We determined epicenters and magnitudes using data from the single broadband seismic station in Sri Lanka, PALK. First, we analyzed earthquakes to which epicentral distances from PALK were within 40 degree. Most of the events are in and around Andaman and Nicobar Islands in the Indian Ocean. The obtained results show that it is possible to determine epicenters and surface wave magnitudes with acceptable accuracy using a single station method.
We also analyzed an earth tremor in Sri Lanka using data from the PALK station. Despite high frequency noises contained in the data, the epicenter determined by the single station method is consistent with felt reports. The calculated local magnitude is 3.2.