Posted on 11/30/2015 1:51:42 AM PST by Crazieman
No epicenter or magnitude yet. Just felt it, was a pretty good shake for me in Wichita, Kansas.
Probably a 4.5, my guess.
In before Jerry Lee Lewis.....
More like in before Californians that don’t have any idea what its like to live with weekly 4.0s.
Nice shake in Tulsa.
And before Californians who have no idea of the difference between a west coast 4.0 and a central US 4.0. Or an east coast 4.0 for that matter.
It shook the house pretty good in Tulsa, OK.
It was the first one to ever wake me up - Sand Springs/Prattville, just west of Tulsa.
This one was a noisy one for me. Most of them are “I think we’re having one.”
There was no think about this one. All the rattling and creaking was pretty nuts. I think the 4.5 won’t stand, will probably go to 4.8 to jive with Europe.
That would be out in the sand hills, near the Great Salt Plains...
>>And before Californians who have no idea of the difference between a west coast 4.0 and a central US 4.0. Or an east coast 4.0 for that matter.<<
An east coast 4.0 is a California 2.5.
Been liking your tagline for awhile.
It’s not east coast, it’s Midwest.
Having experienced many many 4-5’s in the Midwest and a 7.0 south of Seattle, I think they were similar except the 7.0 lasted longer.
4.5 was more or less a weekly event in Japan.
The slow, back and forth quakes were no worry.
The sudden, up and down moves would break windows...
The difference is that in Japan, they have building codes that match the earthquake activity. In Oklahoma, that’s not true, since these hundreds of earthquakes were not around (in Oklahoma) prior to 2008, in recorded history. The number of earthquakes basically EXPLODED after 2008 and it hasn’t stopped increasing (in the number count of earthquakes, every year since then!
There were no codes in place during the rebuilding after 1945. My folks were stationed there in 1951-1961 with the US Army.
You were close, they just updated the magnitude to 4.7.
http://www.nytimes.com/2011/03/12/world/asia/12codes.html
Hidden inside the skeletons of high-rise towers, extra steel bracing, giant rubber pads and embedded hydraulic shock absorbers make modern Japanese buildings among the sturdiest in the world during a major earthquake. And all along the Japanese coast, tsunami warning signs, towering seawalls and well-marked escape routes offer some protection from walls of water.
In Japan, where earthquakes are far more common than they are in the United States, the building codes have long been much more stringent on specific matters like how much a building may sway during a quake.
Japan has gone much further than the United States in outfitting new buildings with advanced devices called base isolation pads and energy dissipation units to dampen the ground’s shaking during an earthquake.
The isolation devices are essentially giant rubber-and-steel pads that are installed at the very bottom of the excavation for a building, which then simply sits on top of the pads. The dissipation units are built into a sound building’s structural skeleton. They are hydraulic cylinders that elongate and contract as the building sways, sapping the motion of energy.
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