posted on May, 6 2013 @ 10:51 PM
Originally posted by PuterMan
Tree root rock shows as small sharp normally single line (up and down) spikes on the seismos.
I'd be much more curious what it looks like on a spectrogram. Got a pic for me on that? Cause I'm having a hard time seeing what I've seen on MCID as
tree root noise.
Funny, one of the "criteria" for pre-eruptive concerns that scientists have for Yellowstone is multiple swarms of microquakes. It's listed right on
USGS's own site. Don't have the link handy, but I know this because you guys may remember that through writing to certain contacts, I helped light a
fire under their butts to start tracking swarms at Yellowstone for this very reason. And so they started reporting on this in the updates, which I
Multiple swarms of microquakes. In different locations. There's at least five I see there.
I commented to them before about the apparent "change" in seismicity, with wide dispersion of activity over different parts of the park, and received
no reply on that issue directly.
Not sure anyone knows what to think about it. Even in 2008-2009 with all that activity they didn't raise the alert level that I recall. I could be
wrong on that, not sure. But what is "elevated seismicity beyond background levels" considered to be anymore at Yellowstone, such that it would cause
them to raise the alert level? I mean seismicity is so high there already, that if in 2008 they didn't raise it, or even in the period of caldera
uplift from 2000-2010, then it seems it would take some seriously big quakes and multi swarms of very high intensity at this point to raise it.
Of course. There are millions of dollars in tourism at stake here.
But yeah, I must express some concern at this apparent change in seismic character. It is apparent to me, anyway, from my many years of watching it.
And I would venture that swarms over the last year have been increasing from previous years. I have a thread around here somewhere where I was
tracking YS swarms by the month, but lost interest. And I think they want to see at least 15 events close together at this point for it to be
considered a swarm, so what I am seeing as five, they may only regard as one- or none. But there is no denying that there are at least "pockets of
multi activity." The fact that they are occurring all over the park, and not just confined to one area, is what is troubling me.
edit on Mon
May 6th 2013 by TrueAmerican because: (no reason given)