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
  DZM   ???  IR      c     159.37  12.49 ISC       DZM  
  CTA   ???  IR      -     235.25  17.78 ISC       CTA  
  BRS   ???  IR      +     205.27  18.93 ISC       BRS  
  RMQ   ???  IR      -     215.67  20.19 ISC       RMQ  
  COO   ???  IR      -     203.07  22.10 ISC       COO  
  JAY   ???  IR      +     289.05  22.29 ISC       JAY  
  WRA   ???  IR      +     246.94  28.06 ISC       WRA  
  TOO   ???  IR      -     205.74  30.79 ISC       TOO  
  PSI   ???  IR      +     278.28  63.87 ISC       PSI  
  SPA   ???  IR      +     180.00  79.70 ISC       SPA  
  GCC   ???  IR      +      51.25  85.43 ISC       GCC  
  BKS   ???  IR      +      50.38  85.49 ISC       BKS  
  PRS   ???  IR      +      52.06  85.72 ISC       PRS  
  MHC   ???  IR      +      51.03  85.79 ISC       MHC  
  WDC   ???  IR      +      47.72  86.05 ISC       WDC  
  LLA   ???  IR      +      51.88  86.13 ISC       LLA  
  MIN   ???  IR      +      48.15  86.66 ISC       MIN  
  CMB   ???  IR      +      50.64  86.94 ISC       CMB  
  FRI   ???  IR      +      51.78  87.18 ISC       FRI  

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