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
  SHL   ???  IR      C     281.47  45.56 ISC       SHL  
  WB2   ???  IR      -     190.90  46.00 ISC       WB2  
  WRA   ???  IR      +     190.91  46.00 ISC       WRA  
  ASPA  ???  IR      +     190.55  49.72 ISC       ASPA 
  GBA   ???  IR      +     272.32  62.08 ISC       GBA  
  KOD   ???  IR      -     268.83  63.34 ISC       KOD  
  POO   ???  IR      D     278.85  63.55 ISC       POO  
  QUE   ???  IR      -     293.21  65.92 ISC       QUE  
  FHC   ???  IR      +      51.32  76.12 ISC       FHC  
  WDC   ???  IR      +      51.10  77.22 ISC       WDC  
  ORV   ???  IR      +      51.74  78.36 ISC       ORV  

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