Abstract The annual banded skeletons of reef corals potentially record past earthquakes events. We examined cores of five living Porites coral heads in Simeulue Island, Indonesia, near the epicenter of the 2004 Sumatra-Andaman and the 2005 Nias-Simeulue earthquakes. These sites showed 0.4–1.4 m of uplift. We measured skeletal strontium, magnesium, and calcium; carbon and oxygen isotopic ratios; and skeletal density, extension, and calcification rates, from 1994 to 2010. Coral geochemistry fluctuates more than are expected from strictly environmental causes; however, stress bands, reduced growth rates, and changed skeletal δ13C appear to reflect the tsunami and seismic uplift (the step change in skeletal δ13C results equated to 0.31 ± 0.10‰/m in response to the 2004 uplift and 0.23 ± 0.03‰/m to the 2005 uplift).

中文翻译：

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2004 年和 2005 年苏门答腊大地震期间珊瑚地球化学信号和生长对同震隆升的响应

摘要 珊瑚礁一年生带状骨骼可能记录过去的地震事件。我们检查了印度尼西亚 Simeulue 岛 5 个活体珊瑚礁的岩心，该岛靠近 2004 年苏门答腊-安达曼和 2005 年 Nias-Simeulue 地震的震中。这些站点显示出 0.4-1.4 m 的隆起。我们测量了骨骼中的锶、镁和钙；碳氧同位素比值；从 1994 年到 2010 年，骨骼密度、扩展和钙化率。珊瑚地球化学的波动超出了严格的环境原因的预期；然而，应力带、增长率降低和骨架 δ13C 的变化似乎反映了海啸和地震抬升（骨架 δ13C 结果的阶跃变化相当于 0.31 ± 0.10‰/m 响应于 2004 年的抬升和 0.23 ± 0.03‰/m到 2005 年的上升）。