Large-scale cooperative dissemination of governmental information in emergency - An experiment and future strategies

Katsuhiro Horiba, Keiko Okawa, Jun Murai

Research output: Contribution to journalArticlepeer-review


On the 11th of March, 2011, a massive earthquake hit the northeast region of Japan. The government of Japan needed to publish information regarding the earthquake and its influences. However, their capacity of Web services overflowed. They called the industry and academia for help for providing stable information service to the people. Industry and academia formed a team to answer the call and named themselves the "EQ project". This paper describes how the EQ Project was organized and operated, and gives analyses of the statistics. An academic organization took the lead in the EQ Project. Ten organizations which consisted of commercial IT industry and academics specialized in Internet technology, were participating in the EQ Project and they structured the three clusters based on their relationships and technological approach. In WIDE Cluster, one of three clusters in the structure of EQ, the peak number of file accesses per day was over 90 thousand, the mobile browsers was 3.4% and foreign languages (translated contents) were referred 35%. We have also discussed the future information distribution strategies in emergency situation based on the experiences of the EQ Project, and proposed nine suggestions to the MEXT as a future strategy.

Original languageEnglish
Pages (from-to)2191-2199
Number of pages9
JournalIEICE Transactions on Communications
Issue number7
Publication statusPublished - 2012 Jul


  • Governmental information in emergency

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


Dive into the research topics of 'Large-scale cooperative dissemination of governmental information in emergency - An experiment and future strategies'. Together they form a unique fingerprint.

Cite this