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
  SLR   ???  IR      +     276.31  25.86 ISC       SLR  
  BUL   ???  IR      -     287.72  27.98 ISC       BUL  
  GBA   ???  IR      -      26.60  49.26 ISC       GBA  
  SNA   ???  IR      +     202.33  50.12 ISC       SNA  
  BNG   ???  IR      -     307.47  51.40 ISC       BNG  
  IPM   ???  IR      -      57.42  55.29 ISC       IPM  
  SPA   ???  IR      +     180.00  58.31 ISC       SPA  
  SHL   ???  IR      d      34.39  66.10 ISC       SHL  
  DSH   ???  IR      +       9.73  70.91 ISC       DSH  
  GRS   ???  IR      -     351.31  71.69 ISC       GRS  
  KRV   ???  IR      -     351.49  72.80 ISC       KRV  
  PYA   ???  IR      +     349.70  76.60 ISC       PYA  
  MLR   ???  IR      +     338.49  81.99 ISC       MLR  
  SEM   ???  IR      +      14.69  84.45 ISC       SEM  
  KBA   ???  IR      +     331.82  87.87 ISC       KBA  

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