A time-based complex network analysis on the seismic activity along the coast of Chile was made. The coast of Chile was divided on windows of 300 km in Latitude, from Arica up to Los Angeles. The window was moved 100 km from north to south. We built a time-based earthquake complex network, on each window and we studied a directed and undirected complex network. Assuming a self-similar data network, for the directed network we found the value of the power-law characteristic exponent γ for the connectivity probability distribution. For the directed network, we analyzed the average path length, measured through steps and meters, of the data set. For each window, we obtained a similar relation between the value of γ and the average path length. The exponents and values were evaluated for the data set with the total number of seismic events with a depth greater than 200 km and of magnitude greater than Mw=3.0.

We characterize $117$ seismic events occurred in Chile and registered at the Wetzell Geodetic Observatory (BWLRAS) in Germany in terms of rotational seismic parameters. Using the Minimum Curvature Interpolation method, we create a $2$D map with the Vertical Rotation Rate (VRR) divided in three zones from the Chilean Coast: Northern, Central, and Southern area. In order to describe the behavior of VRR along time, we create a timeline and seismic moment model showing events in these areas with different values of VRR. The analyzed data includes four large earthquakes occurred in different zones with magnitudes greater than $M_w$7.5. We focus our analysis in the values of the rotational velocity for these earthquakes and show that the VRR does not have a clear relation with the seismic moment magnitude. Our results open a new way to describe and study seismic events. It can be useful to generate a deeper understanding of the dynamics in the underlying processes involved in the earthquake occurrence. As well, our results could serve to improve safety regulations in construction and mining, since important rotational movements may be present even within low moment magnitude events.