23:32 JST 29 Feb 2012 35.2N 141.5E 20 km 5.8 Chiba-ken Toho-oki
Japan Meteorological Agency - Official Japan Earthquake Site (Bookmark THEIR site in case of emergency!):
http://www.jma.go.jp/en/quake/ Map:
http://www.jma.go.jp/en/quake/3/20120229233754391-292332.html