Abstract
This study explores residents' demand for necessary materials in the aftermath of the Nankai
Trough Earthquake. We also analyze perceptions of periods of isolating conditions and obtaining
relief materials after the Nankai Trough Earthquake and demand differences among characteristics
of gender, age, unnecessary period for medical care service, and unnecessary period for
medication used on a daily basis. The target area is the districts of Kirime area in Inami Town,
Wakayama, Japan, including the tsunami inundation area by the Nankai Trough Megathrust
Earthquake assessment. A questionnaire survey was conducted on residents in the research area
between October 27 and November 28, 2023. The numbers of distribution and valid responses in
this study were 674 and 237 (35.3%). Results indicated that food and toilet-related supplies are
high-demand materials in residents’ perceptions, and the demands for adult diapers and cutlery
in the attribute of high-need for medical care service are greater than those in other attributes.
