Many of us watched in horror last night as a tsunami hit Japan, after the country was suffered a devastating earthquake. By early morning, Google launched a tool to help people find missing friends and relatives.

[ad#Google Adsense 300×250 in story]The “Person Finder: 2011 Japan Earthquake” is available in both Japanese and English. It offers users two options: I’m looking for someone or I have information about someone.

According to reports on CNN, the 8.9 magnitude earthquake is the most powerful to hit Japan in 100 years. The epicenter was about 231 miles away from Tokyo.

Tsunami warnings have been issued for more than 50 countries including Canada, the Unites States, Russia, Indonesia, Guatemala, El Salvador and Costa Rica.