About the Usefulness of Twitter at the Time of the Disaster

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  • 災害時におけるTwitterの有用性について
  • 災害時におけるTwitterの有用性について : 2011年9月の台風12号による豪雨災害を例に
  • サイガイジ ニ オケル Twitter ノ ユウヨウセイ ニ ツイテ : 2011ネン 9ガツ ノ タイフウ 12ゴウ ニ ヨル ゴウウ サイガイ オ レイ ニ
  • -A heavy rain disaster by typhoon 12 of September, 2011 for an example
  • ―2011年9月の台風12号による豪雨災害を例に

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Abstract

<p>It is examined by this paper whether Twitter is effective as a tool which disseminates the information about a disaster. By the East Japan great earthquake disaster that occurred on March 11, 2011, it was pointed out as a source of the various false rumors about the nuclear power plant. In this paper, the heavy rain disaster by the typhoon No. 12 which passed through Kansai from September 2 to 4, 2011 had been taken as an example. In Totsukawa-mura, Nara, the whole village stood alone for a while, and electricity, a telephone, every lifeline including the water service did not function. The news by media ran into difficulties not to be able to enter the village because it was difficult to know the situation. It was Twitter that was then useful to disaster information dissemination. Much information was sent for an urgent account made for the disaster. Furthermore, the person who arranged the information that gathered on a map in a mass appeared. The appearance of the disaster situation of Totsukawa-mura became clear gradually. Twitter is shown to have taken an important role at the disaster by this example. Furthermore, as a result of having examined reliability and spread power, when there is little information, it indicates that Twitter is very useful.</p>

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