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Originally posted by pantangele
reply to post by czacza
This is good information. I think we need a lot more in this thread about dreams. Dreams and oh, what you made for dinner. Anyone who goes to the bathroom should post that, too, especially if it's explosive.
This is good information. I think we need a lot more in this thread about dreams. ... I do feel the need to admit that I had a dream in 1991 that I f'ed Cindy Crawford and I don't think there was ever any need to warn her.
" Here are some important facts about the quake swarm and ensuing scientific lethargy that didn’t make it into the article and haven’t been released by the USGS. The first concerning issue that should be recognized is that these YVO experts are relying on the statistical frequency of catastrophic events rather than geologic analyses to down play the likelihood of eruption. We pay them to do geologic analyses not spout statistical pabulum. When I questioned the head volcanologist at USGS headquarters about the ability to discern the precursors to a super eruption he indicated that the most analogous monitored eruption was one in Chile that only took 3 weeks to evolve from the first tremors to eruption. YVO, on the other hand, thinks it’s sufficiently timely to wait months for a thorough analysis of the swarm using their old computers to produce questionable results using limited and inexact data. When I asked Jake Lowenstern to employ better and more sensors and collect multiple types of data sets to obtain a credible work product he said “I certainly agree that sophisticated imaging techniques could potentially help define the system much better”. The head volcanologist gave a number of budgetary excuses as to why USGS doesn’t want to deploy better sensors or use better computers but admitted that a repeat of the last super eruption could only be compared in effect to another Chicxulub impact. The YVO already has a boat
Now, let’s get down to the science of the quake swarm. The North end of Yellowstone Lake is the hottest region and releases more heat than any other area in YNP because the magma chamber below is at its shallowest point. Virtually all of the 900 quakes occurred in a 2 mile radius column from very near the surface down to the magma chamber at 5 miles deep. The bottom of the Lake above the swarm is covered with multiple lava flows from prior eruptions, but the bottom layer is from the super eruption 640,000 years ago. The YVO lead seismologist told the JH News & Guide “One idea is that the earthquakes happened in a “pre-existing zone of weakness.”” I questioned a doctoral student working with Dr. Smith and he revealed that the quakes exhibited a “double coupled signature” and explained that this only occurs when rock slides on rock in the absence of fluids, so the quakes weren’t caused by hydrothermal activity. My reasoning is therefore as follows, the relatively narrow column of quakes extending across all strata above the magma chamber could only be caused by a focused pressure source acting on a “pre-existing zone of weakness” that I presume is a volcanic chimney from the last super eruption. This chimney is a “cork” on the magma chamber, which may not “pop” for millennia but, has definitely been fractured extensively and effectively “loosened”. Nobody knows whether it will blow explosively or just ooze lava because that depends on how fast the lava comes out and whether the gas pressure in the magma and chamber has time to equalize slowly or decompresses all at once.
Originally posted by startx.jeff
This is good information. I think we need a lot more in this thread about dreams. ... I do feel the need to admit that I had a dream in 1991 that I f'ed Cindy Crawford and I don't think there was ever any need to warn her.
Wierd. You had that dream about Cindy Crawford too? Man, that girl got around. Except in my dream, she f'ed me ..... I almost didn't wake up.
ahem. In other news, it appears that the USGS is back on weekend staffing. The microquake from around midnight last night hasn't made it to the list yet this morning.
I wonder if we'll experience what we did last weekend, when they started showing up after lunch. Hmmm.... maybe the guy on duty is dreaming about Cindy Crawford now. eh?
Jake Lowenstern, the Menlo Park, Calif.-based scientist in charge of the Yellowstone Volcano Observatory, said theories about the quakes -- such as Lakosh's idea that they're centered on a vent -- aren't impossible, but the evidence is lacking. "I could come up with 100 different theories without any evidence for them and they would all be equally likely," Lowenstern said. "Unless you have some reason to say that's what's going on, then you're not going to get a whole lot of people convinced by your speculation."
We don't have the budget to add more sensors
Originally posted by Shirakawa
Hi guys, I was wondering if this sequence of (very small) seismic waves on YPC station could mean something:
small-big, small-big, small-big, in a fast crescendo series (2 minutes in total)
On a very rough calculation, the strongest one shouldn't have had a magnitude greater than -0.8 (150 nanometers amplitude on GEE), so we're talking about microquakes, but they're still signs of some activity that is hard to see on webicorders.
Note that as I am writing other very little "small-big" earthquakes seem to be occurring on YPC (on other stations too, but this is where they're easier to see). The strongest one having a 250 nanometers amplitude for now (very approximately equivalent to -0.6 magnitude).
I wonder if in USGS/UUSS calculations of the number of earthquakes occurring every year on Yellowstone, negative magnitude ones are accounted for.
[edit on 2009/1/10 by Shirakawa]
I questioned a doctoral student working with Dr. Smith and he revealed that the quakes exhibited a “double coupled signature”
this only occurs when rock slides on rock in the absence of fluids, so the quakes weren’t caused by hydrothermal activity
Originally posted by MischeviousElf
OK just to add just contacted someone who knows about this more than anyone else posting on this thread that I know about to confirm or debunk Lakashs claims
that in fact we are seeing not hydrothermal activity but magama movement causing the rock to move be deformed at such low depths...
Really worrying if he is right IMHO.
Elf.
Originally posted by LAUTERMILCH
I did not see this mentioned in this thread.
Chris Saunders is is in a bit of trouble.
Story
Originally posted by pantangele
Can anyone map this data (the discharge levels at Yellowstone Lake) against both precipitation levels and temperature?