Earthquake on East Coast interrupts Obama’s golf game.

The epicenter was in Mineral, Virginia. Did you feel it? Send CNN an iReport.

The quake was felt in Philadelphia, Pennsylvania; New York City and on Martha’s Vineyard, Massachusetts, where President Barack Obama is vacationing. Cell phone service has been disrupted in New York City part of which has been evacuated.

Traders in the New York Stock Exchange felt the shaking and shouted to each other, “Keep trading!” CNN’s business correspondent Alison Kosik reported from the floor at 2:20 p.m. E.T.