Abstract:
The work focuses on comparison of the magnitude estimations for near earthquakes determined by the Bulgarian Seismic Center (SOF) with the assessments of the national centers in the neighboring Balkan countries (Romania – BUC, Serbia – BEO, Macedonia – SKO, Greece – THE and NOA and Turkey – KAN) and the European Mediterranean Seismic Center (EMSC). 372 earthquakes located in a spatial window of 40.0º – 44.5º N; 21.0º – 29.0º E, occurred in 2007 – 2011, with ML magnitudes ranging from 3.0 up to 5.4 (the lower magnitude threshold M = 3.0 is determined by SOF) were used in the study.