Whats going on at yellowstone?

reply to post by MoorfNZ


Which one? H17A.TA..BHZ.2010.177

Looks like the tail end of a small distant earthquake.

reply to post by Austria
I totally agree with you when it comes to the effect of minor quakes. Lab tests and simulations here show that "small" quakes can do quite some damage. We all just have to agree that any "new" cracks, small or big, weaken the overall structure. Not only that, but the amount of damage (including the magnitude of the quake) will depend on the composition of the materials where the quake occur. So, a “small” quake can indeed do just as much damage as a “big” on depending on the material composition on the site.

I think we also have to take into account Seismic Wave Propagation. When waves reach a boundary between different rock types, part of the energy is transmitted across the boundary. The transmitted wave travels in a different direction which depends on the ratio of velocities of the two rock types. Part of the energy is also reflected backwards into the region with Rock.

The tests and the simulations here show that it's not only the wave that do spread, but also the force of the quake itself.

[edit on 27/6/2010 by Roald]

Some really interesting signatures in the park today. A small earthquake near Horse Butte and since about 11:00 MST general disorder picking up on all stations in the park. Some look like wind, others look a little more like micro-seismicity.

Also, before the earthquake there were two instances in the Horse Butte area of long signatures that definitely do not look like wind and I don't see any significant quakes today to account for a teleseism.

Puterman, I'd be interested in your opinion if you can "listen."

Oh nevermind, severe thunderstorm watch and 30 MPH winds forecasted. That's probably what that's all about.

I still think this morning's events were interesting, but what's going on tonight is probably weather related.

Definitely a bump at YMR a short time ago:

www.quake.utah.edu...

My guess is 1.2 or so.

reply to post by quakewatcher
Why does it not show on usgs ?
Jus wonderin

They are pretty inconsistent about updating unless it's over 2.0 or so, at the YVO. On weekends they often don't update at all. If it's placed on the map it may not be until it's a yellow square.

Well, there was a M1.6 quake just West of Hebgen Lake July 01.

M 1.6, western Montana Date: Thursday, July 1, 2010 14:29:52 UTC Thursday, July 1, 2010 08:29:52 AM at epicenter Depth: 7.70 km (4.78 mi)

Earthquake list has been updated. A little flurry yesterday/today, in the lake region.

1.7 2010/07/02 02:34:37 44.578 -111.105 11.2 9 km ( 6 mi) S of West Yellowstone, MT
1.0 2010/07/01 23:01:22 44.398 -110.373 5.1 65 km ( 40 mi) ESE of West Yellowstone, MT
1.3 2010/07/01 22:57:28 44.389 -110.367 5.5 66 km ( 41 mi) ESE of West Yellowstone, MT
1.6 2010/07/01 14:29:52 44.769 -111.179 7.7 13 km ( 8 mi) NNW of West Yellowstone, MT

================
Happy Independence Day
================

Have a good one you American friends and enjoy the day. Old Yellow is not going to blow while you are not watching - at least not today anyway!

YPP is putting on a little show for Independence Day Eve. Nothing too major, just a couple of M-80s and some sparklers.

The plot is looking pretty disorderly at the moment though.

www.quake.utah.edu...

(May have to look at the link for yesterday if you are reading this after midnight Mountain Time.)

Have you noticed that in Yellowstone, in contrast to other super volcanoes, are very few strong earthquakes? The last strong earthquake was in 1975..

Taupo: M 6.2 - 1999, M 5.8 - 1965, M 5.2 - 2007 .....

YPP is going funky again, with those long waves.

Anybody got GEE up and running? Now's the time to look.

www.quake.utah.edu...

[edit on 7/4/2010 by SUICIDEHK45]

I think we're a long way from that scenario. I'm just interested in these weird looking long bumps on the YPP plot. I tried to load up GEE but I think it doesn't like Windows 7. I'm interested in what the data looks like in a more raw form.

We're still talking about teeny tiny little microseismic events.

I'm sorry, I must be slacking - no - just quiet smoking and having a tough time - but here you all go

YELLOWSTONE VOLCANO (CAVW #1205-01-)
44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

During the month of June 2010, 131 earthquakes were located in the Yellowstone region. The largest event was a magnitude 2.9 on June 25th at 6:07 PM MDT, located about 15 miles south southeast of Old Faithful, YNP. One small earthquake swarm was recorded from June 6th through 12. The swarm included 47 earthquakes with magnitudes ranging from 2.2 to -0.5 and was located 6 miles east of West Thumb, YNP. Seismicity continues at background levels.

Ground Deformation Summary: Continuous GPS data show that uplift of the Yellowstone Caldera has ceased for now. The WLWY station, located in the northeastern part of the caldera, underwent a total of ~23 cm of uplift between mid-2004 and mid-2009. Its record can be found at:
pboweb.unavco.org...×eries=raw

Well folks, I got back this weekend from Yellowstone, and all I can say is, it is truly an amazing place to visit. The power of mother nature can be seen first hand right there in the boiling hot springs, geysers, fumaroles, and mud pits.

All in all, nothing was out of the ordinary. No earthquakes felt. Everything seemed to be in order. About the only interesting "new' event to happen there was in the "North Basin Geyser Field" area of Yellowstone. A new roaring, grumbling, sloshing mud pit/hot spring has opened up right next to, and slightly under the boardwalk a few months back. They are monitoring the situation and they may have to move a section of the boardwalk around this new thermal opening. But then again, that is the dynamics of Yellowstone. New thermal areas open up, others end and shut down. Some go dormant, others get violently active. Years ago there were some instances where a gentle geyser exploded apart in a large explosion, sending rocks hundreds of feet away. Other times a very active geyser shut down and gently boiled water. Sometimes a new hot spring that was quite for decades began to erupt water and mud. Its all just awe inspiring. Some springs go dry and some turn into mud pits.

Overall, I was amazed, inspired, and just filled with awe at the power of nature. The hot fumaroles spewing hydrogen sulfide gas and steam just alone, make you feel like something is down there, and its big. But so far, ts sleeping. I would recommend a trip to Yellowstone for all ATS members. I believe a trip to Yellowstone will clear up some of the mystery and give a whole new perspective of this amazing area.

Plus it may just answer some questions and put a whole new perspective on the area. I know it has for me.

reply to post by GenRadek

I will agree that its a tremendously beautiful place and full of great mystery if you know the history. However it is a place that one should hold great respect for. As to remind those that forget ,.. It is a Super volcano that you are walking on. and though it appears quiet,.. it cannot be trusted to just turn your back on..


[edit on 7-7-2010 by Lil Drummerboy]

Hi folks, doubtless like many other members I'm still quietly following this thread. I deeply appreciate the sensible and well-reasoned input. I've had little of any substance to add so have kept quiet for a while.

reply to post by GenRadek


Thank you very much for your eloquent, first-hand-oriented post. If I ever get to the USA, Yellowstone is very high on my list of places to visit. I have American friends who have been there and one even brought some video to show me when he crossed the The Pond for a visit here a few years back. Magnificent place and you are blessed to have it. Okay, it could blow up one of these days but the odds are it won't be any time soon.

Best regards,

Mike

What's going on at Yellowstone? NOTHING.

Thread: Done.