Black dots -> compressions (C,c,+,U,u)
White dots -> dilatations (D,d,-)
Green dot  -> T-axis
Red dot    -> P-axis

  sta  chan net loc pol a/m   azi   dist author    irsta
  PVC   ???  IR      d     359.62   2.39 ISC       PVC  
  DZM   ???  IR      d     222.21   2.60 ISC       DZM  
  SGE   ???  IR      +      75.96   9.43 ISC       SGE  
  CTA   ???  IR      +     266.33  20.73 ISC       CTA  
  WRA   ???  IR      +     264.40  31.90 ISC       WRA  
  ASPA  ???  IR      -     257.37  32.09 ISC       ASPA 
  MAT   ???  IR      d     333.07  63.16 ISC       MAT  
  SPA   ???  IR      -     180.00  69.98 ISC       SPA  
  CN2   ???  IR      -     329.30  74.79 ISC       CN2  
  KMI   ??Z  IR      +     302.46  78.03 ISC       KMI  
  LZH   ??Z  IR      -     312.52  82.70 ISC       LZH  
  SHL   ???  IR      C     298.45  87.02 ISC       SHL  

sta    - Station code (FDSN)
chan   - channel code
net    - Network code (FDSN)
loc    - Location code (FDSN)
pol    - Polarity
a/m    - Automatic or manual pick
azi    - Event to station azimuth (in degrees)
dist   - Event to station distance (in degrees)
author - Author of the polarity
irsta  - International registry station code