Posted on November 23, 2021 by Hokkaido NewsQuake info: Minor mag. 3.1 earthquake – Sakhalin Oblast, Russia, 37 km northeast of Shibetsu, Hokkaido, Japan, on Tuesday, Nov 23, 2021 12:40 am (GMT +10) – VolcanoDiscovery Quake info: Minor mag. 3.1 earthquake – Sakhalin Oblast, Russia, 37 km northeast of Shibetsu, Hokkaido, Japan, on Tuesday, Nov 23, 2021 12:40 am (GMT +10) VolcanoDiscovery