Potential Locations of Strong Earthquakes in Bulgaria and the Neighbouring Regions

Figure 3

Morphostructural zoning map of the Bulgarian region. Lines represent lineaments: thick yellow ones—I^st rank lineaments, medium thickness green lines—II^nd rank lineaments, and thin blue lines—III^rd rank lineaments. Solid lines represent—longitudinal lineaments and dashed lines—transverse lineaments. The nodes are represented by black dots, along with their corresponding numbers in black (some nodes are excluded during the recognition process). The light blue dots are epicenters of earthquakes with and labeled with their respective year of origin.