In this study, the PRESTo package (PRobabilistic and Evolutionary early warning SysTem) is evaluated in the Tehran region, using the acceleration dataset of the TDDMO network (Tehran Disaster Mitigation and Management Organization) for four earthquakes M>4.0. The selected events are Sharifabad, magnitude 4.0 (2011), Javadabad, magnitude 4.1 (2015), Firoozkooh, magnitude 4.6 (2015) and Shahmirzad, magnitude 4.4 (2016). Despite of some problems such as low SNR and event station geometry, the obtained results are acceptable in terms of their uncertainties. In comparison to the results obtained by Iranian Seismological Center (IRSC), the maximum error of the calculated parameters are associated with the Javadabad and Shahmirzad earthquakes which is mainly due to lack of the recorded high quality data.