A magnitude 2.7 earthquake struck 42 km southeast of Ofunato, Iwate, Japan on Saturday, Oct 31, at 03:29 am GMT+9, per volcanodiscovery.com.
The North Pacific Ocean region near Kesennuma has seen multiple minor quakes in recent days, including a magnitude 3.4 event on Oct 27, according to the same source.
No major damage or casualties were reported from any of these seismic events, which occurred at shallow depths in the ocean floor.