Twitter and Natural Disasters Essay

2891 Words 12 Pages
1 Introduction 
Online social media (OSM) are Internet sites for people to interact freely, sharing their thoughts and engaging in a conversation, using words, audio, pictures and videos. These services allow individuals, organizations and governments to create, exchange content and spreading information with large number of people without geographical constraints. It appear in many forms including blogs and microblogs, wikis, social networks, virtual words, forums and message boards, media-sharing sites and social bookmarking. There are numbers of well-known sites such as Facebook, Twitter, YouTube, Wikipedia, Reddit, Flickr, Instagram and many more.
On March 11, 2011, the most powerful earthquake hit Tohoku region with magnitude 9.0,
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In order to have a better understanding on one behaviour of information dissemination using Twitter, this paper discuss the result of one action after they saw retweet messages in their Twitter “home”. The following sections are background of the study, research method, results and discussions and finally the conclusion.
2 Background of the study
2.1 Online Social Media trends in disaster
Disaster definition by The United Nations Office for Disaster Risk Reduction (UNISDR) is “A serious disruption of the functioning of a community or a society involving widespread human, material, economic or environmental losses and impacts, which exceeds the ability of the affected community or society to cope using its own resources” [5]. The Great East Japan Earthquake in 2011 created havoc and panic situation to people not only in Japan, but the effect of the earthquake were felt around the world. Popularity of social media usage rose rapidly during and after this disaster, and therefore, it captures a lot of research interest on the use of OSM in disaster. It was one of the user’s choice of information channel during disaster [3][6].
The emergence of OSM sites promotes ordinary user to become a “citizen reporter” and everyone can post what they want to share in their own site. On 2005, the 7/7 bombings in London turn the ideas of citizen reporter where user use Wikipedia and Flickr to share news about the man-made disaster [6]. It continues on 2009 where

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