Ay, nakakakuha ako ng concern mo, honestly, the effects of earthquakes sa babies really depend on kung gaano kagalos at matagal, pero generally, ang sudden movements at loud sounds lang ang nakakastartle sa kanila, hindi directly harmful sa body niya. Best thing is to protect her physically, hold her securely, stay away from falling objects, at mag-stay ka sa safe area like under a sturdy table or doorframe. If your baby seems really distressed after or may unusual symptoms, it's better to check with your pedia just to be sure lahat's okay, pero sa karamihan ng cases naman okay lang ang babies after earthquakes, specially kung protected sila properly.