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
  OIS   ???  IR      +     310.28   2.71 ISC       OIS  
  WKU   ???  IR      +     309.96   2.86 ISC       WKU  
  MAT   ???  IR      +       4.32   4.17 ISC       MAT  
  SHL   ???  IR      -     272.51  40.51 ISC       SHL  
  SVW   ???  IR      +      34.98  51.00 ISC       SVW  
  NDI   ???  IR      -     282.82  51.73 ISC       NDI  
  TNN   ???  IR      -      29.80  52.87 ISC       TNN  
  PJD   ???  IR      -      30.09  54.73 ISC       PJD  
  SCM   ???  IR      -      34.01  54.97 ISC       SCM  
  BLR   ???  IR      -      31.92  55.53 ISC       BLR  
  QUE   ???  IR      -     288.40  59.55 ISC       QUE  
  MBC   ???  IR      +      15.35  61.81 ISC       MBC  
  RES   ???  IR      +      13.20  67.82 ISC       RES  
  BLC   ???  IR      +      21.38  74.81 ISC       BLC  
  BMO   ???  IR      +      44.81  77.29 ISC       BMO  
  SES   ???  IR      +      37.67  77.64 ISC       SES  

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