Miyagi Earthquake: Shaking Recorded in Yanaizu as Authorities Confirm No Tsunami Risk
Japan Meteorological Agency data indicates intensity 3 shaking in Yanaizu Town following the early morning tremor on 13 June 2026.

A magnitude 4.4 earthquake struck off the coast of Miyagi Prefecture in the early hours of 13 June 2026, prompting immediate monitoring by Japanese authorities. The Japan Meteorological Agency (JMA) confirmed the tremor occurred at approximately 04:49 local time, with the epicentre situated 70 kilometres beneath the sea floor.
According to data released by the JMA and reported by broadcaster NHK, the strongest shaking was recorded at intensity 3 in Yanaizu Town. The depth of the earthquake and its offshore location contributed to the specific distribution of seismic activity across the region.
Officials confirmed that no tsunami warning was issued following the event. Authorities assessed that there was no concern of a tsunami, allowing residents in coastal areas to avoid the disruption associated with higher-risk seismic events.
This incident occurs against a backdrop of heightened disaster awareness in Japan, following significant weather and seismic activity earlier in the month. In early June, a line-shaped precipitation band caused widespread power outages across Shikoku, affecting approximately 17,000 households, while a separate magnitude 8.2 earthquake triggered tsunami advisories for various coastal regions.
The Miyagi event highlights the continued operation of Japan’s seismic monitoring infrastructure. While distinct from the recent meteorological disasters and major tectonic shifts, the response to this magnitude 4.4 tremor underscores the routine protocols in place for managing regional seismic risks.


