occurred on November 25, 1930, at 16:05 local time, and the largest aftershock occurred on March 7, 1931, at 01:53 local time. Earthquake light A prominent earthquake light was observed. It could be observed over a large area, including the coast of Suruga Bay, the Izu Peninsula, the coast of Sagami Bay, Sagami River Valley, the coast of Tokyo Bay, and the Bōsō Peninsula. The earthquake light was reported to have appeared before the earthquake occurred and continued for at least an hour. See also List of earthquakes in 1930 List of earthquakes in Japan References External links North Izu earthquake, 1930 1930 in Japan November 1930 events Earthquakes of the Showa period Earthquakes in the Empire of Japan