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
  PVC   ???  IR      c     317.42   1.72 ISC       PVC  
  DZM   ???  IR      c     223.05   4.20 ISC       DZM  
  BRS   ???  IR      -     238.47  17.50 ISC       BRS  
  RMQ   ???  IR      -     244.99  20.53 ISC       RMQ  
  CTA   ???  IR      -     263.33  21.96 ISC       CTA  
  CMS   ???  IR      +     235.23  24.71 ISC       CMS  
  WB5   ???  IR      -     262.58  33.13 ISC       WB5  
  WRA   ???  IR      -     262.46  33.16 ISC       WRA  
  ASPA  ???  IR      -     255.69  33.45 ISC       ASPA 
  MTN   ???  IR      +     273.64  37.37 ISC       MTN  
  KMI   ???  IR      +     301.73  78.39 ISC       KMI  
  PRS   ???  IR      +      49.19  85.33 ISC       PRS  
  PRI   ???  IR      +      49.62  85.74 ISC       PRI  
  WDC   ???  IR      +      45.00  86.51 ISC       WDC  
  ORV   ???  IR      +      46.28  86.73 ISC       ORV  
  CMB   ???  IR      +      48.04  86.80 ISC       CMB  
  FRI   ???  IR      +      49.21  86.81 ISC       FRI  
  INK   ???  IR      -      18.27  96.25 ISC       INK  

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