Sagami Bay

, also known as the Sagami Gulf or Sagami Sea, is an area of the Pacific coastline of the Japanese island of Honshu. The bay is approximately southwest of the capital, Tokyo. 
Underwater canyons extend out of Sagami Bay into the Pacific Ocean in a continuous slope called the "Sagami Trough".
Major cities on the bay include Odawara, Chigasaki, Fujisawa, Hiratsuka, Ito, and Kamakura.
History.
The center of the Great Kantō earthquake in 1923 was in Sagami Bay.