A 7.4 magnitude earthquake struck northern Japan, prompting a tsunami warning for waves up to three meters. The quake occurred off Iwate Prefecture and was felt in Tokyo. Eyewitnesses reported strong tremors, and the government urged immediate evacuation from coastal areas. Prime Minister Sanae Takaichi announced a crisis management team to assess potential casualties and damage. Japan is seismically active, experiencing thousands of earthquakes annually, with past events causing significant destruction.