金沙江—红河断裂带,系由若干条断裂组成的宽可达数十公里的复杂断裂构造带。它北与甘孜—理塘深断裂相交。下关以北,除北段作北西走向外,为近南北走向;下关以南则转为北西—东南向,经河内附近入海;在东经109°30′、北纬17°附近,又转为近南北走向,直至北纬5°附近。陆地部分长约2000公里,总长超过3700公里。 Jinsha River - Honghe fault zone, is composed of a number of faults composed of up to tens of kilometers wide and complex fault zone. It is north and Ganzi - Litang deep fracture intersection. North of Shimonoseki, in addition to the north section of the north west to the north-south direction; the south of Shimonoseki turned Northwest - southeast, near the river into the sea; in longitude 109 ° 30 ’, latitude 17 ° near the turn into Near North-South, until 5 degrees north latitude. Land part of about 2000 km, total length of more than 3700 km.