Updated

Two earthquakes of magnitude 4.7 and 4.6 struck Japan on 28 October 2026, with no damage, injuries or deaths reported. The magnitude 4.7 quake struck at 18:32 UTC at a depth of about 41 km, and GDACS estimated 25.4 million people live within 100 km of its epicenter. The magnitude 4.6 quake struck at 23:13 UTC at a depth of about 130 km, with an estimated 690 thousand people within 100 km. Both were issued as GDACS green alerts, the lowest tier of its system, and neither alert reports damage or casualties.