## 1 Introduction  
The interaction between tectonics and erosion has been a significant issue of discussion for several years among many scientists. Since the tectonic impacts on the Earth's surface processes have been observed and investigated widely, the erosional impacts have recently been recognized and linked to them [1]. The simplest queries raised regarding this issue concern the relationship between tectonics and erosion and determining the implication of this interaction. Tectonic geomorphology is one of the most helpful techniques for investigating the different processes of the Earth's surface, providing important clues regarding its general topography and erosional effects [1]. The drainage patterns and complex flow systems of a river are active processes in nature that change randomly through both space and time and are controlled by various parameters such as the geomorphology, geology, climatology, soil, and vegetation of a given landscape [2, 3]. An analysis of different watersheds presents important insights into a catchment's evolution and present-daytectonic and soil erosion characteristics. Morphotectonic and morphometric analyses are two of the most significant quantitative tools that provide a wide range of parameters, extracting very valuable information in order to examine and assess the Earth's surface processes. It is highly recommended that watershed characteristics and hydrological conditions are evaluated through these analyses in order to help decision makers implement effective and suitable plans. In terms of a literature review concerning the current topic, geomorphological analyses of various watersheds for an active tectonic assessment have been widely applied by many researchers in different regions. For example, [PERSON] et al. [4] studied the relative tectonic activity and analyzed the deformation signals of watersheds west of Dokan Lake in Iraq using basin morphometric analysis and their drainage systems; [PERSON] et al. [5] applied a morphometric approach to recognize active zones of deformation in a Meghalaya watershed in India; and [PERSON] et al. [1] studied the watersheds of the entire East Anatolian Fault in eastern Turkey, resulting in the recent evolution of this major transform fault and enhancing our knowledge of the tectonic activity of continental major faults. On the other hand, the watershed prioritization method has been used and developed by several researchers for soil erosion studies. For example, [PERSON] et al. [6] prioritized the sub-watersheds of the Wyra basin in India using a morphometric analysis for soil erosion, and [PERSON] et al. [7] have developed an automated GIS-based method for watershed prioritization in order to reduce possible uncertainties. Additionally, applying a morphometric analysis and watershed prioritization for flash flood hazard assessment were broadly presented by many previous studies, and [PERSON] and [PERSON] [8] presented a watershed prioritization analysis using morphometric analysis and GIS in tropical and some subtropical areas in Mexico. Several factors, such as soil loss, morphometric parameters, socio-economic activities of inhabitants, etc., may help in detecting and classifying sub-watersheds based on watershed prioritization processes [9]. Several scientists have applied this method successfully and broadly in watershed prioritization projects. For example, the authors of [10] recognized a suitable location for a check dam in the Tarafeni River in the southwestern part of West Bengal. This was based on watershed prioritization using remote sensing, GIS, a sediment yield sediment model, and a morphometric analysis. The purpose of this study is to explore the parameters related to the Earth's surface processes, topography, and hydrology conditions. An analysis of morphotectonic and morphometric parameters aims to investigate the activity change and soil variation of one of the main basins along the eastern Red Sea coast in Saudi Arabia.