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
  MTN   ???  IR      +     134.19   8.65 ISC       MTN  
  KNA   ???  IR      -     156.59   9.69 ISC       KNA  
  TRT   ???  IR      +     265.12  12.08 ISC       TRT  
  WRA   ???  IR      +     145.49  16.00 ISC       WRA  
  WB2   ???  IR      +     145.46  16.00 ISC       WB2  
  ASPA  ???  IR      +     153.35  18.89 ISC       ASPA 
  CTA   ???  IR      +     124.42  24.65 ISC       CTA  
  STK   ???  IR      +     149.98  29.45 ISC       STK  
  SNY   ???  IR      +     358.79  48.43 ISC       SNY  
  GBA   ???  IR      -     293.43  51.20 ISC       GBA  

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