Posted on April 9, 2021 by Hokkaido NewsQuake info: Light mag. 4.1 earthquake – North Pacific Ocean, 90 km east of Shikotan, Sakhalin Oblast, Russia, on Apr 10, 2021 02:32:38.36 – VolcanoDiscovery Quake info: Light mag. 4.1 earthquake – North Pacific Ocean, 90 km east of Shikotan, Sakhalin Oblast, Russia, on Apr 10, 2021 02:32:38.36 VolcanoDiscovery