posted on Dec, 3 2008 @ 05:33 PM
Wow... A lot to catch up on since I was last on here about 15 hours ago. (Long day today.) It's well after midnight now so I won't say much now,
except to thank everyone who's dug up some fascinating info -- where volcanoes are and so forth.
I hadn't heard that USGS don't post details of volcano (magma) related quakes. I can't see the sense in them going that way anyway, seeing as some
of the biggest quakes in history and pre-history have been linked to volcanic activity. Krakatoa (1883) comes to mind... When it blew it was heard
over about 1/4 of the globe, if I recall. (Was heard 1,000 miles away like "the roar of heavy guns"! [Whew!]) And it triggered a lot of quake
activity. So did Thera, which wiped out the Minoans when it blew up. And of course there was the last time Yellowstone let rip... (Fortunately quite a
In short, not reporting quakes that stem from volcanic activity could be doing us all a dis-service, to put it mildly. But with the way USGS operates,
who knows how they make such decisions? If we could get the wave-form data for those offshore NW US quakes, we could submit them to expert analysis to
determine if they were magma-effect events or "normal" seismic. But as the USGS will not release wave-form data for quakes in that region, we're
working in the dark. It's a pity because they have excellent resources and could help many people a great deal more than they do (and hey, they do
give a lot of data, after all -- it's just patchy at times), so let's hope things might improve there in the near future.
Anyway, must go get some shut-eye. I'll try to drop in again in about 8 hours and post a quake map for Nth America to keep things up to date. If I
can't, would someone at least take a copy and either post it or hold it in a safe file?
Also we now need to do on-going comparisons between what the Canada experts report and what USGS offers...
[edit on 3/12/08 by JustMike]