Quake rocks Washington area, felt on East Coast

WASHINGTON (AP) — A 5.9 magnitude earthquake centered northwest of Richmond, Va., shook much of Washington, D.C., and was felt as far north as Rhode Island, New York City and Martha's Vineyard, Mass., where President Barack Obama is vacationing. - Quake rocks Washington area, felt on East Coast -- Quake strikes near Washington CNN -- Washington Post -- 5.9 quake hits Va.; Felt along US East Coast CBS