The graphic in this article doesn't look good for the sinkhole!
From Live Science - Watch Costa Rica Quake Vibrations Hit US
http://www.livescience.com/22952-costa-rica-quake-animation.html
"A new animation shows the shockwave from the 7.6 magnitude earthquake that struck Costa Rica this morning (Sept. 5) arriving and reverberating through the ground beneath the United States."
This may have an effect on nuke plants where the dots are!
