14
   

Washington State Tragedy Time and Unforseen Occurance

 
 
Butrflynet
 
  2  
Reply Mon 21 Apr, 2014 01:26 pm
@farmerman,
For anyone reading along, here's info on the Snake River hotspot that Fman referred to:

http://en.m.wikipedia.org/wiki/Snake_River_Plain

And here's info on the Yellowstone cauldra.

http://volcano.oregonstate.edu/vwdocs/volc_images/north_america/yellowstone.html
Butrflynet
 
  1  
Reply Mon 21 Apr, 2014 01:36 pm
@Butrflynet,
Well, looks like the USGS is debunking most of it.

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

Here is the detailed report for March.

http://volcanoes.usgs.gov/activity/archiveupdate.php?noticeid=9896

YELLOWSTONE VOLCANO OBSERVATORY MONTHLY UPDATE
Tuesday, April 1, 2014 11:57 AM MDT (Tuesday, April 1, 2014 17:57 UTC)


YELLOWSTONE VOLCANO (VNUM #325010)
44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Seismicity
During March 2014, the University of Utah reports 277 earthquakes were located in the Yellowstone National Park region. More events will be added as the University of Utah Seismograph Stations, responsible for the operation and analysis of the Yellowstone Seismic Network, processes the remaining March events. The largest event was a light earthquake of magnitude 4.7 on March 30, at 06:34 AM MDT, located four miles north-northeast of Norris Geyser Basin in Yellowstone National Park, Wyoming. The M4.7 main shock was reported felt in Yellowstone National Park, in the towns of Gardiner and West Yellowstone, Montana and throughout the region. This is the largest earthquake at Yellowstone since the early 1980s. Initial source analysis of the M4.7 earthquake suggests a tectonic origin (mostly strike-slip motion).

March 2014 seismicity was dominated by two earthquake clusters in the Norris Geyser Basin region and are described below.

1) A north-south trending series of earthquakes, over seven miles in length, began in September, 2013 and persisted throughout March with 130 events. The largest earthquake (magnitude 3.5) occurred on March 26, at 05:59 PM MDT, located 13 miles south-southwest of Mammoth, WY.

2) The earthquake series containing the March 30 magnitude 4.7 event began on March 27 and continues into April. At the end of March the series consisted of 70 located earthquakes, including the largest earthquake of the month, four magnitude 3 earthquakes, and numerous magnitude 2 and smaller earthquakes.

Earthquake sequences like these are common and account for roughly 50% of the total seismicity in the Yellowstone region.

Yellowstone earthquake activity in March is elevated compared with typical background levels.

Ground deformation
The ground deformation occurring in north-central Yellowstone continues. Since August 1, 2013, the NRWY GPS station has moved about 1.5 cm east, 2 cm north, and 5.5 cm up.

Further south, the caldera subsidence, which began in 2010, has ceased. Since the beginning of 2014, the caldera has been slowly rising at a rate of about 2 cm/yr. All the deformation currently occurring in Yellowstone remains well within historical norms.

The Yellowstone GPS network recorded no deformation associated with the March 30, 2014 M4.7 earthquake. Earthquakes of this size and depth do not typically produce ground displacements large enough to detect with GPS.

Other
The GPS field crew at Yellowstone has traveled around the Park over the past week and has not observed any effects from the earthquake. If any subtle changes have occurred, they are most likely to be found after the snow melts.

YVO's real time temperature data in Norris Geyser Basin indicate no significant changes to the thermal features that are monitored.(http://volcanoes.usgs.gov/volcanoes/yellowstone/yellowstone_monitoring_32.html)

The Yellowstone Volcano Observatory (YVO) provides long-term monitoring of volcanic and earthquake activity in the Yellowstone National Park region. Yellowstone is the site of the largest and most diverse collection of natural thermal features in the world and the first National Park. YVO is one of the five USGS Volcano Observatories that monitor volcanoes within the United States for science and public safety.

YVO Member agencies: USGS, Yellowstone National Park, University of Utah, University of Wyoming, UNAVCO, Inc., Wyoming State Geological Survey, Montana Bureau of Mines and Geology, Idaho Geological Survey
0 Replies
 
parados
 
  1  
Reply Mon 21 Apr, 2014 01:37 pm
@farmerman,
I saw that on the news. They showed pictures of crews placing concrete barriers to prevent further slides.

This seems to have more info on it.
http://planetjh.com/2014/04/18/lower-budge-drive-lost-to-slide-overnight/
Butrflynet
 
  1  
Reply Mon 21 Apr, 2014 01:44 pm
@parados,
That's the same futile thing they tried to do in Washington. Mother Nature has a way of reminding humans of who is really in charge on planet earth.
0 Replies
 
farmerman
 
  1  
Reply Mon 21 Apr, 2014 02:40 pm
@Butrflynet,
I don't think anyone is linking the "Suprvolcano" caldera with this. the snake river plain isat its eastern terminus right in this area and is always moving like a spreading center. These landslides, s devastating as they are, are mere minor earth responses to sinking, erosion, transcurrent movement etc.
I don't think anyone mentioned the caldera. That is so well monitored that they can detect 0.001 foot of movement over miles. Anyway, the caldera has been very queit over the last several years
neologist
 
  1  
Reply Tue 22 Apr, 2014 06:14 pm
President Obama visited the site today and gave a speech. As much as I am unimpressed with politicians in general, I feel he was truly moved when he saw the area destruction.

He should fire one of his aides, though. Whoever counseled him on the name of the town. Its Oso; pronounced Oh So, not Ah So. Even the liberal local news folk were befuzzled by it, calling it a colossal gaffe.
0 Replies
 
neologist
 
  1  
Reply Wed 23 Jul, 2014 10:01 am
@farmerman,
Slide reports indicate no single cause.
They should have asked you
http://blog.seattlepi.com/bigscience/2014/07/22/new-oso-landslide-investigation-details-how-the-hill-collapsed/
farmerman
 
  1  
Reply Wed 23 Jul, 2014 10:48 am
@neologist,
Whats sad is that, Im sure there will be HUUUGE fights on the engineering forensics when all the insurance claims come due. Ill bet there are several sizaeable claims that have already been denied and will go to court.

Ive left severe instructions in my taff meetings that we WILL not take on work for any side in thi. ANY forensic engineer or geologist who does is merely a hired "Gun" who is ignoring the rules of the road in EIL insurance claims.

When evidence abounds, one should pay attention to it. Ive seen some scary photos where huge developments and urban areas are being built right over old "Sand Boil" areas of the Reelfoot area in
Tennessee.Shouldnt play Russian Roulette with a .45 automatic.
JTT
 
  -3  
Reply Wed 23 Jul, 2014 12:11 pm
@farmerman,
Quote:
When evidence abounds, one should pay attention to it.


Y'all can't open your mouths without screaming, "I'm a grand hypocrite. I'm USian!!"
0 Replies
 
neologist
 
  3  
Reply Tue 2 Jun, 2015 12:20 pm
Update:
http://www.seattletimes.com/seattle-news/laser-map-gave-clue-to-oso-slides-ferocity/
0 Replies
 
 

 
Copyright © 2019 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.03 seconds on 06/17/2019 at 07:10:03