Posted on September 16, 2021 by Hokkaido NewsQuake info: Light mag. 4.0 earthquake – North Pacific Ocean, 139 km southeast of Kuril’sk, Sakhalin Oblast, Russia, on Thursday, Sep 16, 2021 4:56 pm (GMT +10) – VolcanoDiscovery Quake info: Light mag. 4.0 earthquake – North Pacific Ocean, 139 km southeast of Kuril’sk, Sakhalin Oblast, Russia, on Thursday, Sep 16, 2021 4:56 pm (GMT +10) VolcanoDiscovery