A magnitude 6.6 earthquake struck off the coast of Miyazaki Prefecture in southern Japan on Monday evening, briefly triggering a tsunami advisory that was later lifted. The quake, initially estimated at 6.9, was later revised. It hit at 9:19 p.m. in the Hyuganada Sea, with a depth of 36 km, causing minor damage such as a shattered window and knocked-over bottles in Miyazaki City. Small waves were observed but no significant harm was reported.

Train services in the area were briefly suspended, while the Sendai nuclear plant reported no abnormalities. Experts suggested the quake occurred near tectonic plate boundaries and could indicate further tremors, though not a major risk for a large-scale earthquake like the Nankai Trough mega-quake.

Social media reactions were widespread, with many expressing concern for Japan’ activity. Despite the lifted advisory, authorities urged caution, especially for those at sea, following recent years of significant quakes, including a deadly 7.5 magnitude earthquake in 2024 and the devastating 2011 Tohoku Earthquake.