History of the Jews in Japan the end of Japan's "closed-door" foreign policy, Jewish families again began to settle in Japan. The first recorded Jewish settlers arrived at Yokohama in 1861. By 1895, this community, which by then consisted of about 50 families, established the first synagogue in Meiji Japan. Part of this community would later move to Kobe after the great Kanto earthquake of 1923. Another early Jewish settlement was established in the 1880s in Nagasaki, a large Japanese port city opened to foreign trade by the Portuguese. This community was larger than the one in Yokohama, consisting of more than 100 families. It was
Sagami Trough 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. The Sagami Trough megathrust generated the 1703 Genroku earthquake, which was the greatest rupture along the trough in the last thousand years, and the 1855 (Ansei) and 1923 (Great Kanto or Taisho) earthquakes. Sagami Trough The also Sagami Trench, Sagami Megathrust, or Sagami Subduction Zone is a long trough, which is the surface expression of the convergent plate boundary where the Philippine Sea Plate