Collaborative Research: Holocene Seismicity of the Cascadia Subduction Zone Based on Precise Dating of the Turbidite Event Record

0001023金手指0001074Nelson由于缺乏足够长的历史地震记录，地震特征的几个模型，如地震空区假说、重复率、集群和其他滑动可预测或时间可预测的模型，仍然没有得到很好的测试。这项研究继续研究卡斯卡迪亚会聚边缘的浊积史，那里沿边缘的海底水道记录了可能仅由大地震触发的区域海底滑坡体的全新世历史。将对该地区的岩芯进行年代测定和对比，以检验这些岩芯记录了与俯冲相关的大地震的历史这一假设。如果得到证实，基于浊流事件的古地震记录有望提供足够长的记录，以便更充分地检验当前的地震假说。

0001023 Goldfinger0001074 Nelson Several models of earthquake characteristics such as the seismic gap hypothesis, repetition rate, clustering and other slip-predictable or time-predictable models remain poorly tested because of the lack of a long enough historical earthquake record. This research continues work on the turbidite history along the Cascadia convergent margin where submarine channels along the margin have recorded Holocene history of regional submarine slides probably triggered solely by great earthquakes. Cores will be dated and correlated across the area to test the hypothesis that these are recording the history of large subduction-related earthquakes. If verified, the turbidite event-based paleoseismicity record is expected to provide a long enough record so that current seismic hypotheses can be more adequately tested.