Posted on October 17, 2021 by Hokkaido NewsQuake info: Minor mag. 3.9 earthquake – Sea of Okhotsk, Japan, on Sunday, Oct 17, 2021 5:22 pm (GMT +10) – VolcanoDiscovery Quake info: Minor mag. 3.9 earthquake – Sea of Okhotsk, Japan, on Sunday, Oct 17, 2021 5:22 pm (GMT +10) VolcanoDiscovery