Table 1 Details of sites of Italian seismic stations used in this study.

1. Fabriano (Borgo)

12°53′55″

43°20′10″

Holocenic-Pleistocenic fluvial-colluvial deposits.

Marly Tertiary bedrock at 10 meters depth.

2. Celano 1

13°33′08″

42°03′42″

Holocenic-Pleistocenic fluvial and fluvioglacial deposits

(gravels and sands). Carbonatic Bedrock at 10–100 m.

3. Celano 2

13°31′54″

42°00′04″

Holocenic-Pleistocenic lacustrine deposits (clays, silts and sands).

The bedrock is at several hundred metres depth.

4. Celano 3

13°31′54″

42°00′00″

Holocenic-Pleistocenic lacustrine deposits (clays, silts and sands). The bedrock is at several hundred metres depth.

5. Celano 4

13°31′54″

41°55′45″

Outcropping Mesozoic bedrock (stratified limestone).

6. Celano 5

14°23′44″

41°56′36″

Sub-outcropping Mesozoic bedrock (massive limestone).

7. Fabriano (Vallina)

12°48′46″

43°20′44″

Holocenic detrital deposits: rubbles, pebbles, gravel with clay.

The depth of the bedrock is at about twenty meters.

8. Fabriano (Cupo)

12°47′48″

43°20′28″

Holocenic detrital deposits: pebbles, gravel, sands with clays.

The depth of the bedrock is at about twenty meters.

9. Fabriano (Belvedere)

12°51′42″

43°14′18″

Outcropping Tertiary bedrock: marls, silty marls and calcarenites.

10. Fabriano (Spina)

12°55′09″

43°19′55″

Holocenic eluvial-colluvial deposits: clays, limes and sands.

The Miocenic-Tertiary bedrock constituted by marly clays is at 3 to 10 metres depth.

11. Raggiano

13°2′4″

43°8′24″

Marls

12. Caltabellotta

13°12′50″

37°34′40″

Carbonatic Bedrock