Google has launched Person Finder in response to the Japan Earthquake / Tsunami. Official reports a magnitude 8.8 earthquake hit Japan, approximately 400km away from Tokyo at a depth of 20 miles in the Pacific Ocean. The Japan earthquake has led to subsequent tsunami waves that are hitting the Japanese coastline even now. Widespread damage to land and property is being reported, with no human casualties.
Google had launched a similar Person Finder app to locate missing people during the Haiti and Christchurch earthquakes.
The Google Person Finder for Japan Earthquake / Tsunami currently lets you report the wherabouts of missing people affected by the earthquake and tsunami in Japan, it subsequently lets you search through records as well.