SOCIAL MEDIA ROLE IN DISASTERS > JAPAN Spread of information via Twitter, post Great Eastern Japan Earthquake 11MAR2011

[This should answer the question 'To Tweet or not to Tweet during a disaster...", an obvious profound answer displayed in video...Happy Tweeting!] 

This video displays worldwide retweets of Tweets originating in Japan for one hour after the earthquake. Senders’ original Tweets are shown in red; Tweets retweeted by their followers in the hour after the event are displayed in green.

credit: @miguelrios