A major earthquake with a magnitude of approximately 7.5 struck off the coast of Japan on Sunday, prompting authorities to issue tsunami warnings for coastal communities and urging residents to evacuate to higher ground. The seismic event was widely felt across the region, triggering an immediate emergency response from Japanese disaster management officials.

Tsunami alerts were activated for areas along Japan's coastline following the quake, with officials warning that dangerous waves could arrive within minutes of the tremor. Residents in low-lying coastal zones were directed to evacuate immediately, following established disaster protocols developed in the wake of previous major seismic events in the country.

Japan sits atop the Pacific Ring of Fire and experiences frequent seismic activity, making it one of the most earthquake-prone nations in the world. The country has invested heavily in early-warning systems and coastal infrastructure since the devastating 2011 Tohoku earthquake and tsunami, which caused a catastrophic nuclear disaster at the Fukushima Daiichi plant. Emergency response protocols were activated swiftly following Sunday's event.

Details on damage, injuries, and the precise epicenter of the earthquake were still emerging in the immediate aftermath of the event. Authorities continued to monitor conditions and assess the potential scale of any tsunami waves as the situation developed throughout the day.