I'm definitely not used to these things, NJ doesn't generally experience them. There was one bout 10 or 12 years ago.Same in PA. Crazy but I've been in worse. But I've never experienced anything like this in my area.
And just to see how far we've fallen and where I believe the world is, my first thought was a A-bomb (in NY) and second was an eartquake.
Strange. They're reporting it being felt as far away as Buffalo.I am in Northern NJ. I may be the only one who didn't feel it. I was outside trimming some hedges when it happened. I didn't even know we had an earthquake until my wife came running outside asking what happened. We have had them before in the @.0 - 3.0 range. That is the first 4.8 I can recall.