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      -      35.77   0.18 ISC       TWC  
  TWD   ???  IR      +     198.21   0.40 ISC       TWD  
  TATO  ???  IR      +     336.54   0.56 ISC       TATO 
  TWZ   ???  IR      +     347.57   0.65 ISC       TWZ  
  ISI   ???  IR      -      92.84   2.22 ISC       ISI  
  PIP   ???  IR      +     189.85   6.19 ISC       PIP  
  BJI   ???  IR      c     344.56  16.22 ISC       BJI  
  SNY   ???  IR      +       4.62  17.39 ISC       SNY  
  IPM   ???  IR      -     228.37  28.14 ISC       IPM  
  SEM   ???  IR      +     319.88  41.12 ISC       SEM  
  WRA   ???  IR      -     163.36  45.81 ISC       WRA  
  CTA   ???  IR      -     149.54  50.31 ISC       CTA  
  VAN   ???  IR      +     300.27  55.09 ISC       VAN  
  DZM   ???  IR      d     133.16  63.46 ISC       DZM  
  BKR   ???  IR      -     306.46  65.66 ISC       BKR  
  INK   ???  IR      -      22.11  72.78 ISC       INK  
  BBTK  ???  IR      +     306.80  74.02 ISC       BBTK 
  VRI   ???  IR      +     314.20  76.17 ISC       VRI  
  KBA   ???  IR      +     319.30  84.02 ISC       KBA  
  EDM   ???  IR      +      29.55  89.12 ISC       EDM  
  WDC   ???  IR      +      43.36  91.97 ISC       WDC  
  MIN   ???  IR      +      43.14  92.69 ISC       MIN  
  PRI   ???  IR      +      46.13  95.74 ISC       PRI  
  FRI   ???  IR      +      44.99  95.86 ISC       FRI  
  MNA   ???  IR      +      43.09  95.98 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