Whats going on at yellowstone?

reply to post by PuterMan

Good Morning. Actually I am guessing. After I started watching
B944 EHZ in GEE I happened to notice that the seismic data had
a very apparent slope to it, ie the data on the left side of the
display were near the bottom edge of the window and the data
at the right side were near the top of the display window. Then
I noticed that the amplitude or magnitude numbers on the left
were not centered around zero like the WY stations, and in fact
went from around 250 to 300 COUNTS. As the day progressed
those numbers kept going higher until late at night they maxed
out at over 450. Then I remembered the time series plot
that you can see at the bud explorer site and looked at a number
of them for B944 and noticed the approximately day long period
of this up and down motion.

Today I have read that the BP sites have both stain guages and
GPS instruments as well as a number of other things like temp.
and barometric pressure. And they talk about earth tides, but
I have not yet learned what we are actually looking at in the
seismic data.

It would sure be nice, to find a paper on
this somewhere, or maybe there is an expert lurking who knows
and could give the answers.

What ever it is it seems to have some effect on the micro
seismic activity. Here is the B944 link picture now after 20
hours.
www.iris.edu...

Since I wrote this I have examined more historical data and
there are days when the behavior is quite different, ie it does
not follow this same pattern.

I have been unable to find a simple
description of what the graph at the above link represents.
They do change the color if there are gaps in the data. But
I don't know why some events are shown as positive going
lines and others by negative going lines.








[edit on 9-3-2010 by EngTech36]

reply to post by EngTech36


Well you are seeing what I was seeing, but thinking about it there are approximately 12 hours between high tides if we are talking about the sea, so would you not expect the same and therefore if midnight was low tide, mid day approximately would also be, and 1800 would be high not low?

I certainly would like to know what make the traces do this. I have to say that so far I have not noticed this on non Yellowstone recorders, but I will take a look at some more and try and verify that.

reply to post by EngTech36


This link may get you in contact with someone who can either answer your questions (as I am sure you have more than what you just posted) or give you direction to the information you are seeking. Please do share when you find the answers. I think though it may be more of a course than a sheet of paper. :-)

reply to post by PuterMan


Thanks for that. So I checked some other BP stations and they
show similar patterns. I agree about the double bump. So I
started looking for a station on the equator. Found IU.OTAV
and wow look at it!!
www.iris.edu...

So what we see in Yellowstone may have to do with how far away
from the equator it is. This is interesting.

Anmarie96: Thank you for the link. Think I'll start with a very
short question and see what happens!!!



[edit on 9-3-2010 by EngTech36]
And I need to be more careful with my english!

[edit on 9-3-2010 by EngTech36]

reply to post by Anmarie96


reply to post by EngTech36


Try Jim Fowler. I have been emailing him about something else. He seems very helpful.

Wow, that one looks interesting. I must see if I can get that on sound.

[edit on 9/3/2010 by PuterMan]

reply to post by PuterMan


So it looks like it is earth tide with the beautiful double sine wave
in 24 hours at the equator. In the summer time at the north pole
you would see the sun and moon all the time, so the tide action
would be very different.

And thanks for the contact person.

So B208 is doing it's micro thing again tonight. But now there is
a new place to watch
www.quake.utah.edu...
Is this just more lake front standard behavior?

reply to post by EngTech36


Looks like small quakes at first glance.

I will have a 'listen' to that trace later on when I get time to download it.

Originally posted by EngTech36
So B208 is doing it's micro thing again tonight. But now there is
a new place to watch
www.quake.utah.edu...
Is this just more lake front standard behavior?

that where the resonances of the recently chili quackes....


MAP 6.0 2010/03/11 15:06:04 -34.218 -71.889 32.0 LIBERTADOR O'HIGGINS, CHILE
MAP 6.7 2010/03/11 14:55:30 -34.263 -71.782 35.0 LIBERTADOR O'HIGGINS, CHILE
MAP 6.9 2010/03/11 14:39:48 -34.251 -71.889 35.0 LIBERTADOR O'HIGGINS, CHILE

remark: since 3 day's blank there is an sunspot again.... is seems to be calmer with eq's when there are no sunspots visible....







[edit on 11-3-2010 by ressiv]

[edit on 11-3-2010 by ressiv]

Not much going on here, so I thought I could post an update on the recent earthquakes in YS area..

MAG DATE LOCAL-TIME LAT LON DEPTH LOCATION

1.6 2010/03/08 09:33:07 45.025N 111.271W 4.0 27 km (17 mi) S of Big Sky, MT
1.2 2010/03/06 15:32:29 44.531N 110.586W 5.4 44 km (27 mi) ESE of West Yellowstone, MT
1.4 2010/03/06 15:31:46 44.528N 110.587W 5.2 44 km (27 mi) ESE of West Yellowstone, MT
0.9 2010/03/06 05:43:46 44.619N 110.672W 6.6 35 km (22 mi) E of West Yellowstone, MT
1.1 2010/03/06 05:43:28 44.624N 110.674W 6.5 34 km (21 mi) E of West Yellowstone, MT
1.5 2010/03/05 13:52:18 44.428N 111.056W 7.3 24 km (15 mi) ESE of Island Park, ID
0.4 2010/03/04 19:11:00 44.562N 110.976W 7.4 15 km ( 9 mi) SE of West Yellowstone, MT

reply to post by ressiv

Sorry for the confusion, I forgot that the links are alive and continue
to change. If you will notice I posted this a little after 3:00 AM, long
before the Chili quakes happened and was referring to the tiny
quakes at the beginning of the day. They continued until about
12:00 UTC and approach 50 in number. I think that is something
new for this station. After I made the post a number of small
quakes also occurred at station B944 on the south edge of Little
Thumb, as well as the ones at B208 on the north edge of lake
Yellowstone. YHB being near another lake prompted my other
remark.

Notice all the small quakes at B208
www.iris.washington.edu...

and although harder to see, notice the period from 8:00
to about 12:40 UTC at station B944
www.iris.edu...

My suspicion is that this probably goes on most of the time, as
the earth is pulled up and down by the Lunar Tide, realizing that
pressures from beneath can also cause this. I don't think it
means a whole lot but I find it interesting, to get a feel of the
earth's behavior.

[edit on 11-3-2010 by EngTech36]

reply to post by EngTech36


Interesting snap crackle pop sound at WY:YHB::EHZ just before the Chile quakes registered. It really does not show on the trace much.

Play Sound but don't turn up too high as it has some sharp pops. This file is < 1 Mb

I will be uploading another soon.

Edit: OK here we go.

Be warned this is a big file and weighs in at 42.5 MB - definitely not for the dialup.

It is the recorder WY:YHB::EHZ from o7:50 UTC today to about 12:00 UTC today and is a t 30x speed. It about covers all those little squiggles on the siesmo.

[edit on 11/3/2010 by PuterMan]

watch station YMR... lines are chanced since the big readings.....

so check out the live video of old faithful right now:

live cam

I don't watch this too often, but it seems there's a lot of small venting with dark gasses escaping right now. The camerman is zooming in on them too, rather than the larger, white venting next to them (making the contrast more obvious).

I don't know how often this happens, but maybe the shaking from the Chile quake can have an affect?

reply to post by EngTech36


On the subject of Earth Tides I thought you might be interested in this seismogram showing an Earth Tide trace. I know it is not Yellowstone but this clearly illustrates the forms we have seen on the Yellowstone recorders.

I find this absolutely fascinating and must look into it some more. It only becomes apparent when you look at long stretches of data which may be why I had not noticed it before.

I found this particular part in the text very interesting:

The curves are a band instead of a line, as the constant rise and fall of Ocean generated microseisms is superimposed on the M shaped line which represents earth tide.

Does this mean that a lot of what we see in the recorders is the ocean??

This page is also useful as it shows how to filter the signals.

[edit on 12/3/2010 by PuterMan]

reply to post by PuterMan


nice work, Puterman and Engtech!!! Now we are getting somewhere!!!! Robin are you reading this?? I have yet to hear the latest audio's. Hopefully later in the day I will be able to pull them up.

reply to post by PuterMan

Just woke up go GEE going crazy. Looks like a real earthquake,
closest to B207. See YMR
www.quake.utah.edu...

Wow PuterMan you have been busy. Listening to the long recording,
it is a little like a fireworks show, or thunder. The sound seems
to have a natural reverberation. My guess is that I heard a lot
more than 50 microquakes during that time. There is a lot of
difference is size, but some also have a different sound quality,
and that might indicate different locations. I can't wait to learn
how to get this going on my computer. I will try to install your
program today.

Great info on the earth tides and surf noise. Here in Oregon
near Portland I used to pick up seismometer MTM by radio and
listen to the wobbling sound in real time, and I could always hear
the continuous effect of the surf pounding the coast over
70 miles distant from the instrument.

Jim Fowler responded to say he has passed my questions along
to someone in a different department, for answers.

So we'll see if any more real earthquakes occur in Yellowstone
today.

PS: Has anyone noticed the background noise on B944 EHZ?
www.iris.edu...
There seems to be something going on and off on an approx.
hourly schedule, although as of this post at 15:20 UTC it was
on last for almost 2 hours. I wonder is there is a list somewhere
of known natural or man made noise for each seismometer?
I would think that a lot of the things we see have known causes.

Like at B944 is it a heat pump, or does the bore hole have water
coming into it that has to be pumped out? Or is there a geyser
near by? or or or? The bore hole instruments are supposed
to be deep enough to get away from surface noise.

I see that B944 is still at high tide.
www.iris.edu...


[edit on 12-3-2010 by EngTech36]

Sorry for all the edits but I just noticed this. At around 10:00 UTC
there is a slight dip in the B944 tide. Now check this out at B208
www.iris.edu...
Notice how the microquakes almost stopped during the dip.



[edit on 12-3-2010 by EngTech36]

reply to post by PuterMan

Regarding your long file above. I don't know anything about
ATS media, but is there a way I can download the wav file so I
can play it through the graphic equalizer in media player, or do
you know of a Firefox filter plugin? Is there a parametric equalizer
program out there so you could notch out certain frequencies?

Thanks

reply to post by EngTech36


I am not sure how you download it from ATS either so I have put it on 4Shared in my Yellowstone Area. You will find the file in the Sound Files folder. It won't finish uploading until about 19:00 UTC - It has finished

The program to use to strip out frequencies is Audacity.

Actually Audacity may not do what you want re-reading, unless you use the high and low pass filters. Not sure but it is a program worth having anyway.


[edit on 12/3/2010 by PuterMan]

reply to post by PuterMan


I found it. Thank you very much.

PS: The event seen through out the park at 18:07 UTC appears
to be a mine blast near here.
www.iris.washington.edu...

I have an old copy of Audacity. I should replace it with a new
version. I used to work in the music business and we had custom
DSP software, which I have no access to anymore, and I miss the
tools we had!!


[edit on 12-3-2010 by EngTech36]