I saw that program, but I understood that the Yellowstone super volcano erupts
about every 600,000 years and that it last blew its top 640,000 years ago.
Sounds like it's a little overdue. Tick, tick, tick...
Walt
--
"Anything more than 500 yards from
the car just isn't photogenic." --
Edward Weston
-------------- Original message ----------------------
From: Moose <olymoose@xxxxxxxxx>
> Jez wrote;
>
> > Boy, I'm glad I live in a place where I've never heard of Earthquake
> > Wax!
> >
> Earthquakes are nothing. I just watched a Nova program on "Super
> Volcanos". The last time one blew, 75,000 years ago, it spewed about
> 5,600 times as much material into the atmosphere as Mt St. Helens, 230
> times as much as Krakatoa, and may have precipitated an ice age.
>
> They happen much less frequently than earthquakes, fortunately. My
> nearest ones are Long Valley, just SE of Yosemite and Yellowstone
> itself. both are still active, in that the land is slowly rising as the
> magma chambers fill. Nothing likely to happen for at least a few
> thousand years.
>
> Moose
>
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