Table 2.
Stress inversion parameters σ1, σ2, σ3, and R′ are computed for sectors 1, 2, and 3 starting from the FMS-Catalog and the collected focal mechanism solutions. Key: Sec. = sector; n/nt = number of inverted FMs with respect to the total number of data; σx Tr. = trend of σ1, σ2, σ3 axes; σx Pl. = plunge of σ1, σ2, σ3 axes; 1 σ = 1 σ standard deviation; QRfm = quality factor as in the World Stress Map5. R′ = R for normal faulting regime; R′ = 2 -R for strike-slip faulting regime; R′ = 2 + R for reverse faulting regime.
| Sec | n/nt | σ1 Tr |
σ1 Pl |
± 1σ1 | σ2 Tr |
σ2 Pl |
± 1σ2 | σ3 Tr |
σ3 Pl |
± 1σ3 | R′ | ± 1σ | QRfm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 42/56 | 218 | 4 | 19 | 308 | 4 | 20 | 86 | 84 | 19 | 2.5 | 0.3 | B |
| 2 | 56/100 | 48 | 4 | 19 | 139 | 11 | 17 | 301 | 78 | 20 | 2.3 | 0.3 | A |
| 3 | 50/100 | 268 | 14 | 19 | 175 | 11 | 19 | 48 | 72 | 18 | 2.7 | 0.3 | B |
| Deep-SS | 18/18 | 333 | 31 | 19 | 173 | 58 | 15 | 68 | 9 | 20 | 1.1 | 0.5 | B |