Whats going on at yellowstone?

Originally posted by BOTOH
reply to post by WSPfan

 

IF it is JUST an echo of the 7.8 then why does it show on some seismographs but not all? This is a question, not a challenge. I'm just trying to figure this out.

Good question, but since these are longer waves, maybe some stations hit them on a peak??? Others not so much??? Good question though.

Here is a 7.4 on 2-20-2008:

LKWY for 2-20-2008

I think we can assume that this recent wave pattern was from the Indonesia quake.

Thoughts?

Originally posted by WSPfan
Here is the page for the calendar with all the parks graphs going back several years, it was posted on this thread at one point:

Archived graphs for Yellowstone sensors

You can look at any of the stations for years.

Here is a graph for LKWY for a 7.2 in Indonesia on 2-25-2008:

LKWY for 2-25-2008

Thanks for finding these "historic" dates in earthquake history... it's fantastic to compare the signatures from these events to the things that are happening currently.

These links (and much more!) can be found on the wiki.

-K

reply to post by trusername


on RSOE EDIS in the list dated 00/00/0000 . An 7.8 time 19:43

So it looks like Yellowstone isn't going to do anything after all.

That's a relief.

Take a look HERE at the sensor at West Thumb, then roam down the guyser trail towards West Yellowstone and compare the response of the various units. Seems that if it is the "ringing of the earth" then some sensors have better sterio amplifiers than others.

is it me being a bit thick, but if it does that to the sensors buried deep below, what effect does it have on the caldera

reply to post by RFBurns


Did you get your GEE working yet?
I saved the dataset from the waves that just went through the park sensors - If I did it right anyway.

Dataset

www.nps.gov...


Here is a live view of old faithfull. Lets all watch as it goes ka-boom!!!

Originally posted by toast317
So it looks like Yellowstone isn't going to do anything after all.

I honestly doubt that the data seen since late December all was a lead-up to this Indonesian quake.

If it was, I think we may have just provided the world with a predictor...

-K

reply to post by toast317


I'm thinking the same. However, the ammount of knowledge we gathered thanks to this event and the hours we have spent (and keep spending) makes it all worthy.

It has been quite an amazing ride. I didn't think I could learn so much our home planet and how alive it is.

It's overwhelming really.

[edit on 3-1-2009 by xsamaelx]

Evening all.

Interesting stuff, at least we can now recognize the trace of a distant quake on these and not become too bogged down in it.

It's fascinating to see how the graphs have changed completely since just yesterday.
While I am glad that nothing has (yet) happened, I am a little disappointed that we haven't seen a geyser being born.

But it's unpredictable as always, so you never know.

Originally posted by sageturkey
reply to post by RFBurns

 

Did you get your GEE working yet?
I saved the dataset from the waves that just went through the park sensors - If I did it right anyway.

Dataset

Seems to be empty -- just like all of the datasets that I've tried to save from GEE..

I'm guessing that we're doing it wrong.

-K

reply to post by xsamaelx


True, i think this has really opened some people's eyes to how wonderful this planet is. However, as for activity don't count your chickens just yet, the recent activity is still very unusual and it hasn't quietened down enough yet to state that everything is over. Let's keep our eyes open, eh?

Originally posted by toast317
So it looks like Yellowstone isn't going to do anything after all.

That's a relief.

Like I said it's just a hype but of course my opinion is not very popular amongst fearmongers.

I wouldnt be so sure, this is up to 20 microns and constant. Anyone else in GEE seeing this?





My software malfunctioning? Im going to reboot. If this isnt a malfuction this is very bad. Unless or course its some kind of wind which we pretty much agreed wasnt going on.

reply to post by Not Authorized


To add to the mix, S-waves (surface waves) only travel through rock. P-waves can travel through rock and fluid. Often, long distance quakes can only be seen "at distance" through long wave propagation.

The Teton's are mostly rock and you'll see nice long S-waves.

A P-wave is basically a compression wave. The sensor will move back and forth, sorta n/s or e/w. (can also cause Z axis movement if on the other side of the earth)

An S-wave is a surface wave and causes the sensor to go up and down, in addition to n/w or e/w.

Hence, why we have 3D motion sensors. N, E, and Z.

If you're using GEE, you might notice a difference in the Z axis (larger) than the N or E.

edited - P can also move Z, but it's still a compression wave as opposed to a surface wve

[edit on 1/3/2009 by startx.jeff]

Hi all,

the Afghan quake is in fact highly relevant to your discussions because of its P-wave effects on US seismographs.

The interesting wave you've seen on YFT and some others is the P-wave from the quake in Afghanistan, which according to this USGS page for Phase Data for the Hindu Kush quake was recorded on YFT at 20:36:42.23 UTC and on many other US recorders within a few seconds either side of that time, including some others in Yellowstone that you'll find in that long list. Scroll down to find that precise time and there it is. That trace wasn't from a quake or tremor originating in the park at all but from almost exactly half-way round the world, which is why the signal is sooo clear.

If you have a look at the Theoretical P-Wave Travel Times for that same quake, you'll see that it takes around 13-odd minutes for the P-wave to reach that part of the US.

The mag 7.6 in Indonesia didn't register so well but that's because that part of the US is within the P-wave shadow zone that extends from about 103-140 degrees from a quake's point of origination. Have a look at the P-wave chart for this quake here and you'll see what I mean.

It's one reason why we have to keep an eye on what's going on in other places, specially if they're not in the shadow zone relative to the US.

Anyhow I'm off to dinner. Catch you all later.

Regards,

Mike

[edit on 3/1/09 by JustMike]

reply to post by Memysabu


See this too..
Have first seen the waves for afganistan, this is different.
But defently there is something pussing..


PS: sorry for typo's

What happend with the webcam by the old faithfull ?