A bit ago, I heard an unusual rumble out on the street. It was like a low-flying aircraft out of Logan but not quite the right pitch. I looked up out of the window to see if there was a big truck rumbling down the street, but it was empty.

Turns out it was an earthquake: earthquake.usgs.gov/earthquake…

(When I first clicked that link, the felt effects were marked, but I don't know how to bring that back. Maybe this is more descriptive: earthquake.usgs.gov/earthquake…)