Japan

Former Prime Minister Yukio Hatoyama was the first Japanese government leader to join Twitter in December 2009, but it was the devastating earthquake and tsunami of 11 March 2011 that made the government embrace Twitter for effective crisis communications.

First tweet

First tweet

Translation: In addition to the official account for natural disasters, this account sends updates on a daily basis for the Prime Minister's Office.

First tweet

First tweet

Translation: Official Twitter residence to the website for natural disaster warnings. http://bit.ly/i5vpob