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
  PVC   ???  IR      c     330.76   1.63 ISC       PVC  
  DZM   ???  IR      d     220.80   3.84 ISC       DZM  
  BRS   ???  IR      -     238.41  17.11 ISC       BRS  
  CTA   ???  IR      +     263.74  21.58 ISC       CTA  
  YOU   ???  IR      -     226.65  23.81 ISC       YOU  
  STK   ???  IR      -     237.51  27.81 ISC       STK  
  ASPA  ???  IR      +     255.90  33.06 ISC       ASPA 
  MTN   ???  IR      +     274.00  37.02 ISC       MTN  
  MBL   ???  IR      -     258.76  46.19 ISC       MBL  
  SPA   ???  IR      +     180.00  70.95 ISC       SPA  
  WDC   ???  IR      +      45.14  86.87 ISC       WDC  
  CMB   ???  IR      +      48.17  87.18 ISC       CMB  
  MNA   ???  IR      +      48.59  88.93 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