| New Search |
| Fault Name | State |
|---|---|
| Black Mesa fault zone | New Mexico |
| GEOMETRY | |
| Dip (degrees) | 50/40/60 |
| Dip direction | NW |
| Sense of slip | normal |
| Rupture top (km) | 0 |
| Rupture bottom (km) | 15 |
| Rake (degrees) | -90 |
| Length (km) | 18 |
| MODEL VALUES | |
|---|---|
| Probability of activity | 1 |
| Minimum magnitude | 6.5 |
| Maximum magnitude | 6.54 |
| b-value | 0.8 |
| Assigned Dip | Fault-Parallel Slip Rate | Width | Annual Rate | a-value | Branch Weight |
|---|---|---|---|---|---|
| 40 | 0.03 | 23.3 | 5.42e-05 | 0.980 | 0.2 |
| 50 | 0.03 | 19.6 | 3.81e-05 | 0.827 | 0.6 |
| 60 | 0.02 | 17.3 | 2.98e-05 | 0.721 | 0.2 |
| Comments |
|---|
| Preferred vertical slip rate from Wong and others (1995), which is based, by analogy, on the lack of documented late Quaternary displacement. Dip of fault changed to 50? based on redefined regional default value (Lund, 2006). |
| Selected References |
|---|
| Wong, I., Kelson, K., Olig, S., Kolbe, T., Hemphill-Haley, M., Bott, J., Green, R., Kanakari, H., Sawyer, J., Silva, W., Stark, C., Haraden, C., Fenton, C., Unruh, J., Gardner, J., Reneau, S., and House, L., 1995, Seismic hazards evaluation of the Los Alamos National Laboratory: Technical report to Los Alamos National Laboratory, Los Alamos, New Mexico, February 24, 1995, 3 volumes, 12 pls., 16 appen. Lund, W.R., ed., 2006, Basin and Range Province Earthquake Working Group seismic-hazard recommendations to the U.S. Geological Survey National Seismic Hazard Mapping Program: Utah Geological Survey Open-File Report 477, 23 p, ugspub.nr.utah.gov/publications/open_file_reports/OFR-477.pdf. |