南海地震と井戸の水位低下の関係解明 https://rio.st/2003/10/06/%e5%8d%97%e6%b5%b7%e5%9c%b0%e9%9c%87%e3%81%a8%e4%ba%95%e6%88%b8%e3%81%ae%e6%b0%b4%e4%bd%8d%e4%bd%8e%e4%b8%8b%e3%81%ae%e9%96%a2%e4%bf%82%e8%a7%a3%e6%98%8e/