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
  GBZ   ???  IR      +     234.28   3.54 ISC       GBZ  
  VUN   ???  IR      -     358.05  16.13 ISC       VUN  
  DZM   ???  IR      c     314.23  16.39 ISC       DZM  
  COO   ???  IR      +     271.43  23.18 ISC       COO  
  BRS   ???  IR      +     279.64  23.52 ISC       BRS  
  CNB   ???  IR      +     258.90  24.36 ISC       CNB  
  CTA   ???  IR      c     287.36  32.22 ISC       CTA  
  ADE   ???  IR      +     257.01  33.05 ISC       ADE  
  ASPA  ???  IR      +     272.73  40.58 ISC       ASPA 
  WB2   ???  IR      +     278.02  41.92 ISC       WB2  
  WRA   ???  IR      +     278.01  41.93 ISC       WRA  
  JAY   ???  IR      -     303.00  47.62 ISC       JAY  
  SPA   ???  IR      +     180.00  55.98 ISC       SPA  
  CPH   ???  IR      -      27.94  58.48 ISC       CPH  
  DES   ???  IR      -      28.55  58.55 ISC       DES  
  KIH   ???  IR      -      28.09  58.55 ISC       KIH  
  AHA   ???  IR      -      28.66  58.63 ISC       AHA  
  NPH   ???  IR      -      28.62  58.66 ISC       NPH  
  MLH   ???  IR      -      28.48  58.69 ISC       MLH  
  PLL   ???  IR      -      28.38  58.69 ISC       PLL  

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