No it wasn't an earthquake. A sonic boom was felt in many locations across the tri-state area. The cause? A military jet broke the sound barrier, flying 1,200 mph! Check out the full article here.
But how could people in Connecticut feel tremors from a sonic boom all the way off the coast of Southern New Jersey??
One explanation is a temperature inversion! Instead of sound spreading out in all directions, sometimes it can get trapped close to the ground. This same set up can also lead to poor air quality days, trapping ozone, dirt and pollen near the ground. It can also help radio and TV signals travel farther than usual (also called atmospheric ducting).
Pretty cool, huh? This graphic is an RF original. A masterpiece. I LOVE making graphics. It's my only outlet for using my artistic side these days.