A magnitude 5.9 earthquake struck the Amami Islands in Japan's Kagoshima Prefecture on May 20, 2026, at 11:46 a.m. local time (10:46 a.m. Singapore time) [1, 2].
The quake's epicenter was located off the coast of Okinawa's main island at a depth of 50 kilometers [1, 2]. The earthquake registered a seismic intensity of upper 5, or strong 5, on the Japanese scale in Yoron town at the southern tip of Kagoshima Prefecture [1, 2].
No tsunami warning or threat was issued following the event, according to local authorities [1, 2].
The earthquake was the only significant seismic event reported on that date in the region.