Posted on 09/30/2004 12:02:30 AM PDT by datura
Note to Admin Moderator: I'm posting this in "Breaking News" since no one has said a word about it as of yet. If you don't feel it should stay in Breaking, please leave on Front Page or FR. Thanks.
While checking the seismographs tonight for the region, it is becoming apparent that Mt. Rainier is also awakening along with Mt St Helens. At first, I had hoped that the seismographs at Mt Rainier were merely picking up the earth movement from St Helens, but the tremors do not correlate.
By checking the charts for St Helens back on the 25th of the month - when the current event began - the buildup is easily seen. There are occasional quakes that are of noticeable strength, while the others are extremely small. Moving forward from the 25th, you can see the intensity grow, as well as the frequency shorten. Well, the same scenario is playing itself out right now under Mt Rainier, especially the Longmire station.
Posted below are the charts showing this growth at St Helens, along with the more current ones from Mt Rainier. If Mt Rainier's activity increases in a manner similar to Mt St Helens, this will be an interesting time indeed for all of this region......
Here is Mt St Helens from the 25th:
And here is St Helens again, from the morning of the 26th:
This is Mt St Helens right now. Constant earth movement......
Alert status for Mt St Helens is now at "3". Now for Mt Rainier. Here's the chart for Rainier from yesterday morning/afternoon:
And this is the current chart for Mt Rainier:
As you can see, the earth is starting to move under this volcano as well. The duration of the quakes under Mt Rainier is longer, and the frequency is longer than at Mt St Helens, but there is obviously something going on here as well. I really want this one to go back to sleep.
in early analysis, there's a lot of noise; if you want it packaged and confirmed for you, go wait by your television for the broadcast warning. that should keep you away from us for a while......
I've read such statements before.
And, supposedly they are exceedingly plausible, logical etc.
And, I don't trust them.
Several times I've noted quake epicenters arcing up toward Yellowstone from, I think, the Lassen area.
And, there's the reaction that Hawaii volcano has had to big quakes in Japan etc.
I think things are much more influenced, if not connected, than even the best experts would like to believe.
AMEN! MUCH AGREE.
Important post. Thanks.
So you are saying we have no need to worry about Rainier?
We were up near Mt. St. Helens when it blew in 80'. That is as close to an erupting volcano as I EVER want to be!!!
Looking at the charts seems about an 8-10 second delay.
Hey, I was sitting in a chair near Sonora a couple weekends ago when they got the burst at Mammoth. I felt the first 5.5, and posted about it.
Didn't feel any of the others, though.
This is at Johnston Ridge Vistors Center Tuesday. I think it's about time to leave Johnston Ridge.
It's too far/small to have any noticeable effect, tide-wise. Its gravitational effect on the Earth, at nearest approach, would be about 0.0000000002109375 of the Moon's effect.
Similarly, the energy from an earthquake dissipates with distance away from the hypocenter. A large earthquake can be felt further away. A small quake, less so. Even though large earthquakes can be measured around the world, only a very, very small fraction of the energy emitted can be picked up by the sensitive equipment.
This is not to say that earthquakes can not trigger other earthquakes - that is clearly the case (the secondary earthquakes are sometimes called sympathetic quakes). But that effect has only been recorded on a local scale.
From what djf is posting and reading off of the seismographs, it seems that the larger seismic events at St. Helen's are registering on the seismic stations at Rainer. A ten-second lag time in the arrivals is consistant with with P-wave velocities through igneous rocks at a distance of about 50 miles. (I initially guessed about 50% slower, but I'm used to wave velocities through California sedimentary rocks!)
http://vulcan.wr.usgs.gov/Volcanoes/Cascades/CurrentActivity/2004/current_updates_20040929_PM.html
U.S. Geological Survey, Vancouver, Washington
University of Washington, Pacific Northwest Seismograph Network, Seattle, Washington
9-29
"Volcanoes in the Cascade Range are all at normal levels of background seismicity except for Mount St. Helens."
I have long understood that principle.
I'm skeptical that we know as much about the
forces, energies, dynamics
involved
as we think we do.
It is also a fact, that significant correlates, influences have been noted at least across the Pacific as far as Hawaii from Japan and Indonesia.
I still believe that we will ultimately find that there are energies and forces quite above the mere 'data' level of transmissions much farther than many experts would dare imagine.
You can date the ages of the lava flows or ash layers through several different methods.
Thought probably so, but not my turf!
That large? ;^)
Major Bump!
well, I gotta get some shut eye. If I get knocked outa bed by a 6.0 or greater, I will log and on tell everyone. As long as I don't land on my head.
I remember that soon after the Mt St. Helens eruption there was quite a bit in the papers about Ranier being the next one to go.
It seems that I remember people trying to warn the people who live around Ranier that they could be in great danger and that the general populace more or less scoffed at this.
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