Official Journal of the Asia Oceania Geosciences Society (AOGS)
Table 4 Homogeneity of the study region shown through estimated b-values for 21 city-circle sub-catalogs
Spatial region | Total number of events \(\left( {M \ge 4.5} \right)\) | Number of large \(\left( {M \ge 6.5} \right)\) earthquakes | Maximum magnitude | Estimated b-value | Coefficient of Determination (R2) in G–R frequency–magnitude linear regression model |
|---|---|---|---|---|---|
Palu | 1182 | 06 | 7.9 | 0.9870 | 0.9869 |
Makassar | 144 | 01 | 6.9 | 1.0868 | 0.9415 |
Manado | 5281 | 21 | 7.5 | 1.2922 | 0.9936 |
Kendari | 322 | 03 | 7.5 | 0.8924 | 0.9701 |
Bitung | 5540 | 22 | 7.5 | 1.2778 | 0.9927 |
Gorontalo | 2266 | 09 | 7.9 | 1.0470 | 0.9826 |
Palopo | 626 | 03 | 7.0 | 1.1387 | 0.9933 |
Bau-Bau | 216 | 02 | 7.5 | 0.8744 | 0.9383 |
Luwuk | 2419 | 08 | 7.7 | 1.0910 | 0.9780 |
Toli-toli | 1578 | 11 | 7.9 | 1.0114 | 0.9900 |
Pare-pare | 333 | 01 | 6.9 | 1.2598 | 0.9564 |
Poso | 1503 | 09 | 7.9 | 1.0257 | 0.9887 |
Bone | 225 | 02 | 6.9 | 1.1066 | 0.9814 |
Kolaka | 426 | 03 | 7.5 | 0.9636 | 0.9704 |
Buton | 200 | 02 | 7.5 | 0.8611 | 0.9399 |
Watampone | 292 | 02 | 6.9 | 1.1631 | 0.9844 |
Polewali | 461 | 02 | 6.9 | 1.1916 | 0.9946 |
Donggala | 1197 | 07 | 7.9 | 0.9948 | 0.9821 |
Taliabu | 2056 | 08 | 7.7 | 1.0615 | 0.9777 |
Mamuju | 580 | 03 | 7.4 | 1.0509 | 0.9897 |
Morowali | 973 | 04 | 7.6 | 0.9880 | 0.9665 |