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
  AAI   ???  IR      -     141.66   4.56 ISC       AAI  
  WRA   ???  IR      -     156.50  21.61 ISC       WRA  
  KGM   ???  IR      +     275.53  22.14 ISC       KGM  
  IPM   ???  IR      +     280.88  24.73 ISC       IPM  
  CTA   ???  IR      +     135.42  28.52 ISC       CTA  
  CTAO  ???  IR      +     135.42  28.52 ISC       CTAO 
  CHG   ???  IR      -     307.37  32.02 ISC       CHG  
  BOD   ???  IR      +     352.90  58.44 ISC       BOD  
  NRI   ???  IR      +     347.12  73.75 ISC       NRI  
  ILT   ???  IR      +      18.72  77.82 ISC       ILT  
  BKR   ???  IR      +     311.84  83.97 ISC       BKR  
  INK   ???  IR      +      21.46  94.19 ISC       INK  

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