Twitter had 100 million active users logging in at least once a month and 50 million active users every day. In an article published on January 6, 2012, Twitter was confirmed to be the biggest social media network in Japan, with Facebook following closely in second. comScore confirmed this, stating that Japan was the only country in the world where Twitter leads Facebook. On March 31, 2014, Twitter announced there were 255 million monthly active users (MAUs) and 198 million mobile MAUs. In 2013, there were over 100 million users actively using Twitter daily and about 500 million Tweets every day,
Twitter usage alerts and updates regarding the February 2009 bushfires. The then Prime Minister of Australia Kevin Rudd used his Twitter account to send out information on the fires, how to donate money and blood, and where to seek emergency help. In April 2009, public health departments used Twitter to provide updates on H1N1 cases. Twitter was also massively used in 2014 Balkan floods. Its efficiency and speed was considered to be "very useful" in exchanging information about flood victims and missing persons. During the CBC News television coverage of the Canadian federal election on October 14, 2008, the CBC cited tweets