Based on a morphostructural analysis of a cliff coast segment of Forkastningsfjellet, back analysis of the August 12th, 2016 rock slide situated at 78°19′10”N/15°39′52″E was carried out. This rock slide comprises a volume of 175,000 m³, and indicates a partial reactivation at the front of the ~100 million m³ large postglacial Forkastningsfjellet rock slide. We studied the controlling and triggering factors of the reactivation using a 2-D limit-equilibrium calculations and a 3-D simulation with Scoops3D. Slope instability initiated along a pre-existing listric block fault that was inherited from the postglacial Forkastningsfjellet rock slide. The cause of the failure is attributed to a strength decrease and additional water pressures along the pre-existing sliding plane, possibly in combination with a degradation of the affected weak shales of the Rurikfjellet Formation, which build up a major part of the steep slope.

Although the analysis suggests a structural control on the type and mechanism of slope failure, a significant impact of climate-related factors is inferred. Increasing temperatures and changing precipitation trends are reported from Svalbard. These are interpreted to foster permafrost degradation and reduce bonding forces in the thawing ice-filled fractures at the site. In addition, progressive weakening by more frequent frost and thaw cycles of the slaking shales and the introduction of additional water pressures to the rock mass are considered to contribute to the instability. The final trigger of the 2016 failure is attributed to a two-day rainfall that had preceded the event.

The application of the Scoops3D software tool showed that it is capable of predicting the locations and affected volumes of landslides with reasonable accuracy, when the geological and structural setting is well established. Under such premises the tool can be used to support preliminary susceptibility assessments in study areas with comparable geological and morphostructural settings.

基于 Forkastningsfjellet 悬崖海岸段的形态结构分析，对 2016 年 8 月 12 日位于 78°19′10”N/15°39′52”E 的岩石滑坡进行了背分析。该岩石滑坡包含 175,000 m ³的体积，表明在 ~100,000 m ³的前部部分重新激活大型冰后 Forkastningsfjellet 岩石滑坡。我们使用 2-D 极限平衡计算和 3-D 模拟与 Scoops3D 研究了重新激活的控制和触发因素。沿从冰后 Forkastningsfjellet 岩石滑坡继承的先前存在的链块断层开始的边坡不稳定。失败的原因归因于强度降低和沿预先存在的滑动面的额外水压，可能与构成陡坡主要部分的 Rurikfjellet 地层受影响的弱页岩的退化相结合。

尽管分析表明对斜坡破坏的类型和机制有结构控制，但推断气候相关因素的显着影响。斯瓦尔巴群岛报告了气温升高和降水趋势变化。这些被解释为促进永久冻土退化并减少现场融化的充满冰的裂缝中的粘合力。此外，由于熟化页岩更频繁的霜冻和解冻循环以及向岩体引入额外的水压而导致的逐渐减弱被认为是导致不稳定的原因。2016 年失败的最终触发因素是事件发生前两天的降雨。

Scoops3D 软件工具的应用表明，当地质和结构设置良好时，它能够以合理的精度预测滑坡的位置和受影响的体积。在这样的前提下，该工具可用于支持具有可比地质和形态结构设置的研究区域的初步敏感性评估。