Research Article

Potential Locations of Strong Earthquakes in Bulgaria and the Neighbouring Regions

Table 2

Parameters employed for recognition and thresholds of their discretization.

Parameter’s typeParametersDiscretization thresholds

Morphometric characteristicsTopographic altitude, maximum (m): 1053
Topographic altitude, minimum (m): 91; 238
Topographic difference (m): 896
to horizontal distance (km): L23
Slope: 24; 55

Geological characteristicsNode area covered by quaternary sediments (%): Q17

Lineament-and-block geometryLineament’s highest rank in a node: HR1
Lineament number, creating a node: NL2
Distance to the nearest lineament of Ist rank (km): R10
Distance to the nearest lineament of IInd rank (km): R223
Distance to the nearest node (km): 18

Morphological characteristicsTectonic deformation’s contrast and intensity3

Gravity characteristicsBouguer anomaly, maximum (mGal): 35; 50
Bouguer anomaly, minimum (mGal): 15
Bouguer anomaly difference (mGal): 20

Magnetic field characteristicsMagnetic anomaly, maximum (nT): 23.3
Magnetic anomaly, minimum (nT): -42.4; -8.0
Magnetic anomaly difference (nT): 48.8