"John" wrote in message
ups.com

It has been previously hypothesized by Fred Pollitz that the 1964
Alaskan earthquake triggered a suite of earthquakes down the west coast
of North America - St Elias, Cape Mendicino?, Loma Prieta, and
Northridge, if I remember right.

So how long before I was pointing this out was the topic moot?

The two very large earthquakes (first the M8+, then the Sumatra Great
quake) at the end of 2004 also struck surprisingly close in time for
earthquakes so far apart.

Some idiots are still talking about "aftershocks". (Must be galling to
have to re-write the book while I am still here to stick my oar in.)

So the idea of a global activation of large earthquakes is less
outlandish than one might suspect, although many of us are probably
going to be dubious unless the statistics are compelling.

So, in which particular void have you had your cranium inserted until
now?

Not that I really need to know. Here is a forecast or earthquake
prediction:

They are about to fork off down another blind alley, where the slings
and arrows of outragious kooks will have them feeding buns to this
particular troll for a long time to come.

I have to admit that visco-elastic coupling between the 1960 Chile and
1964 Alaska earthquakes, for example, sounds very unlikely.

Quite

Evidence for a Global Seismic-Moment Release Sequence
by Charles G. Bufe and David M. Perkins

Abstract Edited by Yours Truly

Temporal clustering of the larger earthquakes
(foreshock-mainshock-aftershock) followed by relative quiescence (stress
shadow) are characteristic of seismic cycles along plate boundaries.

A global seismic-moment release history illustrates similar behavior for
Earth as a whole.

Although the largest earthquakes have occurred on the Pacific rim, an
analysis of moment release on the pposite side of the earth a very
similar pattern.

Monte Carlo simulations confirm that the global temporal clustering of
great shallow earthquakes during 1952–1964 at M e 9.0 is highly
significant (4% random probability) as is the clustering of the events
of M e 8.6 (0.2% random probability) during 1950–1965.

We are still poor and blind and naked and bragging we know it all.
Immediately after the 1950–1965 cluster, significant quiescence at and
above M 8.4 begins and continues until 2001 (0.5% random probability).

In alternative catalogs derived by correcting for possible random errors
in magnitude estimates in the extended Pacheco–Sykes catalog, the
clustering of M e 9 persists at a significant level.

These observations indicate that, for great earthquakes, Earth behaves
as a coherent seismotectonic system. A very-large-scale mechanism for
global earthquake triggering and/or stress transfer is implied.

There are several candidates, but so far only plastic porridge has been
modeled on a global scale.



http://www3.seismosoc.org/FMPro?-db=...d=40481&-find=

************************************************** *********************

This is soooooo good it deserves its own thread. Lucky for some this is
all I have eh?

In the meantime just to get the testicles rolling, the "clustering of
the events... during 1950–1965" almost coincides with a period of cold
winters in the meteorological centre of the world/one time excellence.

Sorry about making a meal of this.

(I'm not sorry for telling fibs though.)


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