On 8 September 2010 01:38, jimlux jimlux@earthlink.net wrote:
You could easily have a displacement of a meter or more..
The (M7+) Landers earthquake here in Southern California a few years back
had a lateral displacement of 10 meters or so and vertical displacements of
a meter.
If there's any soil subsidence, that would also account for a lot
The paragraph that says "The most striking feature of this map is the
section of the Alpine fault in the central South Island that has not
ruptured in the last couple of centuries – which suggests there might
be a fair amount of strain belt up waiting to be released." is quite a
worry for us as they predict we are well due for a significant
movement of the Alpine fault and it will be a major event.
Maybe it's time to move :)
Steve
has a nifty picture: the classic aerial shot of a hedgerow/treeline with
obvious displacement (about halfway down the page)
"New Zealand geologists have already identified a 13km fault trace with 3-4
m of right lateral, strike-slip offset, and variable vertical movement of up
to 1 m. "
Also there was this in a page linked from the above:
Deformation
Portable GPS instruments are planned to be deployed on September 6 (Monday)
to re-occupy GPS 40 - 50 sites in the region looking for changes. GNS
scientists will be joined by colleagues from Land Information New Zealand
(LINZ).
A preliminary estimate of the McQueen's Valley (MQZG) co-seismic
displacement is 135 mm at about 300 degrees azimuth. This permanent receiver
is located on Banks Peninsula. This result is consistent with a magnitude
7.1 earthquake on a vertical strike-slip fault at the location where the
geologists have found surface rupture, but it is only one point and it would
be consistent with many other scenarios as well. We can expect displacements
of 200+ mm at a number of the temporary GPS stations we are planning to
visit, and there is one station in particular that may be within a few
kilometres of the surface rupture and thus have a much higher displacement.
It wouldn't surprise me if they adjust the height of MSL but I would
have thought they would have moved it the other way in an attempt to
forestall fears of the effects of Global Warming.
Regards from Quake City,
Steve
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--
Steve Rooke - ZL3TUV & G8KVD
The only reason for time is so that everything doesn't happen at once.
Steve Rooke wrote:
On 8 September 2010 01:23, Stanley Reynolds stanley_reynolds@yahoo.com wrote:
Yes we do need leap-Centimeters for MSL :-D
Pilot to co-pilot: Well the instruments say we should have landed by now...
Steve
You forgot the canonical next couple lines in the transcript:
Copilot: "what was that?"
<sound of impact>