Yeah this was another notable fore-shock situation - recently the east coast fault line has been particularly active

Meanwhile, aftershocks are continuing at a ridiculous rate. Even now they are getting quakes every 30 minutes or so - it's a record apparently in terms of the number of quakes in a sequence

Interestingly there was a super moon recently - which feeds into the theory that extra slosh of king tides can trigger quakes in an area that is already on the edge