The Great East Japan Earthquake occurred in March
11, 2011, and measured magnitude 8.8. It occurred 130 km east-southeast of Oshika Peninsula, Miyagi Prefecture, and the focal point was 24 km below the surface. The magnitude was larger than the 7.9 of the Great Kanto Earthquake of 1923, the most destructive natural disaster in Japan's history. Friday's quake followed a magnitude 5.8 quake that hit China on Thursday, killing at least 24 people and injuring more than 240.