###### Abstract  
The Gulf of Suez area represents one of the most famous tectonic structures in the Red Sea, with a long history of low-, moderate-, and high-intensity earthquakes. This paper provides geometric analytics of the fault-initiated mountain front sinuosity (S\({}_{\text{mI}}\)) and the stream gradients that cross various segments of the fault scarps. The results from the mountain front sinuosity index (S\({}_{\text{mI}}\)) and the valley floor width to valley height ratio index (V\({}_{t}\)) suggest different levels of activities along the different fault segments. The analysis of the stream gradient index reflects that streams running through the fault segments mostly have higher river gradient values identified by knickpoint spots. With regard to the strike variation in the mountain front sinuosity, valley floor width to valley height ratio, and stream river gradients, the results are compatible with the predominant mountain front's relief. Finally, the calculated geomorphic results show that the eastern segments might reflect higher seismic signals with respect to the central and western segments of the entire Wadi Araba basin. Thus, more careful studies are required to investigate seismic hazard possibilities. geospatial data; landscape tectonic activity; seismic hazards; Wadi Araba; Gulf of Suez; Egypt 2022121521215212  
applied along many deformed areas, including in California [3; 11]; Central America [12]; Southern Spain [13]; Eastern Anatolia [14]; Pakistan [15]; India [16]; Central Iran [17]; and Egypt [18]. We investigate the Wadi Arab basin to gain insights through a tectonic activity assessment of the entire landscape. The northern end of the Red Sea rift, including the Gulf of Suez, has been recognized as an excellent example of a major continental rift system that provides a huge natural laboratory for investigating tectonic activity signatures and fault systems [19]. The Red Sea, together with its northwestern arm, the Gulf of Suez, shows different tectonic evaluation stages which indicate that the latest continental rift in the Gulf of Suez is a transitional stage in the central part of the Red Sea [19; 20]. The Suez rift extends \(\sim\)300 km as a continental rift between the African plate and Sinai Peninsula [21; 22; 23; 24]. The author of Ref. [20] recognized three different tectonic dip blocks linked by two accommodation zones from north to south: The Galala-Abu Zenima accommodation zone and Morgan accommodation zone [22]. The Gulf of Suez is characterized by a moderate slip rate along active faults and earthquake recurrence intervals. The seismic activity of this rift is driven and migrated northward from the southern part of the Gulf of Suez [25; 26]. Compared to active plate boundaries, the northern Red Sea and Gulf of Suez area reflects low to moderate signals of tectonic activity. The Wadi Arab basin is one of the major broad structure-controlled valleys in the northern part of the Gulf of Suez separating the Northern and Southern Galala Plateaus. It represents the onshore region of a central half graben. The Wadi Arab basin follows the direction of the Syrian Arc structure system. Although the tectonic evolution and structural architecture of the Gulf of Suez have been discussed by many researchers, the activity of the highly deformed Wadi Araba has not been quantified, making it hard to evaluate the local seismic signals. The presence of many huge construction projects and populated cities around the study zone (e.g., the new Galala City) increases the importance of studying the seismicity behaviors of the Northern and Southern Galala Plateaus through modern techniques, such as remote sensing, geospatial analysis, and tectonic geomorphology. Bare surfaces without vegetation and clear exposures of the surface morphology due to the semi-arid climate provide suitable conditions to extract data on the mountain front sinuosity, shape of valleys, and river gradients, all of which can be helpful in describing short- and long-term seismic deformations in the study area.