This study investigates the slip rate of the Lembang fault, Indonesia, from Sentinel-1 images and GNSS measurements. The authors argue potential seismic hazards around the fault based on the estimated slip rate and previous recurrence of large earthquakes. 

Because investigating seismic hazards posed by the Lembang fault is not only interesting from a scientific point of view but also important from a practical point of view, this study merits publication. However, the manuscript improves by addressing the following points. 

1. The authors' definition of locking (d1) and creep depths (d2) needs to be clarified. The equation below Line 100 indicates that the fault creeps from the surface to the d2 with a rate C, locks between d2 and d1, and slips below d1 with a rate S. If that is the case, d1 must be greater than d2. However, Figure 6 indicates that d2 can be greater than d1. To resolve my confusion, the authors must clearly define d1 and d2 with a figure, if necessary. 

2. Figure 5 shows no discontinuities in the observed velocity field, indicating that surface creep is unlikely. Nonetheless, the authors assume the surface creeps on the fault. Is there any evidence for surface creeps from surface measurements, for example? 

3. The Lembang fault dips to the north by 75 degrees (Line 24), but the modeling assumes a vertical fault (Line 100). Does this discrepancy affect the modeling much?

4. The authors should say something about the subsidence of >50 mm/yr to the south of the Lambang fault because it is more visible than the displacement by faulting. 

5. The scenario seismic hazard delineated in Section 5 depends on the obtained fault-slip parameters, which have a fair amount of uncertainties. Then how does this scenario change with different fault-slip parameters within uncertainty bounds?

6. I cannot understand how to look at Fig. 6. I understand that the black part at the center of a contour is where the probability is high. Then, how about the black part at the edge of and outside of the contour?

7. Related to the above comment, does Fig. 6 show that there are trade-offs between slip rate and creep depth, for example? 

8. Line 103: What is emcee?