1. Anonym (the Earthquake Research Institute) —Results of re-triangulation in Miyakesima — Bull. Earthq. Res. Inst., vol. 19, p. 544–547, 1941 (in Japanese with English abstract).
2. Asanuma, E. (editor) —Record of the eruption of Miyake-jima in the fifteenth year of Showa era (1940) — Rokuninsha, 338 p., 1942 (in Japanese).
3. Hagiwara, T. —The eruption of Miyake-sima, one of the Seven Izu Islands, in 1940. Part. V. The earthquakes that accompanied the eruption — Bull. Earthq. Res. Inst., vol. 19, p. 325–330, 1941.
4. Honda, T., Kadowaki, T. andMasatsuka, A. —Report on the eruption of Izu-Miyake-jima in July–August, the fifteenth year of Showa (1940) — Quart. Jour. Seismology, vol. 11, p. 277–308, 1940 (in Japanese).
5. Isshiki, N. —The geological sheet map « Miyake-jima », scale 1:L0,000, and its explanatory text — Geological Survey of Japan, 85 p., 1960 (in Japanese with English abstract).