About The Tohoku Earthquake: The 2011 Tohoku earthquake, magnitude 9.1, was the strongest ever in Japan. It happened where the Pacific plate dives beneath Japan. It shifted the main island of Honshu several metres to the east. It nudged the whole island of Honshu a few metres eastward

Location: Under the sea off northeast Japan · Country: Japan · Year: It struck in 2011 · Magnitude: Magnitude 9.1 the strongest ever in Japan · Plate Boundary: Where the Pacific plate dives beneath Japan · Tsunami: It sent a tsunami racing toward the coast · Notable Feature: Japan has some of the best earthquake sensors on Earth · World Rank: The most powerful earthquake in Japan's history