Abstract
This study conducted three basic studies on evacuation on foot from lava flows during the
Eruption of Mt. Fuji: 1) estimation of the population exposed to lava flows over time after the
eruption, 2) development of a safety assessment method for evacuation on foot from lava flows,
and 3) evacuation simulation based on the developed assessment method. Based on the results
of these analyses, measures for safe evacuation on foot from the lava flow were discussed. The
study showed that the maximum number of people exposed to the lava flow was about 2,000
3 hours after the eruption. The maximum number of people who had difficulty evacuating was
about 800 when the evacuation start time was 75 minutes. On the other hand, the number of
people who had trouble evacuating was smaller when evacuation was 45 minutes than when the
start time was 75 minutes. This indicates that shortening the evacuation start time is essential for
safe evacuation on foot from the lava flow.
