2021年ニュージーランド・イーストケープで発生したスラブ内地震の複雑な破壊過程が照らす、スラブのたわみ

・A moment magnitude 7.3 2021 East Cape, New Zealand intraslab earthquake comprised multiple rupture episodes with different faulting styles.
・The complex rupture comprises components of shallow trench-normal extension and unexpectedly, deep trench-parallel compression in slab.
・The trench-parallel compression likely reflects stress rotation at a buoyancy contrast that drives slab contortion.

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