Abstract
A huge earthquake centered in Nankai Trough is expected. Tsunami preparedness is required in regions where residents have no tsunami experience. This questionnaire survey of a coastal area of Okayama city, a region with no tsunami experience, revealed properties of individual preparation and their effects on evacuation activity. Results show the following. 1) Five preparation types were identified based on nine tsunami-preparedness items. If a huge Nankai Trough earthquake occurs, 2) an "All-round type" comprising mostly households of old people and couples will tend to evacuate by foot. "Non-preparation type" comprising mostly single-person households will tend to evacuate by car. 3) Evacuation activity of "Knowledgeable type" resembles that of "Non-prepared type".
