As part of Disaster Prevention Day observances the government held a comprehensive disaster-prevention drill based on the assumption of a major earthquake in the Tokai region. At 8:00 A.M. the Director General of the Meteorological Agency warned Prime Minister Yoshiro Mori of the imminent likelihood of a major earthquake in the Tokai region. The Prime Minister immediately convened a meeting of relevant Cabinet ministers and circulated documents to all Cabinet ministers for approval. At about 8:30 he issued an earthquake warning and announced the establishment of an "earthquake disaster warning headquarters," and 10 minutes later he convened the first meeting of the headquarters, with all Cabinet members in attendance, in the Crisis Management Center in the Prime Minister's Official Residence. That afternoon the Prime Minister visited the site of a combined disaster prevention drill conducted by the governments of Tokyo and six surrounding prefectures in Hiratsuka City, Kanagawa Prefecture, on the assumption of a major earthquake directly beneath the southern Kanto region. After watching a disaster-control drill, he addressed the closing ceremony.