precision notes
The following URLs were used to find the coordinates.
http://www6.ocn.ne.jp/~gero3p/files/jisa/fukui.html (for Fukui Prefecture)
http://www6.ocn.ne.jp/~gero3p/files/jisa/isikawa.html (for Ishikawa Prefecture)
The unit of Magnitude is 'MJ', which is the local magnitude defined and calculated by Japan Meteorological Agency (JMA).