在海沟后侧的弧后盆地的火山中，此处是一个板块俯冲到另一板块的地方，也发现了该类通道，。
They are also found in volcanic “back-arc” basins behind ocean trenches, where one tectonic plate is sliding beneath another.
耦合弱的特点与俯冲板块年龄小、抗挠强度弱、俯冲角度大、海沟后撤、岛弧裂离和弧后拉张等特点是一致的。
The weak couplings are in agreement with such tectonic features as young subduction slab, weak flexure strength, large subduction Angle, trench retreating, arc rifting and backarc extension.
新生代，东北地区作为太平洋板块俯冲带的弧后地区，形成了典型的弧后裂谷盆地。
In Cenozoic typical back-arc rift basins are formed in ne China where is the back-arc area of Pacific plate subduction zone.
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