<p>In the last decades, the discovery of seismic signals other than those known as classical&#160;earthquakes have changed our understanding of the dynamic process of lithosphere fracturing&#160;with implications for seismic monitoring. These signals are hypothesized to be generated by slow&#160;slip on faults and/or by the motion of fluids in the crust. The earthquakes that occur in the Azores&#160;archipelago are thought to result from the interaction between a tectonic triple junction and a&#160;low-velocity (possibly hot) anomalous mantle. Although most of the seismic activity in this&#160;region is tectonic, there is also evidence of seismic activity related to hydrothermal and&#160;magmatic activity, which makes the Azores region a privileged natural observatory for studying&#160;different types of seismic signals. In this work we will then focus on the spatio-temporal&#160;evolution of the February 2018 seismic sequence which occurred in the island of S&#227;o Miguel. We&#160;will carry out detection and preliminary location of seismic events using Lassie, an open-source&#160;software for earthquake detection. We will also perform waveform similarity and clustering&#160;analysis to understand the detailed spatio-temporal evolution of the crisis.</p><p>This work is funded by FCT through projects UIDB/50019/2020 &#8211; IDL and PTDC/CTAGEF/&#160;6674/2020 (RESTLESS).</p>