O/T - Yellowstone lake earthquakes

local news just said 20 quakes registered today in Yellowstone one 3.6 and one 3.3 follow up to other thread this week

...at least a minor eruption is possible...the time to watch today is 3:41 pm .eastern..might explode from there...or dump....I think the former...small explosion..
http://stockcharts.com/c-sc/sc?s=$OEX&p=60&yr=0&mn=2&dy=3&i=p53207058758&a=81733615&r=4395.png

Edited by Teaparty, 31 December 2008 - 03:25 PM.

http://www.youtube.c...0...&playnext=1

invest in respirators

remember invision 2001

Thanks for the update hiker. Never mind teaparty, as he thinks he can be rude to everyone that can't post a future chart that means nothing if it's not backed up with quality indicators. He seems to need plenty attention and should go back to using the crying baby avator. PS I love the Etrade baby commercial that says he just bought some stock, then pukes on himself... Seismic Alert, I normally don’t come to you with this level of urgency, but I feel like I need to get this out. In the area of Yellowstone National Park, primarily in the area of Yellowstone Lake there has been a dramatic increase in the number of earthquakes recorded. This area usually has from 1 to 3 thousand quakes per year, as it sits on a dormant volcano, but since December 26 there have been more than 250 registered quakes, which is a dramatic increase. Heck…there have been seven in the last hour! The magnitude ranges from 2.0 to 3.9. Nowhere else in North America is there any kind of seismic activity of note. In fact, Yellowstone is home to the largest active volcano caldera (volcanic depression) in the world. A cataclysmic eruption took place about 640,000 years ago that created the 1750 square mile caldera. Folks, I’m not saying that this thing is ready to blow its top. I’m just saying that if it happens you won’t be worrying about your money…you’ll be worrying about your life. This is an event that literally almost chokes off civilization. Hopefully, what we’re seeing is just the precursor of a much more minor event. I want to really, really be wrong on this folks, you don’t know how much I want to be wrong. But I feel it’s my duty to bring it to your attention. We are having some rather disturbing seismic events taking place in Yellowstone national park literally as we speak. Sorry to be the bearer of this news…I will keep an eye on the activity and alert you as necessary. Thank you for your time. This is Zapata George.

http://volcanoes.usgs.gov/yvo/

YELLOWSTONE VOLCANO OBSERVATORY INFORMATION RELEASE
Monday, December 29, 2008 19:07 MST (Tuesday, December 30, 2008 02:07 UTC)


YELLOWSTONE VOLCANO (CAVW#1205-01-)
44.43°N 110.67°W, Summit Elevation 9203 ft (2805 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN

Earthquake swarm beneath Yellowstone Lake continues.

Thanks for the update hiker. Never mind teaparty, as he thinks he can be rude to everyone that can't post a future chart that means nothing if it's not backed up with quality indicators. He seems to need plenty attention and should go back to using the crying baby avator.
PS I love the Etrade baby commercial that says he just bought some stock, then pukes on himself...

Seismic Alert,

I normally don’t come to you with this level of urgency, but I feel like I need to get this out. In the area of Yellowstone National Park, primarily in the area of Yellowstone Lake there has been a dramatic increase in the number of earthquakes recorded. This area usually has from 1 to 3 thousand quakes per year, as it sits on a dormant volcano, but since December 26 there have been more than 250 registered quakes, which is a dramatic increase. Heck…there have been seven in the last hour! The magnitude ranges from 2.0 to 3.9. Nowhere else in North America is there any kind of seismic activity of note. In fact, Yellowstone is home to the largest active volcano caldera (volcanic depression) in the world. A cataclysmic eruption took place about 640,000 years ago that created the 1750 square mile caldera.


Folks, I’m not saying that this thing is ready to blow its top. I’m just saying that if it happens you won’t be worrying about your money…you’ll be worrying about your life. This is an event that literally almost chokes off civilization. Hopefully, what we’re seeing is just the precursor of a much more minor event. I want to really, really be wrong on this folks, you don’t know how much I want to be wrong. But I feel it’s my duty to bring it to your attention. We are having some rather disturbing seismic events taking place in Yellowstone national park literally as we speak. Sorry to be the bearer of this news…I will keep an eye on the activity and alert you as necessary. Thank you for your time. This is Zapata George.

Here is the list

http://www.seis.utah...ellowstone.html

The first page will list heaviest eq's. Go to the bottom of the page and click for the complete list. I don't like the fact that these quakes are so shallow - only a few a significant depth. I have looked at the actual seizemagraphs and don't see harmonic tremors yet - which is the typical precursor of an eruption. Something is surely going on here though. I have always watched Mammoth Mountain closely - lots of CO2 emissions ( like only people and cars spew this stuff) fully expecting to see a new volcano born in my lifetime but its been eerily quiet lately.

It doesn't show up here. http://www.iris.edu/seismon/

It doesn't show up here. http://www.iris.edu/seismon/

Here is a map of the ash deposits from the last major eruption.

http://www.tetonwyo....e_ash_cover.jpg

The upward movement of the Yellowstone caldera floor - almost 3 inches (7 centimeters) per year for the past three years - is more than three times greater than ever observed since such measurements began in 1923, says the study in the Nov. 9 issue of Science by Smith, geophysics postdoctoral associate Wu-Lung Chang and colleagues. “Our best evidence is that the crustal magma chamber is filling with molten rock,” Smith says. “But we have no idea how long this process goes on before there either is an eruption or the inflow of molten rock stops and the caldera deflates again,” he adds.

The upward movement of the Yellowstone caldera floor - almost 3 inches (7 centimeters) per year for the past three years - is more than three times greater than ever observed since such measurements began in 1923, says the study in the Nov. 9 issue of Science by Smith, geophysics postdoctoral associate Wu-Lung Chang and colleagues.

“Our best evidence is that the crustal magma chamber is filling with molten rock,” Smith says. “But we have no idea how long this process goes on before there either is an eruption or the inflow of molten rock stops and the caldera deflates again,” he adds.

YELLOWSTONE VOLCANO (CAVW#1205-01-)
44.43°N 110.67°W, Summit Elevation 9203 ft (2805 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN

December 2008 Yellowstone Earthquake And Ground Deformation Summary

Earthquake Summary:

Yellowstone seismicity increased significantly in December 2008 due to an energetic earthquake swarm that commenced on December 26. This swarm, a sequence of earthquakes clustered in space and time, is occurring beneath the northern part of Yellowstone Lake in Yellowstone National Park. As of this writing, the largest of these earthquakes was a magnitude 3.9 at 10:15 pm MST on Dec. 27. Through 5:00 pm MST on Dec. 31, the sequence had included 12 events of magnitude 3.0 to 3.9 and approximately 20 of magnitude 2.5 to 2.9, with a total of at least 400 events large enough to be located (magnitude ~1 or larger). National Park Service (NPS) employees and visitors have reported feeling the largest of these earthquakes in the area around Yellowstone Lake and at Old Faithful and Grant Village.

The hypocenters of the swarm events cluster along a north-south-trending zone that is about 7 km long. The vast majority of the focal depths are shallower than 5 km. It is not possible to identify a causative fault of other feature without further analysis.

Analysts are currently processing the backlog of seismic data from these events. The current analyst-processed catalog is believed to include all events of magnitude 2.5 and greater through Dec 31 at 5 pm MST, but hundreds of earthquakes remain to be processed. The total of more than 400 locatable events is based on automatically-determined locations and magnitudes for the swarm events.

The December 2008 earthquake sequence is the most intense in this area for some years. No damage has been reported within Yellowstone National Park, nor would any be expected from earthquakes of this size. The swarm is in a region of historical earthquake activity and is close to areas of Yellowstone famous hydrothermal activity. Similar earthquake swarms have occurred in the past in Yellowstone without triggering steam explosions or volcanic activity. Nevertheless, there is some potential for hydrothermal explosions and earthquakes may continue or increase in magnitude. There is a much lower potential for related volcanic activity.

The National Park Service in Yellowstone has been kept fully informed of the ongoing seismic activity via electronic means and by phone contacts with the University of Utah and the U.S. Geological Survey USGS). The Wyoming Office of Homeland Security is reviewing Earthquake Response Plans and monitoring seismic activity.

Earthquakes are a common occurrence in the Yellowstone National Park area, an active volcanic-tectonic area averaging 1,000 to 2,000 earthquakes a year. Yellowstone's 10,000 geysers and hot springs are the result of this geologic activity. A summary of Yellowstone's volcanic history is available on the Yellowstone Volcano Observatory web site (listed below).

The University of Utah operates a seismic network in Yellowstone National Park in conjunction with the National Park Service and the U.S. Geological Survey. These three institutions are partners in the Yellowstone Volcano Observatory. Seismic data from Yellowstone are transmitted to the University in real-time by radio and satellite links X-Hotmail-From: from a network of 28 seismographs in the Yellowstone area and are available on the web.

Seismologists continue to monitor and analyze data from this swarm of earthquakes and provide updates to the NPS and USGS and to the public via the following web pages.

Information on U.S. earthquake activity including Yellowstone can be viewed at the U.S. Geological Survey web site: http://earthquake.us...er/recenteqsus/.

Information on earthquakes can also be viewed at the University of Utah
Seismograph Stations web site: http://www.seis.utah.edu/.

Seismographic recordings from Yellowstone seismograph stations can be
viewed online at: http://www.quake.uta...tone/index.html.

An article on earthquake swarms at Yellowstone is available at the following: http://volcanoes.usg.../apr04swarm.php

Persons who felt any of the earthquakes are encouraged to fill out a survey form on the USGS 'Did You Feel It?' web site: http://earthquake.us.../eqcenter/dyfi/.

Geologic information, maps, and monitoring information for Yellowstone can be found on the Yellowstone Volcano Observatory web site at:
http://volcanoes.usgs.gov/yvo/.


Ground Deformation Summary:

Through December 2008, continuous GPS data show that much of the Yellowstone caldera continued moving upward, though at a lower rate than the past few years. The maximum measured ground uplift over the past 53 months is ~23 cm at the White Lake GPS station, north of Fishing Bridge. An example can be found at:
http://pboweb.unavco...;timeseries=raw.

The general uplift of the Yellowstone caldera is scientifically important and will continue to be monitored and studied closely by YVO staff.

A discussion of the current uplift episode at Yellowstone and long-term ground deformation at Yellowstone and elsewhere can be found at: http://volcanoes.usg...upsanddowns.php.