A large number of landslide events have repeatedly struck the border zone of the northwestern plateaus of Ethiopia. Debre Sina area is one of the most tectonically active areas located along the western margin of the Afar depression, which is frequently affected by landslides. Despite that, urban and rural development is currently active in almost the entire area. It is crucial, therefore, to understand the main causes and failure mechanisms of landslides in the Debre Sina area and its surroundings. The present study investigated landslides using field mapping of geological and geomorphological features, remote sensing, geo-morphometric analysis, structural analysis, rainfall data, landslide inventory, and earthquake data. The results of the study indicate that large-scale and deep-seated landslide problems appear to be caused by complex geological settings and rugged topography. In particular, the location and morphology of the Yizaba Wein and Shotel Amba landslides are strongly controlled by geological structures. Their flanks are bounded by high angle faults, and their main basal failure surfaces have developed within a W–E striking eastward-dipping normal fault zone. The complex litho-structural and morphologic settings play a vital role in controlling the geometry of the slip surfaces and the stability of the landslides.

大量的滑坡事件屡屡袭击埃塞俄比亚西北高原的边界地区。德布雷西纳地区是阿法尔凹陷西部边缘的构造活动最活跃的地区之一，阿法尔凹陷经常受到滑坡的影响。尽管如此，目前几乎在整个地区都活跃着城乡发展。因此，了解德布雷西那地区及其周围地区滑坡的主要原因和破坏机理至关重要。本研究使用地质和地貌特征的野外测绘，遥感，地貌分析，结构分析，降雨数据，滑坡清单和地震数据对滑坡进行了调查。研究结果表明，大规模和深层次的滑坡问题似乎是由复杂的地质环境和崎的地形引起的。尤其是，伊扎巴韦恩和安巴Shotel滑坡的位置和形态受到地质构造的强烈控制。它们的侧面被高角度断层所包围，并且它们的主要基底破坏面已在W-E向东倾斜的正常断层带内发育。复杂的岩石结构和形态学环境在控制滑动面的几何形状和滑坡的稳定性方面起着至关重要的作用。并且它们的主要基底破坏面在W-E向东倾的正常断裂带内发育。复杂的岩石结构和形态学环境在控制滑动面的几何形状和滑坡的稳定性方面起着至关重要的作用。并且它们的主要基底破坏面在W-E向东倾的正常断裂带内发育。复杂的岩石结构和形态学环境在控制滑动面的几何形状和滑坡的稳定性方面起着至关重要的作用。