A magnitude 6.1 earthquake struck off the coast of Kushiro, on Japan’s northern island of Hokkaido, Saturday, May 31, at 14:07 local time, the Japan Meteorological Agency (JMA) reported.
The earthquake occurred at a depth of 20 km (12 miles). No tsunami warning was issued.
The main tremor was followed by several aftershocks: a magnitude 4.4 at 14:19 near Kushiro, a 3.5 off the coast of Shikoku at 16:45, and a 4.7 again near Kushiro at 17:07.
There were no immediate reports of damage or injuries.
Authorities remain vigilant, monitoring for further seismic activity.
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