Reply on RC2

• In general, the paper is well written, and methodology and results are clearly presented. However, introduction of 4 pages seems to be too large and makes it difficult to identify the main focus and scientific gap to be researched. It would be convenient to shorten the introduction. In addition, since the main topic is the human vulnerability, I suggest to shorten the paragraphs from lines 36 to 66, since specific explanation of fragility curves may not be necessary.

A: We understand the reviewer's suggestions. While we decided not to shorten the Introduction section (as we considered relevant to deliver a comprehensive review of the state-of-the-art on tsunami human vulnerability), we enhanced this section with further references, and a more specific focus on how this vulnerability relates to the attributes of the geographical and built environments. A: We modified this figure to also include (for each case study) the tsunami arrival time.
• Section 2.2.1 should include a figure with example of simulation grids and all tsunami scenarios used in the analysis.
A: We included a new figure to show the simulated seismic scenarios used for the case studies. In page 8, line 175 (old manuscript).
• Even though the resolution of the tsunami simulation is 4m, it would not be necessary to use the same resolution for the agent-based simulations. Since the inundation was recorded every 10 min (line 174), this measure can give you a necessary resolution for agent-based simulations. In fact, several resolutions may be used and similar results should be obtained.
A: We understand the suggestion made by the reviewer. However, the modelling technique used the STOC software, which couples tsunami and evacuation models, therefore using the same grid with a unique resolution. This feature makes unfeasible to execute the agent-based model independently using a different grid size. • Line 172. Please clarify why only 45 min of elapsed time was used. It is well known that Talcahuano has some resonant effect and maximum tsunami inundation take place after several hours. In addition, it has been observed that the second or third wave are usually the largest one.
A: We understand the suggestion made by the reviewer. Indeed, local effects may lead to several hours of sea level anomalies. Nevertheless, preliminary modelling tests showed that evacuations in every case study would not take more than 36 minutes to complete. Therefore, we set up a 45-minute threshold to conservatively encompass the total evacuation process, regardless of longer tsunami effects. We included further explanation of this in the manuscript. Page 8, line 173 (old manuscript).
• Line 322. Only 0.74% of cells in Talcahuano show to have elevated dead ratio. It is not unexpected since the inundation given in figure 1 is not that large. What would be the result if you analyze the maximum tsunami inundation instead of just 45 min?
A: As we pointed out above, our methodology uses a coupled tsunami-evacuation model where both phenomena develop along the same timeline. Therefore, if the maximum tsunami occurs after the evacuation was complete (in the case of Talcahuano, roughly 27 minutes after the tsunamigenic earthquake), no extra casualties will occur. Of course, this might change if we change the model's assumptions, such as the evacuation departure rate.
• Line 340. I understand that from an evacuation point of view you are interested in the first tsunami front. This may explain why you used only 45 min. However, in 45 min, some areas may have 2 or 3 tsunami waves, while Talcahuano would have only one. It would be necessary to use the same criterion for all locations.
A: Please see our answers above.
• Lines 346. It is observed that average number of casualties would occur within 300 m from coastline. It would be interesting to analyse the effect of distant to trench, due to the fact that this variable affect tsunami propagation and subsequently the tsunami arrival time. Therefore, cities in northern Chile would experience larger number of tsunamicaused deaths than cities in central or southern Chile. Is that correct?