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东亚地区按地壳结构的差异可明显地分为两部分-西部和东部。西部(环太平洋带外带)具有典型的大陆结构,在其范围内发育着构造-岩浆活化区和大陆边缘火山带。东部(环太平洋带内带)是大陆和大洋的过渡带。具有通常所谓过渡性的复杂结构;过渡带地壳上叠有年轻(中生代和新生代)地槽和岛弧火山带。过渡带东部与典型的太平洋床毗邻。
The differences in crustal structure in East Asia can be clearly divided into two parts - the west and the east. The western (Pacific Rim) has a typical continental structure within which is the tectono-magmatic activation zone and continental marginal volcanic belt. The eastern part of the Pacific Rim is a transition zone between the mainland and the ocean. With so-called transitional complex structures; young (Mesozoic and Cenozoic) troughs and island arc volcanic bands superimposed on the crust of the transition zone. The eastern part of the transition zone is adjacent to the typical Pacific bed.