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View Full Version : wow just had an earth tremor ..here in north wales



aboard_epsilon
02-26-2008, 08:07 PM
0:58 am

whole house shook for about 10 seconds

its a first for me .

all the best.markj

Evan
02-26-2008, 08:39 PM
Sure enough.

http://vts.bc.ca/pics3/ukquake.jpg

aboard_epsilon
02-26-2008, 08:45 PM
i just corrected my comp clock and it was 1 min out .......so actually happend 0:57

so took 1 min plus or minus to travel from john stevenson ......thats his area on the map !!!!

all the best.mark

Evan
02-26-2008, 08:46 PM
The surface wave travels at 8 miles per second.

sconisbee
02-26-2008, 08:52 PM
heh i just heard about that from a friend that i was txt'ing earlier, shes in manchester the darned thing woke her up.

any damage mark?

aboard_epsilon
02-26-2008, 08:59 PM
will have a look tomorrow

129 miles/ 8 = 16.1 secs difference between me and john.

so must have actually happened at ........

00:57:01 here

thats road miles ...so ......

all the best..mark

Evan
02-26-2008, 09:03 PM
A 4.7 quake at 10 km deep isn't likely to cause damage. That's a pretty deep quake so by the time the wave reaches the surface it has spread out a lot.

JRouche
02-26-2008, 09:14 PM
Whats interesting for me is not the magnitude but the possible rarity.. Are they very rare in that area? We have them often being on the pacific rim so I expect them.

What would be odd if an area that has been seismically stable for a very long time all of a sudden becoming active. Good Ol mother earth. Shiftin and movin. Glad you didnt have any damage. JRouche

boslab
02-26-2008, 09:57 PM
think they seem to be getting more frequent, several over last couple of years seem to have been reported on tv, odd
mark

Bob Ford
02-27-2008, 12:24 AM
California and Nevada latest earth quakes.
http://quake.wr.usgs.gov/recenteqs/latestfault.htm

Bob

Bguns
02-27-2008, 01:56 AM
http://earthquake.usgs.gov/eqcenter/recenteqsus/Maps/special/Alaska.php

We have no stone construction up here... Unlike across the pond.

Evan
02-27-2008, 02:04 AM
And this is why it's called the ring of fire. These are the quakes on the Pacific Rim in the last seven days with the majority associated with volcanoes.

http://vts.bc.ca/pics3/quakes.jpg

malbenbut
02-27-2008, 02:50 AM
(wow just had an earth tremor ..here in north wales)
If it did travel this far north its effects would have been overlooked due to the 80 mph winds we had all day yesterday and last night.
MBB

John Stevenson
02-27-2008, 03:31 AM
5.3 according to the BBC news.
Did me a favour actually, whole house shook and Gert flew out of bed to see what it was so I had chance to nick all the covers back.

I don't think it's just the size but also how it hits, we had one in 2002 in Birmingham rated at a 5.0 and this lasted a lot longer and cracked a couple of walls in places, nothing serious.

Although the three at the start of 2000 are all close to us we only felt the Dudley one.


PREVIOUS QUAKES IN THE UK
April 2007 - Folkestone, Kent (magnitude 4.3)
December 2006 - Dumfries and Galloway (3.5)
September 2002 - Dudley, West Midlands (5.0)
October 2001 - Melton Mowbray (4.1)
September 2000 - Warwick (4.2)
April 1990 - Bishop's Castle, Shropshire (5.1)
July 1984 - Nefyn, north Wales (5.4)
June 1931 - in North Sea near Great Yarmouth (6.1)

.

Allan Waterfall
02-27-2008, 03:41 AM
Probably just Northern Rock settling :D

I think it's centre was in Gainsborough from what our Gert said after watching the news.

Allan

Norman Atkinson
02-27-2008, 03:42 AM
Malcolm,
We got a 84mph gust at Newcastle airport which is just a mile or two away from me.

No great shakes?

Norm

John Stevenson
02-27-2008, 03:55 AM
Hope that tight Scots bastard wasn't wearing his kilt yesterday?

Alastair come in please ..................:D

.

old-biker-uk
02-27-2008, 03:59 AM
The earth moved for me once but that was a long time ago
Mark

John Stevenson
02-27-2008, 04:03 AM
The earth moved for me once but that was a long time ago
Mark

Was you on top or bottom ?

If you were on top then she probably farted.
.

Norman Atkinson
02-27-2008, 04:30 AM
All that happened was one guy who broke his hip in Market Rasen.
There was a few bricks out of chimneys.
We had two bridges blocked by overturned high sided lorries and the Great North Road blocked.

Up North, in Aviemoron country, there is snow and gales. The gales are petering out and more storms before the week end. Outside my other place we get winds toting 124mph.

So we've discovered that there are earthquakes.What next?
Stroll on!

Norm

Timleech
02-27-2008, 04:36 AM
5.3 according to the BBC news.
Did me a favour actually, whole house shook and Gert flew out of bed to see what it was so I had chance to nick all the covers back.

I don't think it's just the size but also how it hits, we had one in 2002 in Birmingham rated at a 5.0 and this lasted a lot longer and cracked a couple of walls in places, nothing serious.

Although the three at the start of 2000 are all close to us we only felt the Dudley one.


PREVIOUS QUAKES IN THE UK
April 2007 - Folkestone, Kent (magnitude 4.3)
December 2006 - Dumfries and Galloway (3.5)
September 2002 - Dudley, West Midlands (5.0)
October 2001 - Melton Mowbray (4.1)
September 2000 - Warwick (4.2)
April 1990 - Bishop's Castle, Shropshire (5.1)
July 1984 - Nefyn, north Wales (5.4)
June 1931 - in North Sea near Great Yarmouth (6.1)

.




We're used to the house shaking, as we're only yards from the main 'West Coast' railway line, until recently there was a regular heavy train at about 2am which shook the old house quite vigorously. This was a bit different, though, maybe a lower frequency (and no train noise!). I was half awake, Er Indoors was downstairs getting the books up to date for the VAT return.
I remember the 1984 N Wales event, that was a bit more alarming. The one distinct feature I remember is watching the incoming 240V overhead power lines (two separate, not very well insulated, wires at that time) dancing up & down and coming close to touching one another.
The only other tremor I distinctly remember was from my childhood, maybe about 1960, when we lived near Rugby. I was walking down the village street when the ground started shaking under my feet.

Tim

Evan
02-27-2008, 08:30 AM
In California, where I grew up, such an earthquake doesn't even make the news. I recall one quake about 1960 or so that exceeded 7 on the scale. Each number on the logarithmic Richter Scale represents an increase in energy of 31 times more than the previous integer. A 7 quake is very powerful. I recall noticing the chandelier beginning to sway which was alarming because it weighed a great deal. I ran outside onto the patio and the real fun began as large waves rolled by underfoot. You could easily tell the direction the waves came from and they felt like you were standing in a skiff with a sea rolling past underneath. That continued for at least a full minute.


I don't think it's just the size but also how it hits,
Just so. The main factor of damage is the duration rather than the intensity. A sudden strong jolt is much less likely to cause damage than a long drawn out lesser seeming quake. The longer the shaking lasts the more time there is to excite resonances in structures causing failure.

Incidentally, the west coast of Canada is overdue for a truly major quake. There is clear evidence that they have happened in the past on an approximate 300 year cycle. Some of the evidence includes layers of sediment in river beds that have been turned upside down on a wholesale basis. This is of particular interest because some parts of the built up greater Vancouver area lie below sea level with only dikes for protection against the sea.

Alistair Hosie
02-27-2008, 11:05 AM
we were fine in Scotland:D Alistair

Oldbrock
02-27-2008, 12:29 PM
(we were fine in Scotland Alista) Lots o brass in the sporran then.

quasi
02-27-2008, 02:40 PM
the end is near.

John Stevenson
02-27-2008, 03:37 PM
Which end, headstock or tailstock ?





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