Appointed as ambassador to the Empire of Russia just before the Bolshevik Revolution , Uchida returned to Japan to serve as Foreign Minister again from 1918 to 1923 under the Hara , Takahashi , and Katō administrations . He served as acting Prime Minister of Japan twice – once after the assassination of Prime Minister Hara , and again after the sudden death of Prime Minister Katō , immediately before the Great Kantō earthquake
Great Kantō earthquake
1923 Great Kantō earthquake
Uchida Kōsai