Well, Puterman beat me to it, but here's some info for ya'lls perusal.
reply to post by rokkiroo
Can you say "mountain top removal"?
'Surface mining in the Appalachian Mountains is polluting waterways and killing wildlife'
Via these pics from Mountain Road
in the same counties where quakes happened; 1st one (4.3) originated in Letcher County, 2 subsequent ones trending south west in Perry
County. Per Wikipedia:
Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining that involves the mining of the summit or
summit ridge of a mountain. Entire coal seams are removed from the top of a mountain, hill or ridge by removing the overburden above them, and
replacing the overburden back on the ridge to reflect the approximate original contour of the mountain
Now,to my mind, how stable is the "overburden replaced back on the ridge" is the question of the day!!??
If you enter the USGS GPS co-ordinates into Google maps you'll spy a "surface mine" just north east of the original 4.3 quake. In the map below
the green arrows are the quake's co-ord; the google bulbs popped up w/ the co-ord - (I don't know how to remove them) Scroll the pic bar and you'll
see the GPS co-ord on the map legend.
Now, they've been doing this type of mining for some time now unfortunately (explore google maps in this area -- WoW -especially past the ridge line
to the SE!). And I don't know how old the Sat pics are in Google, could be they've extended the mining area??
So with all that surface mining going on, to my knowledge the blasting doesn't usually pop up as a quake, so I would assume?? these quakes aren't
from blasting, but are the real deal from mother nature, and not so much cause and effect from the surface mining blasting, especially at 19.9
km/12.3 miles deep (the 4.3). But what Puterman said makes sense; kinda like glacial rebounding if you will.
The KY Mine Mapping Information System
seems to be unavailable at this
time (hmm.....how convenient) so can't tell if there are any "underground" coal mines in the immediate vicinity. I'm sure we would have heard
something in the MSM if one had collapsed on miners.
All bets are off though if they've figured out how to frack coal in order to liquify it
What has my eyebrows raised is the sweet little arc connecting the dots on the USGS map: The big one in Guatemala, the one this am in Mobile Bay, the
three in KY today and the ones in Canada. The ones in Canada happen quite often; Guatemala was a biggie; there has been one in Mobile Bay before, but
it is an odd duck; and the Appalachians always have a lot of smallish ones. So is mama Earth feeling her wheaties and flexing her muscles or is she
just stretching her bones before rolling over and going back to sleep or what??
Oh hell, as I was researching this the 7.0 in Myanmar just went off.......Guess mama earth is working on her second bowl of wheaties
Peace to all