Figure 5: An example of an aggregation site, Jishinhelp.com. Jishinhelp.com is a search engine that lists tweets tagged #j_j_helpme (request for help), #anpi (safety information), and #hinan (evacuation information) (Screenshot of jishinhelp.com, 2011). In this way, the different messages with the relevant hashtags were consolidated into some searchable database.
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