The Santa Ana volcano is one of the most active volcanoes in El Salvador, having experienced frequent swarms of seismic activity and past eruptions, including a large one in 2005 and a small one in 2007. Earthquakes near this area can have two different origins, the volcanic activity or the regional tectonic faults. This study will analyze earthquake signals recorded by a network of low-cost stations and broadband seismometers around the volcano. We will analyze the effects of the earthquake source, how waves travel through the rock layers, and local soil conditions at the recording sites. Comparing seismic events that occur at similar depths will help us find patterns that distinguish earthquakes caused by volcanic activity from those caused by tectonic processes. These results will improve our ability to identify the origin of future earthquakes and determine if they are due to the volcano, helping to strengthen early warning systems and support risk-reduction strategies for the communities living near the Santa Ana Volcanic Complex.