Author Topic: New developments at Yellowstone - Harmonic Tremors? (Merged Threads) (Read 50550 times)

RocketMan · « **Reply #50 on:** December 31, 2008, 10:56:30 PM »

Interesting developments at Yellowstone...

Sunday - 102 measured earthquakes under the lake.
Monday - 36 earthquakes
Tuesday - 22 earthquakes
Wednesday (as of 1505 UTC) - 55 earthquakes

Today's seismograph image here:
http://www.quake.utah.edu/helicorder/heli/yellowstone/Uuss.LKWY_SHZ_US.2008123100.gif

To my non-vulcanologist eyes, it looks like harmonic tremors began around 1715 UTC today. I found another reference to harmonic tremors in a news blog, but am unsure as to its credibility, so I left it unlinked.

Anyone with more expertise care to chime in?

RocketMan · « **Reply #51 on:** December 31, 2008, 11:39:50 PM »

Interesting developments at Yellowstone...

What we know already is:
Sunday - 102 measured earthquakes under the lake.
Monday - 36 earthquakes
Tuesday - 22 earthquakes
Wednesday (as of 1505 UTC) - 55 earthquakes

Today's seismograph image can be found here:
http://www.quake.utah.edu/helicorder/heli/yellowstone/Uuss.LKWY_SHZ_US.2008123100.gif

To my non-vulcanologist eyes, it looks like harmonic tremors began around 1715 UTC today. I have found several references to harmonic tremors in various news blogs, but am unsure as to their credibility, so I left them unlinked.

Anyone with more expertise care to chime in?

anygunanywhere · « **Reply #52 on:** December 31, 2008, 11:58:13 PM »

I am not a geologist, but I was a doodlebugger electronics technician who specialized on the Texas Instruments DFS5 seismic system when I worked for Seiscom Delta in the late '70s.

The Yellowstone caldera is fixin' to blow. TEOTWAWKI is here.

We will not make it to the 2012 Mayan calendar.

Anygunanywhere

Boomhauer · « **Reply #53 on:** January 01, 2009, 12:06:16 AM »

So it looks like the Mayans were 3 years off...

BridgeRunner · « **Reply #54 on:** January 01, 2009, 12:07:13 AM »

Utterly inexpert, but I have come across several articles on the relative temperatures involved. According to some, it's big, but fairly cool.

Harold Tuttle · « **Reply #55 on:** January 01, 2009, 12:25:53 AM »

now wait a second what is this American national park doing to offset its potential co2 emissions?

Think of the polar bears!

Standing Wolf · « **Reply #56 on:** January 01, 2009, 12:30:41 AM »

It's obviously Bush's fault.

Hawkmoon · « **Reply #57 on:** January 01, 2009, 12:39:25 AM »

So, like, can Mother Earth trade some carbon credits? Where does Algore buy his?

txgho1911 · « **Reply #58 on:** January 01, 2009, 12:40:46 AM »

RNC and Karl Rove helped him on this one. Rush kept his name and face hidden for this one.

Zardozimo Oprah Bannedalas · « **Reply #59 on:** January 01, 2009, 01:17:00 AM »

We're all gonna die.

And it'll be on Youtube.

RocketMan · « **Reply #60 on:** January 01, 2009, 01:19:01 AM »

Another data point: Many of today's quakes have been less than a mile deep. Some have been as shallow as a tenth of a mile, or about 500 feet deep.

Bogie · « **Reply #61 on:** January 01, 2009, 01:41:07 AM »

Looks like James Brown meets Prince...

Of course, we could get a small popoff... The area is pretty active...

Bogie · « **Reply #62 on:** January 01, 2009, 01:42:27 AM »

Is the lake steaming yet?

The USGS folks don't seem hugely worried... Cat Whiz is at the eastern end of Misery, so we should be okay here if anything gnarly pops... I've only got about 10-15,000 rounds here tho for the old hunter-gatherer activity...

Manedwolf · « **Reply #63 on:** January 01, 2009, 04:06:56 AM »

Quote from: Bogie on January 01, 2009, 01:41:07 AM

Looks like James Brown meets Prince...

Of course, we could get a small popoff... The area is pretty active...

And the American public, having equated Yellowstone with "supervolcano", would completely panic.

Manedwolf · « **Reply #64 on:** January 01, 2009, 04:45:45 AM »

Quote from: RocketMan on January 01, 2009, 01:19:01 AM

Another data point: Many of today's quakes have been less than a mile deep. Some have been as shallow as a tenth of a mile, or about 500 feet deep.

Chimney!

Seriously, quakes in the exact same location, same point, the entire range of vertical depth from the magma chamber to near surface? Sounds awfully like a vertical chimney causing radial fractures under pressure.

I do think there might be a vent under the lake. This could get interesting.

Also, what the hell was this?

http://www.seis.utah.edu/helicorder/heli/yellowstone/Uuss.LKWY_SHZ_US.2009010100.gif

just Warren · « **Reply #65 on:** January 01, 2009, 05:00:54 AM »

Maybe there's a race of Super Vulcans trying to dig their way to the surface.

Manedwolf · « **Reply #66 on:** January 01, 2009, 05:23:50 AM »

Look at the latest graph.

http://www.seis.utah.edu/helicorder/heli/yellowstone/Uuss.LKWY_SHZ_US.2009010100.gif

There's something going on down there.

Ex-MA Hole · « **Reply #67 on:** January 01, 2009, 07:33:42 AM »

An inkblot of a chicken wearing a miniskirt while walking a dog?

jamz · « **Reply #68 on:** January 01, 2009, 08:15:15 AM »

The one that happened 37 km down at 3 in the morning makes me pause a bit. That ain't steam.

Fly320s · « **Reply #69 on:** January 01, 2009, 08:20:19 AM »

Its just a bunch of archaelogists digging for spanish gold.

<smile and wave, boys>

RocketMan · « **Reply #70 on:** January 01, 2009, 09:34:12 AM »

Another data point:
I read late last night where surface winds near the lake area had picked up to 30 mph plus. This has been known to cause funky readings on shallow set seismometers, the kind used to monitor this type of activity.
The wind was active during the time that the harmonic-looking readings were occurring. I wonder what the readings from nearby seismometers that may have been unaffected by the wind look like?

Five quakes on 01/01/09 as of 0551 MT time.

Today's 'graph. http://www.quake.utah.edu/helicorder/heli/yellowstone/Uuss.LKWY_SHZ_US.2009010100.gif

I sure wish I knew more about what to look for. This is very interesting to me because I had a ringside seat for Mt. St. Helens back in 1980. It was really something to watch that event develop over a matter of weeks, from the first quake, to the onset of the swarm, then harmonic tremors, and finally, BOOM!

AJ Dual · « **Reply #71 on:** January 01, 2009, 10:53:49 AM »

I REALLY don't want the super-caldera to go up in my or my children's children's lifetime...

I want it less than an asteroid/comet impact. At least with that the odds are it'll be smaller than the Chixiculub/KT impactor, and land in the ocean somewhere.

WI is easily in the fatal/house collapse ash-fall area. And even if it isn't, this far north is not a good place to be for the ensuing mini Ice Age.

Those maps posted earlier, a lot of that is just where the ash was thick enough to become a major strata, or even rocks and lava ejected from the caldera are found. And that southern bias in those geological maps of the ash and ejecta is probably due to the fact that that many thousands of years ago, the weather patterns, prevailing jet-streams, and climate were different then.

A Yellowstone supervolcano is one of the few disasters that really makes me consider if I'd have to "take care" of my family. :|

Manedwolf · « **Reply #72 on:** January 01, 2009, 11:19:26 AM »

Quote from: RocketMan on January 01, 2009, 09:34:12 AM

I sure wish I knew more about what to look for. This is very interesting to me because I had a ringside seat for Mt. St. Helens back in 1980. It was really something to watch that event develop over a matter of weeks, from the first quake, to the onset of the swarm, then harmonic tremors, and finally, BOOM!

The "what to look for" is the harmonic tremors. Earthquakes tend to have events, and then aftershocks as the rock sort of rings like a bell. But a constant, rhythmic "rumble" means that a lot of magma is on the move down there.

I am trying to figure what this one was. This was Mary Lake on the 29th. This one freaked me out a bit, especially since the sensor seems to have gone offline in the middle of the next series like it on the 31st.

http://www.seis.utah.edu/helicorder/heli/yellowstone/Uuss.YML_EHZ_WY.2008122900.gif

Werewolf · « **Reply #73 on:** January 01, 2009, 12:06:30 PM »

Quote from: Manedwolf on December 30, 2008, 10:11:29 AM

Doubtful. It takes people who have guts and resolve to be astronauts. Watch how quickly and calmly they deal with crises on their own in a resourceful manner.

I forget what writer said that..."The meek may inherit the earth, but the strong will go to the stars."

Don't think RA Heinlein said it but in Time Enough for Love that was definitely one of the main thesis of many of the philosophical monologues of Lazrus Long.

Lennyjoe · « **Reply #74 on:** January 01, 2009, 12:21:56 PM »

Hmmp, wonder if I'd be safer in Arizona or up here in WVA when she blows............

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Author Topic: New developments at Yellowstone - Harmonic Tremors? (Merged Threads) (Read 50550 times)