Earthquakes associated with the Sagami Trough are a threat to Tokyo and the Kanto Region because of the proximity to a population center (with over 36 million living in Tokyo's metro area, with a total of 43 million living in the Kanto Region) and the magnitude the Sagami Trough can create.
Lake Sagami | Sagami Bay | Sagami Province | Sagami province | Sagami General Depot | Nankai Trough | Langmuir–Blodgett trough | Battle of the Trough |