National Diet Library Great East Japan Earthquake Archive(HINAGIKU) was officially published on March 7th, 2013. HINAGIKU is a portal site which enables integrated search of records and reports of the earthquake disaster by public institutions, private organizations and media, and of research products by universities, academic societies and research institutes.
 
The "HINAGIKU", another name of the NDL Great East Japan Earthquake Archive, is a partial acronym of the "Hybrid Infrastructure for National Archive of the Great East Japan Earthquake and Innovative Knowledge Utilization." In the language of Flowers, hinagiku (daisy) - "future", "hope" and "sympathy" - includes the aim of the project supporting the earthquake recovery.