A Local Magnitude Scale for Slovakia, Central Europe

In this study, we present a local magnitude scale for the territory of Slovakia. Until now, the Hutton and Boore (1987) scale was used for local magnitude estimation in Slovakia. We collected trace amplitudes of earthquakes recorded by the National Network of Seismic Stations (NNSS) from 2005 to 2016 with epicentral distances of up to 550 km and a period within the interval '0.1, 2.0' s. Using linear regression analysis, we determined the distance correction term n and the attenuation term K. We determined the constant C according to Richter's definition of magnitude and we determined station corrections for nine stations. Using the newly determined scale reduces error by up to 58% compared to the formula previously used. We compared the obtained attenuation curve with those of neighboring and worldwide regions.