Anyone feel the earthquake tremor last night?

[charky]

There was a 5.2 magnitude earthquake at 4:30 am last night in Illinois.

We have a large LCD TV suspended from the ceiling at our workplace at 11th/169. It started to gently sway last night at 4:37 am. Pretty creepy.

[AngieB]

Wow. That's pretty weird. Did you know why at the time or did you think it was a ghost? []

[cannon_fodder]

Tons of neat stuff on it.  Not sure if it had the swinging effect in Tulsa or not (no reported effect to USGS, but as a pendulum it might have been at the right frequency?):
http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/us2008qza6.php#maps

And your clock is off, the quake reached 880 Kilometers away (~550 miles) at about 9:40, as shown a-here-a:

or any of the 880KM sites here:
http://www.iris.edu/cgi-bin/wilberII_EnO_page4.pl?evname=20080418_093656.7.spyder

Here is TONS of information:
http://www.iris.edu/quakes/quakes.htm

Not saying the TV wasn't swaying nor that it wasn't caused by the quake because I don't know.    Tons of cool information out there on quakes, but I can't find something that says whether it could make something sway in Oklahoma or not.  Strange deal though... and not as rare as you might think - just usually in the 3 range, not the 4 range.

[cks511]

http://www.hsv.com/genlintr/newmadrd/

The New Madrid Fault Zone is a very interesting piece of history and concern for future quakes.  FYI.  Legend has it that the 1811 quake precipitated the War of 1812, it's in the 'Panther Across the Sky Article' in this link.

[charky]

quote:Originally posted by cannon_fodder

Tons of neat stuff on it.  Not sure if it had the swinging effect in Tulsa or not (no reported effect to USGS, but as a pendulum it might have been at the right frequency?):
http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/us2008qza6.php#maps

And your clock is off, the quake reached 880 Kilometers away (~550 miles) at about 9:40, as shown a-here-a:

or any of the 880KM sites here:
http://www.iris.edu/cgi-bin/wilberII_EnO_page4.pl?evname=20080418_093656.7.spyder

Here is TONS of information:
http://www.iris.edu/quakes/quakes.htm

Not saying the TV wasn't swaying nor that it wasn't caused by the quake because I don't know.    Tons of cool information out there on quakes, but I can't find something that says whether it could make something sway in Oklahoma or not.  Strange deal though... and not as rare as you might think - just usually in the 3 range, not the 4 range.

Cool stuff.

4:37 was the time I recall. Actual time of the earthquake in Illinois was 4:37 (or 9:37 UTC time).

The swaying TV occurred at the National Weather Service office in Tulsa. Interesting thing is that we keep an online chat going with neighboring NWS offices...and we got word right at 4:37 am from the Paducah, KY NWS office that they experienced an earthquake. Shortly after that was when we observed our 52" LCD monitor gently swaying.

Maybe these graveyard shifts are getting to me!

[cannon_fodder]

lol, like I said - I really don't know.  But as I understand it the distance should have prevented significant swaying.  Then again, a large pendulum (TV hanging from ceiling) could amplify the vibrations.

Cool either way.  Your either going mad, or "saw"  the earthquake.