Could someone predict the approximate locate without using a seismograph?

Yes, it is possible to approximate the location of an earthquake without a seismograph by using data from multiple sources, such as reports from people who experienced the earthquake, analysis of secondary effects like tsunamis, and geological studies of fault lines. Additionally, methods like triangulation can be employed by collecting seismic wave data from various locations, even if not directly measured by seismographs. However, these methods would be less precise than using traditional seismographic data.