On checking the log today I saw that my VP2 rain gauge had reported a tip at
about the same time as yesterday morning's earthquake. It's only set for 15
minute downloads, so I can't be sure of the exact time (it's reported as
12:45 am which would really be a bit early). The ISS and rain bucket are
together on a steel pole at the 125cm or so recommended height of the
thermometer. There had been no rain the previous day and the 5" copper
gauge was bone dry at 09Z that morning.

Did anyone else get an unexpected tip at that time?

Steve P
Acton Bridge, Cheshire

Have moved over to Instromet's optical rain sensor for about a year now ,
but the original Davis VP has been left running. To be honest, I didn't
think to check - but will do so tomorrow.

However, the vibrations were so great here that the chart on our tilting
syphon rainfall recorder became unclipped. We have a clear trace until just
before 0100 followed by nothing! In previous quakes the vibrations have been
picked up by the thermograph and hygrograph - the springed feet on these
seamed to magnify the vibrations. However, both instruments have been
recently replaced with new ones which recorded no effect at all.

Two of our students appeared on Anglia TV that evening describing the cause
of the quake. I wonder if anyone saw them.


Mike Lewis

Pitsford Hall weather station
at Northamptonshire Grammar School

"Steve Pardoe" wrote in message
...
On checking the log today I saw that my VP2 rain gauge had reported a tip
at
about the same time as yesterday morning's earthquake. It's only set for
15
minute downloads, so I can't be sure of the exact time (it's reported as
12:45 am which would really be a bit early). The ISS and rain bucket are
together on a steel pole at the 125cm or so recommended height of the
thermometer. There had been no rain the previous day and the 5" copper
gauge was bone dry at 09Z that morning.

Did anyone else get an unexpected tip at that time?

Steve P
Acton Bridge, Cheshire

On Thu, 28 Feb 2008 14:11:54 -0000, Steve Pardoe wrote:

On checking the log today I saw that my VP2 rain gauge had reported a tip at
about the same time as yesterday morning's earthquake. It's only set for 15
minute downloads, so I can't be sure of the exact time (it's reported as
12:45 am which would really be a bit early). The ISS and rain bucket are
together on a steel pole at the 125cm or so recommended height of the
thermometer. There had been no rain the previous day and the 5" copper
gauge was bone dry at 09Z that morning.

Did anyone else get an unexpected tip at that time?

Just checked - nothing showing from my VP2.

I'm quite near to Market Rasen but sleep very well. Just remember what I
*thought* was a dream of the room shaking :-)
--
Regards,

Hugh Jampton

On Feb 28, 9:48 pm, Hugh Jampton wrote:
On Thu, 28 Feb 2008 14:11:54 -0000, Steve Pardoe wrote:
On checking the log today I saw that my VP2 rain gauge had reported a tip at
about the same time as yesterday morning's earthquake. It's only set for 15
minute downloads, so I can't be sure of the exact time (it's reported as
12:45 am which would really be a bit early). The ISS and rain bucket are
together on a steel pole at the 125cm or so recommended height of the
thermometer. There had been no rain the previous day and the 5" copper
gauge was bone dry at 09Z that morning.

Did anyone else get an unexpected tip at that time?

Just checked - nothing showing from my VP2.

I'm quite near to Market Rasen but sleep very well. Just remember what I
*thought* was a dream of the room shaking :-)

At the epicentre you don't get some of the waves that are not
cancelled out with the filtering effect of distance.

It's an audio effect identical to that of antinoise. The waves cancel
each other out. This occurs at points between 105 to 140 or so degrees
distant too. The shadow zone.

You can call it a Mohorovicic discontinuity if you want to believe the
accepted explanations. Not that it isn't a Mohorivicic discontinuity.
It's just that when Mr Mohorovicic discovered it, he didn't know what
it wasn't, so they thought it was something else.

Not that dissimilar to Rossby waves in that regard.

Still; never mind, eh?