Stress state of a subducting plate and distribution of earthquakes (IMAGE)

Science China Press

Stress state of a subducting plate and distribution of earthquakes

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(a) Stress state and focal mechanisms of a subducting plate (modified from Goes et al., 2017; Zhan, 2020). Stress state of the slab is dominated by plate-parallel extensional stress in the upper mantle, and plate-parallel compressive stress in the mantle transition zone. (b) Histogram of focal depth of global earthquakes. (c) Anticrack in metastable olivine (modified from Zhan, 2020). Mineral abbreviations: Brg: bridgmanite; Mws: magnesiowüstite; Rdw: ringwoodite; Wds: wadsleyite.

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