Corals reveal that part of the plate-boundary fault near Sumatra slipped slowly and quietly for three decades before a large earthquake in 1868. The exceptional duration of this slip event has implications for interpreting deformation to assess seismic hazard.

中文翻译：

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未冲巨推力

珊瑚显示，苏门答腊附近的板块边界断层部分缓慢而安静地滑动了数十年，直到1868年大地震。这一滑移事件的异常持续时间对解释变形以评估地震危险具有重要意义。