The 1911 Kikai Island earthquake occurred on June 15 at 23:26 local time. The epicenter of the earthquake was located near Kikai Island, Japan. It had a magnitude of Ms 8.1. Magnitude 7.9 (mw), 150 km deep, 108 km NW of Naze, Japan — 29.14°N, 128.80°E. June 15, 1911 at 14:25 UTC. Wiki link https://earthquake.usgs.gov/earthquakes/eventpage/iscgem16958149 Data: US Geological Survey (public domain).