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
  QPS   ???  IR      -     161.84   0.13 ISC       QPS  
  PTCR  ???  IR      +     315.95   0.36 ISC       PTCR 
  CDM   ???  IR      -      86.17   0.41 ISC       CDM  
  HDC2  ???  IR      +       6.42   0.50 ISC       HDC2 
  IRZ2  ???  IR      +      31.70   0.52 ISC       IRZ2 
  EPA   ???  IR      +     317.70   0.62 ISC       EPA  
  POA2  ???  IR      +     353.25   0.65 ISC       POA2 
  IDC   ???  IR      +     159.65   0.86 ISC       IDC  
  CAO   ???  IR      +     280.78   0.93 ISC       CAO  
  VACR  ???  IR      +     332.19   1.06 ISC       VACR 
  AR6   ???  IR      d     321.59   1.17 ISC       AR6  
  ACR   ???  IR      c     131.09   1.32 ISC       ACR  
  UPA   ???  IR      -      96.38   4.61 ISC       UPA  

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