## 4 Conclusions  
In this work, the effects of a hypothetical lateral fault earthquake that could occur in the Colima rift were studied. Some seismic scenarios of a magnitude 7.1 strike-slip earthquake occurring in the Colima rift using the empirical [PERSON]'s function method were simulated. Recordings from a temporary acceleration network installed on a line near the coast in the state of Michoacan were used. During its operation, the network recorded two events with the same fault plane, one of M 4.3 and another of M 5.1. Using the latter and through the empirical Green's function method, the simulation of the M 7.1 earthquake with a rupture area of \(25.2\times 25.2\) km\({}^{2}\) was performed. Seven different models were recreated, varying the rupture starting point. Waveforms in velocity and acceleration were generated for five sites. The maximum acceleration (PGA) and velocity (PGV) of all stations and scenarios were obtained. The maximum intensities for each of the seven models were estimated. The highest PGA was 74.1 cm/s\({}^{2}\) and corresponds to an IMM intensity of V at the FMIR station located 60 km from the epicenter. In the present study, an earthquake with an unusual focal mechanism in a subduction zone is analyzed, i.e., an earthquake with strike-slip faulting. Most of the seismicity in Michoacan is associated with subduction, although some intraplate events are also present. The main difficulties in this region are the lack of a permanent seismic network and the fact that the available temporal data are, in general, not open access. These records constitute a useful input for seismic hazard studies in the state of Michoacan and for technical standards of earthquake design that could be considered in the corresponding construction regulations. There are studies on seismic hazards in western Mexico; however, these are based on probabilistic estimations [36]. The current trend is to complement the probabilistic studies with seismic scenarios of potential earthquakes that generate intensities not considered in probabilistic approaches. Although these simulations are limited to 5 sites, they provide important information in a state that, despite its significant seismic activity, has very few permanent seismic stations. A larger number of seismic stations would provide a better and more complete analysis and may help in obtaining a deeper understanding of the geodynamics of the region. Some other potential limitations of the study could arise from the inherent hypothesis of the method of empirical Green's functions, which may induce bias in the estimation of the seismic source. This could affect the precision of the wave simulation. The uncertainties \begin{table}
\begin{tabular}{l l l l l l l l l l} \hline \hline Sense Movement & Not sense & Low & Light & Moderate & Strong & Very Strong & Severe & Violent & Extreme \\ \hline Pot. dam. & None & None & None & Very & Light & Moderate & Moderate & Strong & Very strong \\  & & & & low & & & strong & & \\ \hline PGA (\%g) & \(<\)0.17 & 0.17–1.4 & 1.4–3.9 & 3.9–9.2 & 9.2–18 & 18–34 & 34–65 & 65–124 & \(>\)124 \\ PGV (cm/s) & \(<\)0.1 & 0.1–1.1 & 1.1–3.4 & 3.4–8.1 & 8.1–16 & 16–31 & 31–60 & 60–116 & \(>\)116 \\ Inst. int. & I & II–III & IV & V & VI & VII & VIII & IX & X+ \\ \hline \hline \end{tabular}
\end{table} 
Table 3: The Relationship between intensities, maximum accelerations, and maximum velocity (after [35]). Pot dam. = Potential damage, PGA = Peak Ground Acceleration, PGV = Peak Ground Velocity, Inst. int. = Instrumental intensity. in the rupture parameters, such as the distribution of the released energy and the timing rise, may influence the prediction models. There are studies on seismic hazards in western Mexico; however, these are based on probabilistic estimations. The current trend is to complement the probabilistic studies with seismic scenarios of potential earthquakes that generate intensities not considered in probabilistic approaches.