## 4 Results
For the trajectory of LOS-descending in positive phase, events P4, P12, P13, P15, S1, S2, S7, S15 and S17 (oblique), S8 (reverse), and in negative phase, events P1, P5, P7, P14, P16, P17, S9, S13 and S16 (oblique), P9, P11 and S5 (strike slip) and P2 (normal) are concordant with the degree of surface deformation. We want to make it clear that, due to the strike plane described by the strike and oblique focal mechanism, these can occur in both the directions of LOS-ascending and descending. In order to establish a correct correspondence of the focal mechanisms of the surface (S) type, an association was made with the structural styles described on the surface as a reference point between the type of seismic activity, the tectonic and/or structural environment and the manifestation of the type of deformation on the surface (positive or negative). At the same time, for the focal mechanisms of the deep (P) type, based on their description in location and geometry, they were located on the tectonic environment in which this seismic  
Figure 6: Behavior of displacement in LOS for the study region between the years 2014 and 2021 (50 th percentile). Ascending orbital direction (**a**). Descending orbital direction (**b**). Red lines demarcate surface seismic events, blue lines demarcate deep seismic events. activity would be generated (Table 3). From this correlation, the source that generates the seismic activity and the effects generated on the surface are coherently established, providing reliable support to support the cause/effect conjecture. However, on the graph (Figure 6), there are still sectors that do not correlate with a seismic event generated from the two selections made (surface and deep). In this sense, the option of smaller magnitude events (4 to 5 Mw) that could have an impact on surface deformation conditions was explored. To do this, the range of dates that did not present a seismic event was taken as a basis and on this basis, a seismic event with the highest reported magnitude and that presented a focal mechanism according to the deformation generated was sought (Table 4). From this analysis a new research question is generated: To what extent can deep seismic events have an impact on the degrees of deformation on the surface? A solution to this question could be posed by the acquisition of data of greater precision than those described by the analysis of satellite observations. This data acquisition can be given by a direct measurement on the evaluated surfaces in this case, on the rock massif (Santander Massif), which through the installation of a Global Navigation Satellite System (GNSS) would have real-time data in the three coordinates for the moment of seismic wave generation. With this information, a more concrete answer could be given about the low-magnitude (Mw \(\leq\) 5)  
Figure 7: Focal mechanisms present in the region from the inventory of surface (S) and deep (P) seismic events. The purple polygon represents the study region, and the yellow lines are the main structures. Focal mechanisms were taken from the SGC [73] and the main structures were taken from the SGC [74]. deep seismic activity that may be generating surface deformation effects. In the same way, without considering the above, a great correspondence between seismic activity and the degrees of surface deformation is observed for the present study. This activity is directly proportional between the cause that is generated by the seismic event and its effect, which is described by the deformation created, considering that this deformation has variables that depend on the magnitude of the event, depth, focal mechanism, and horizontal distance, which are conditions that define the rate of displacement. As a final part of the proposed methodological scheme (step 5, Figure 2), a comprehensive analysis of the deformation conditions generated by tectonic activity present in the study region and its possible influence on the generation of instability planes was carried out.