Exploring Europa, one of Jupiter’s icy moons, is crucial for advancing our understanding of extraterrestrial geology and potential habitability. Current global gravity models are insufficient for detecting and characterizing specific seafloor features due to their coarse resolution. This study aims to predict whether Line-of-Sight (LoS) gravity signatures derived from Doppler residuals can be used to identify specific geological features on Europa’s seafloor, such as mountain ranges, valleys, impact basins, rift zones, and subduction zones. By employing spherical harmonic modeling, we assessed the detectability of these features and evaluated the resolution required to distinguish them. Our findings indicate that the expected LoS Doppler residual data may not provide sufficient resolution to differentiate between various geological formations on Europa’s seafloor, primarily due to the low resolution of gravity anomalies and the spacecraft’s distance from the surface. These limitations suggest that gravity signatures alone may not offer enough information for precise interpretation of Europa’s subsurface geology. Future research should explore alternative data analysis methods, such as machine learning, and combine gravity data with other geophysical measurements to improve the detection and characterization of Europa’s seafloor features.