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
  TWC   ???  IR      -     253.75   0.82 ISC       TWC  
  TWZ   ???  IR      -     284.12   1.06 ISC       TWZ  
  TWD   ???  IR      +     233.53   1.27 ISC       TWD  
  CVP   ???  IR      -     186.83   7.15 ISC       CVP  
  PPR   ???  IR      -     194.88  15.46 ISC       PPR  
  KKM   ???  IR      +     199.50  19.70 ISC       KKM  
  VLA   ???  IR      -      20.23  19.73 ISC       VLA  
  CHG   ???  IR      -     259.47  22.85 ISC       CHG  
  SHL   ???  IR      d     278.11  27.88 ISC       SHL  
  YAK   ???  IR      -       5.39  37.48 ISC       YAK  
  SEM   ???  IR      -     319.23  41.41 ISC       SEM  
  GBA   ???  IR      -     263.93  44.01 ISC       GBA  
  MBL   ???  IR      +     183.75  45.81 ISC       MBL  
  WRA   ???  IR      -     164.70  45.93 ISC       WRA  
  WB2   ???  IR      -     164.69  45.93 ISC       WB2  
  NRI   ???  IR      +     344.58  49.08 ISC       NRI  

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