Open AccessA Statistical Analysis of Japanese Inter-Prefectural Migration After Disasters
Author(s) -
Makoto Okumura,
Wataru Ito
Publication year - 2018
Publication title -
journal of disaster research
Language(s) - English
Resource type - Journals
eISSN - 1883-8030
pISSN - 1881-2473
DOI - 10.20965/jdr.2018.p1072
Subject(s) - emigration , immigration , statistical analysis , natural disaster , geography , statistics , mathematics , meteorology , archaeology
This study conducts a statistical analysis of the impact of disasters on inter-prefectural migration in Japan over 41 years (1973–2013), and estimates the change in emigration and immigration after disasters of different magnitudes. The result reveals that emigration decreases and immigration increases after a modest-sized disaster, while the opposite is observed following a huge disaster. It also shows a disaster threshold requiring external assistance for recovery and quick decision-making afterwards.