Facebook maps status updates on Japanese earthquake
As news of the Japanese earthquake and tsunami spread around the world, it was reflected in the status updates of Facebook users.
For the first time the social networking site has plotted user updates by place and time.
The site collated information on 4.5m status updates from 3.8m users.
It tracked the words 'Japan', 'earthquake' and 'tsunami'.
Times shown are in US Pacific time which is 8 hours behind GMT and 17 hours behind Japan.
Video courtesy of Facebook.