Although the Eagles home stadium, Kleenex Stadium, was undamaged, but local authorities were worried that further aftershocks would disrupt transportation to and from the game.
Sunday's game will likely be postponed. The games will be made up some time. Even if they don't affect the standings.
Back on May 26, 2003, a game I attended in Chiba was delayed for a minute as a strong earthquake (with an epicenter far north of where I was) rolled through the stadium. It seemed only to be felt by the spectators, not the players or umpires.