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
  CHG   ???  IR      -     187.61   7.67 ISC       CHG  
  TSI   ???  IR      -     183.72  22.87 ISC       TSI  
  PGP   ???  IR      +     119.24  23.48 ISC       PGP  
  PSI   ???  IR      +     182.72  23.54 ISC       PSI  
  SEM   ???  IR      +     332.86  28.32 ISC       SEM  
  NVS   ???  IR      +     341.03  30.91 ISC       NVS  
  MHI   ???  IR      -     296.04  35.76 ISC       MHI  
  SVE   ???  IR      -     328.11  41.31 ISC       SVE  
  NRI   ???  IR      +     353.92  43.57 ISC       NRI  
  BKR   ???  IR      +     303.39  48.39 ISC       BKR  
  OBN   ???  IR      -     320.34  53.63 ISC       OBN  
  WRA   ???  IR      +     140.70  56.89 ISC       WRA  
  WB2   ???  IR      +     140.69  56.90 ISC       WB2  
  MLR   ???  IR      -     309.20  60.79 ISC       MLR  
  DAG   ???  IR      +     347.63  70.60 ISC       DAG  
  BNG   ???  IR      -     270.19  80.41 ISC       BNG  

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