Published: Apr 21, 2026, 08:45 IST | Updated: Apr 21, 2026, 08:45 IST
A powerful 7.7-magnitude earthquake has struck Japan, prompting authorities to issue alerts for a potential mega-quake risk along affected regions. Emergency services are closely monitoring seismic activity as aftershocks continue to shake parts of the country. Tsunami warnings and evacuation advisories have been considered in coastal areas as Japan remains on high alert.