The 5.8 magnitude earthquake originated in Virginia and shook Washington while also being felt as far north as Rhode Island and New York.
The New Haven Open had to be delayed for more than two hours after stands shook at Yale during the match between former world number one Jelena Jankovic of Serbia and Russia's Elena Vesnina.
The public were evacuated while the stands were checked before being given the all-clear as play resumed.
The earthquake was also felt in New York where world number four Andy Murray was preparing for the US Open.
The Scot said on his Twitter account: "Earthquake at flushing meadows! Weird weird feeling thought I was just dizzy...."
He added: "Earthquake was in washington dc 5.8, was only the after shocks here in new york strange feeling hope everyone is ok in dc."