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
  KHO   ???  IR      -       9.62   1.33 ISC       KHO  
  CEP   ???  IR      -     166.91   2.41 ISC       CEP  
  GAR   ???  IR      -     345.49   2.92 ISC       GAR  
  CPA   ???  IR      -     177.45   3.19 ISC       CPA  
  SARP  ???  IR      -     164.10   4.40 ISC       SARP 
  NRN   ???  IR      +      33.76   6.43 ISC       NRN  
  FRU   ???  IR      +      20.31   7.14 ISC       FRU  
  MHI   ???  IR      +     274.29   9.52 ISC       MHI  
  SEM   ???  IR      +      21.78  15.64 ISC       SEM  
  NVS   ???  IR      +      20.13  20.41 ISC       NVS  
  GBA   ???  IR      -     164.56  23.15 ISC       GBA  
  BNG   ???  IR      +     249.74  57.73 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