Posted on December 30, 2020 by Hokkaido NewsQuake info: Mag. 3.9 earthquake – Japan Sea, 37 km southwest of Yagishiri Island, Hokkaido, Japan, on Wednesday, 30 Dec 11:15 pm (GMT +11) – VolcanoDiscovery Quake info: Mag. 3.9 earthquake – Japan Sea, 37 km southwest of Yagishiri Island, Hokkaido, Japan, on Wednesday, 30 Dec 11:15 pm (GMT +11) VolcanoDiscovery