About TAKAHASHI JIRO
About 愛媛大学教育学部紀要
About Ehime prefecture
About natural landscape
About natural environment
About Median Tectonic Line
About stratum
About geology (geological feature)
About geological structure
About plate tectonics
About natural disaster
About large earthquake
About science education
About accretionary prism
About History
About education
About disaster history
About secondary science education
About Science and engineering education
About Natural disasters
About 災害