Did You Feel the Earthquake?

The one in Virginia earlier today, that is. We felt some trembles here in Pittsburgh.

Where was the largest recorded earthquake in the continental U.S.? California? Nooooo. New Madrid, MO. Earthquakes there in 1811 and 1812 were so large that sidewalks buckled in Baltimore, church bells rang in Boston, and President James and Dolly Madison thought someone was burglarizing the White House. I wonder if the present White House occupants were worried about intruders....