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|mapsize = |caption = |date = |origintime = 11:58:32 JST (UTC+09:00) |duration = 48 sec 4 min |magnitude = 7.9 8.0 8.2〔 首都直下のM7クラスの地震及び相模トラフ沿いのM8クラスの地震等の震源断層モデルと震度分布・津波高等に関する報告書〕 Mw |depth = |location = 〔Usami, Tatsuo『最新版 日本被害地震総覧』 p272.〕 |type = Megathrust |countries affected = Japan |damage = |intensity = XI (''Extreme'') |PGA = |tsunami = Up to in Atami, Shizuoka, Tōkai |landslide = Yes |aftershocks = 6 of 7.0 M or higher |casualties = 105,385 deaths }} The struck the Kantō Plain on the Japanese main island of Honshū at 11:58:44 a.m. JST (2:58:44 UTC) on Saturday, September 1, 1923. Varied accounts indicate the duration of the earthquake was between four and ten minutes. The earthquake had a magnitude of 7.9 on the moment magnitude scale (Mw), with its focus deep beneath Izu Ōshima Island in Sagami Bay. The cause was a rupture of part of the convergent boundary where the Philippine Sea Plate is subducting beneath the Okhotsk Plate along the line of the Sagami Trough. ==Earthquake== This earthquake devastated Tokyo, the port city of Yokohama, and the surrounding prefectures of Chiba, Kanagawa, and Shizuoka, and caused widespread damage throughout the Kantō region. Its force was so great in Kamakura, over from the epicenter, it moved the Great Buddha statue, which weighs about , almost two feet.〔Earthquake Pictorial Edition – Part Two, page 35, The Osaka Mainichi, 1923 (Which can be seen here ().)〕 Estimated casualties totaled about 142,800 deaths, including about 40,000 who went missing and were presumed dead. The damage from this natural disaster was the greatest sustained by prewar Japan. In 1960, the government declared September 1, the anniversary of the quake, as an annual "Disaster Prevention Day". According to the Japanese construction company Kajima Kobori Research's conclusive report of September 2004, 105,385 deaths were confirmed in the 1923 quake. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1923 Great Kantō earthquake」の詳細全文を読む スポンサード リンク
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