulu Impi in full cry.
She had lost her hearing as a result of blast in World War II and did not
understand my point of view.
Sound
carries physically and there have been other times when the shaking of earth
has been apparent as well as hearing the cause.
Living on steep hill close to a gas works with a lot of lorried coal
traffic was one and there have been others.
The old trams could really kick up some vibrations under certain
condition.
Then there
was the long period we lived in a mining district. With the loss of almost all the mining
industry has come the forgetting of the scale and severity of much of the
subsidence that resulted from so many years of the getting of coal. We were caught out and our neighbours had
half their house rebuilt.
They were
re-housed for some months but it was not all bad because the then National Coal
Board did a decent job and put right all the faults that the original builders
had left, so they were better off at the end of it. We could not complain, we were fully
redecorated and damage dealt with.
But along
our street it must have cost a good deal of money and after the end of the NCB
and under the new regime of the 1980’s there was a much harder and meaner line
taken with people whose houses had suffered damage. It became much more difficult to have work
done and cost much more to the unlucky householder.
Now we face
a potential energy crisis in the UK as a result of the dilatory and
cowardly failure to work out sensible ways of dealing with the future. It has become clear that all the publicity
stunts and photo opportunity wheezes are not going to provide the energy that either
we currently need or will need in the future.
So now we
need to go fracking for oil one way or another.
This may deliver energy but for those who read the “Oil Drum” site not
necessarily will it be cheap nor will it be free of the effects. One unlucky consequence is the perturbation
it can cause in the earth and rock structures around the workings.
In short
vibrations and movement big enough to be described as “earthquakes” the
location of which will be difficult to predict in terms of incidence and
density. One worry that has escaped
comment to date is that modern building methods for housing are not designed
much for either settlement or instability.
Also, in
some areas where a great many houses in the past have been put up quickly and
on the basis of minimal foundations or under structure there are extensive
vulnerabilities to movement and deformation of the surface.
Long ago
the damage that resulted from economic activity of many kinds including mining
for coal, salt or other things would be called the price of progress. There is still going to be a price for any
progress but who is going to pay?
Don’t
expect any sense from Westminster ,
they are shaking in their boots.
There might be earthquakes caused by fracking, but they will be very small ones. The UK has quite a few very small ones every year. Anything less than 2.0 magnitude quake won't be felt. It would feel more like a truck passing by. Fracking tends to produce 0.5 quakes.
ReplyDeleteHave a look at the British Geological Survey site to see when and where they occur. (Though for some reason they site isn't working too well at the moment, I think they are do some updates or something).
http://earthquakes.bgs.ac.uk/