<p>This study is aimed to reveal the sheltering behavior of the apartment residents at the time of an earthquake. We especially focus on the indoor damages caused by the difference of the buildings. We conducted the questionnaire survey to the residents of the apartments in Sendai City who suffered from the 2011 off the Pacific Coast of Tohoku Eatihquake on March 11, 2011. As the result of the survey, it become clear following items; (1) More than 30% of residents took sheltering behavior to outside facilities or the like after the eatihquake, (2) Sheltering behavior of the day is more than 70% and its dominant factor is anxiety for aftershock of the earthquake, (3) More than 20% of residents who did not sheltering considered the behavior, (4) Capacity overflow problem of sheltering facilities would be concemed in areas where many high rise apartment are located in the center of Tokyo.</p>