The Great Hinamizawa Disaster (雛見沢大災害, Hinamizawa Daisaigai), or simply shortened to GHD, refers to a tragic event in Higurashi no Naku Koro ni that ultimately destroys all of Hinamizawa in most of the arcs. This disaster always occurs if Rika Furude has been killed by Miyo Takano's hands, which is first encountered in Tatarigoroshi-hen. Of course, it can be noted that the disaster does not occur in some arcs if Rika has been killed by someone else (such as Shion Sonozaki in Watanagashi-hen).