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
  DZM   ???  IR      c     220.92   4.17 ISC       DZM  
  NOU   ???  IR      c     218.76   4.35 ISC       NOU  
  BRS   ???  IR      -     238.05  17.43 ISC       BRS  
  CTA   ???  IR      -     263.12  21.84 ISC       CTA  
  CTAO  ???  IR      -     263.12  21.84 ISC       CTAO 
  PMG   ???  IR      -     290.66  23.52 ISC       PMG  
  WB2   ???  IR      -     262.34  33.02 ISC       WB2  
  WRA   ???  IR      -     262.34  33.04 ISC       WRA  
  ASPA  ???  IR      -     255.55  33.35 ISC       ASPA 
  WBN   ???  IR      -     251.68  40.05 ISC       WBN  
  NAU   ???  IR      +     256.07  50.31 ISC       NAU  
  SPA   ???  IR      +     180.00  71.19 ISC       SPA  
  LZH   ???  IR      +     311.97  82.62 ISC       LZH  

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