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     245.20   2.39 ISC       DZM  
  WB2   ???  IR      +     265.78  32.24 ISC       WB2  
  ASPA  ???  IR      -     258.80  32.32 ISC       ASPA 
  SPA   ???  IR      -     180.00  69.05 ISC       SPA  
  CHTO  ???  IR      +     295.07  79.03 ISC       CHTO 
  PRS   ???  IR      +      49.37  87.19 ISC       PRS  
  BRK   ???  IR      +      47.68  87.31 ISC       BRK  
  PRI   ???  IR      +      49.81  87.61 ISC       PRI  
  WDC   ???  IR      +      45.21  88.45 ISC       WDC  
  ORV   ???  IR      +      46.50  88.65 ISC       ORV  
  FRI   ???  IR      +      49.42  88.68 ISC       FRI  
  CMB   ???  IR      +      48.25  88.69 ISC       CMB  
  MNA   ???  IR      +      48.70  90.43 ISC       MNA  

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