the great kantō earthquake of 1923 caused severe damage to yokosuka, including the naval base which lost two years' operations of oil supplies. the city continued to expand in 1933 with the annexation of neighboring kinugasa village and taura town in 1933 and kurihama village in 1937. in 1943, the city also annexed the neighboring towns and villages of uraga, kitashimoura, okusu, nagai and takeyama, as well as zushi.