A tsunami warning in Japan is raising questions. Here's how tsunamis form, why warnings change and what people far from the coast should know.

A three-meter (9.8-foot) tsunami warning was issued for Japan on Monday after a strong 7.4 magnitude earthquake struck off the northeastern coast, according to the Japan Meteorological Agency and the ...

Japanese authorities issued tsunami alerts after a magnitude 7.7 earthquake struck the country's north on April 20, 2026, but footage circulating online showing a neighbourhood engulfed by massive ...

People living on large swathes of Japan’s coastline were urged to evacuate on Monday after a powerful 7.7-magnitude earthquake struck, triggering a tsunami warning. The Japan Meteorological Agency ...

Dozens of earthquakes struck near Japan on Monday following a cluster of seismic activity that rocked the area over the weekend. Today’s set of earthquakes follow a 6.8 magnitude earthquake that ...

An earthquake with a magnitude of 7.4 struck off Japan's northern coast, prompting a temporary tsunami alert across the region.

A strong earthquake and several subsequent tremors rattled northern Japan on Sunday evening, triggering tsunami advisories along the coast, according to the Japan Meteorological Agency. The earthquake ...

A powerful earthquake struck off the northern Japanese coast, and the Japan Meteorological Agency issued a tsunami alert in the region, sending residents to rush over to safer grounds. So far, no ...