Itoigawa-Shizuoka Tectonic Line
Itoigawa-Shizuoka Tectonic Line, also Ito Shizu Sen is a major fault on Honshu island that runs from the city of Itoigawa, Niigata Prefecture, through Lake Suwa to the city of Shizuoka in Shizuoka Prefecture. It is often confused with the Fossa Magna, a geological feature it forms the western boundary of.Recent significant earthquakes on this tectonic line include:
