title: CLASSIFICATION OF EARTHQUAKES. RATING SCALE
abstract: Earthquakes are one of the most powerful and unpredictable natural phenomena on our planet. Understanding the nature of earthquakes is of utmost importance for seismic regions, such as the Balkan Peninsula. Bulgaria is located in an active seismic zone, and a significant part of its territory is affected by the activity of the fault systems in the Pernik, Krupnik, Chirpan zones, as well as by deep-focus earthquakes in Vrancea (Romania). The study of earthquakes includes several main aspects - de