A powerful magnitude 7.1 earthquake struck near Uki in Japan's Kumamoto region on the southern island of Kyushu, followed shortly afterwards by a substantial magnitude 6.8 aftershock near the neighbouring city of Uto. Both tremors originated at a shallow depth of around 10 kilometres, a combination that tends to produce stronger surface shaking and raises concerns over building damage, landslides and possible tsunami activity along the coast. The region has a history of destructive earthquakes, including the deadly 2016 Kumamoto quakes, making this latest activity particularly concerning for local authorities and residents.

Japanese geological and meteorological authorities have issued detailed assessments of shaking intensity and tsunami risk to guide emergency response and public safety measures. The close timing and similar shallow depth of the two large tremors point to concentrated seismic activity in the area, consistent with the region's known tectonic instability. As this remains a developing story, further details on casualties, damage and any tsunami warnings are expected as authorities continue their assessment.