[2] Near the Geiyo region, a Ms 7.8 earthquake occurred in June 1905,[3] which was an intraslab event within the subducting Philippine Sea plate.

[4] The United States Geological Survey (USGS) gave the earthquake a magnitude of Mw 6.8, while the Japan Meteorological Agency (JMA) reported the magnitude at MJMA 6.7, with its epicenter located near the island of Kurahashi-jima in Kure, Hiroshima Prefecture.

This earthquake is a normal faulting intraslab event within the subducting Philippine Sea plate.

[10] Two people were killed; one in Kure, Hiroshima due to a wall collapse and other in Matsuyama, Ehime after being hit by falling roof tiles.

Additionally, 40,739 waterways, 1,209 cultural and educational facilities, 787 roads, 149 harbors, 97 hospitals, 9 bridges, 8 public buildings and 71 other structures were also affected.