Quaternary uplift is well documented in SE Sicily, a region prone to damaging seismic events, such as the 1693 “Val di Noto” earthquake (Mw 7.4), the largest seismic event reported within the Italian Earthquake Catalogue, whose seismogenic source is still debated and, consequently, the long‐term seismic hazard is poorly understood. However, the spatial variation in the timing and rates of uplift are still debated, so it is difficult to link the dominant tectonic process(es) responsible for the uplift and the location of seismogenic sources. To better constrain the uplift rate, we have refined the dating of Late Quaternary marine terraces, using a synchronous correlation approach, driven by both published and newly obtained numerical age controls (²³⁴U/²³⁰Th dating on corals). This has allowed recalculation of uplift rates along a N‐S oriented transect within the Hyblean Plateau (HP) foreland region. Consequently, we have mapped the geometry of paleoshorelines along a coastline‐parallel transect and hence the rates of uplift. The results suggest increasing uplift rate from south to north across the HP and that uplift rates have remained constant through the Late Quaternary. This spatially changing but temporally constant uplift places constraints on the proportion of uplift produced by regional geodynamic processes versus produced by local faults, such as an offshore east dipping active normal fault. We discuss these new findings in terms of the long‐term seismic hazard for one of the most seismically active regions in the Mediterranean Basin.

中文翻译：

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区域变形和近海地壳局部断层作为组合过程来解释通过时间差异引起的隆升，这是通过调查差异抬升的晚第四纪古海岸线：西西里岛前陆海底高原

第四纪隆升在西西里岛东南部很容易受到破坏，该地区容易发生地震，例如1693年的“瓦尔迪诺托”地震（Mw 7.4），这是意大利地震目录中报告的最大地震事件，其震源仍在争论中，因此，人们对长期地震危害了解得很少。但是，关于隆升的时间和速率的空间变化仍然存在争议，因此很难将负责隆升和震源位置的主要构造过程联系起来。为了更好地限制隆升速率，我们采用了同步相关方法，在已发布和新获得的数值年龄控制方法（²³⁴ U / ^230）的驱动下，完善了晚第四纪海相阶地的测年。在珊瑚上约会）。这样就可以重新计算Hyblean高原（HP）前陆地区内沿NS方向的断面的隆升速率。因此，我们绘制了沿海岸线平行样带的古海岸线的几何图形，并因此绘制了上升速率。结果表明，整个HP上的隆升速率从南向北增加，并且直到第四纪末期隆升速率一直保持不变。这种在空间上变化但时间上恒定的隆升限制了区域地球动力学过程产生的隆升与局部断层（例如海上东倾活动正断层）产生的隆升的比例。我们将就地中海盆地中地震最活跃地区之一的长期地震危险性来讨论这些新发现。