Moment tensors. The colored quadrant indicates compressional motion. the current year is indicated by the color red.

Orientation of maximum horizontal compressive stress following the convention of Zoback (1992). Red indicates normal faulting, blue thrust faulting and green strike-slip faulting. A combination of colors indicates oblique faulting.

The classification of the type of faulting is based on the plunge of the P (pressure), T(tension) and B (null axes) as
    P/S1-axis    B/S2-axis          T/S3-axis    Regime    SH-azimuth           
      pl > 52                        pl < 35       NF      azim. of B-axis      
 40 < pl < 52                        pl < 20       NS      azim. of T-axis +90  
      pl < 40     pl > 45            pl < 20       SS      azim. of T-axis +90  
      pl < 20     pl > 45            pl < 40       SS      azim. of P-axis      
      pl < 20                   40 < pl < 52       TS      azim. of P-axis      
      pl < 35                        pl > 52       TF      azim. of P-axis  

Last changed Sat May 11 06:43:24 PM CDT 2024