A powerful 7.5-magnitude earthquake off Japan’s northeast coast triggered tsunami warnings, mass evacuations and late-night panic, with at least 30 people injured and 90,000 residents moved to safety. Although the Japan Meteorological Agency later lifted all tsunami alerts after only minor sea surges, officials cautioned that the risk of strong aftershocks remains high, issuing a week-long “megaquake” advisory as infrastructure checks and recovery efforts continued across the affected prefecture

Japan’s post-2011 tsunami recovery includes one of the most ambitious coastal defense systems ever built, combining massive seawalls with large-scale reforestation. The goal is not invincibility, but buying precious evacuation time and reducing wave impact for coastal communities. Hundreds of kilometers of reinforced concrete barriers were constructed along vulnerable shoreline areas, with some walls reaching up to 15.5 meters high. These structures are engineered to withstand immense water pres

The 2011 Tohoku earthquake and tsunami was one of the most powerful and devastating natural disasters in modern history. On March 11, 2011, a massive magnitude 9.0 undersea earthquake struck off the Pacific coast of Japan’s Tohoku region, about 70 kilometers east of the Oshika Peninsula. The quake triggered a colossal tsunami, with waves reaching heights of up to 40 meters (130 feet) in some areas, sweeping across coastal towns and cities within minutes. Entire communities were destroyed, infras