日本海溝
The 2012 Sanriku earthquake () occurred near the city of Kamaishi, Japan, on December 7. The magnitude 7.3 shock generated a small tsunami, with waves up to 1 m high, that hit Ishinomaki in Miyagi Prefecture. It occurred at a depth of 36 km within the Pacific Plate and was the result of reverse faulting, about east of the Japan Trench.