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
  BOG   ???  IR      C     202.57   2.38 BOG       BOG  
  HOBC  ???  IR      c     230.52   3.86 NEIC      HOBC 
  AZUC  ???  IR      c     223.79   4.31 NEIC      AZUC 
  CLMC  ???  IR      c     229.39   4.49 NEIC      CLMC 
  JEF   S?Z  IR      D     291.46   6.60 CASC      JEF  
  UPA   S?Z  IR      D     289.07   6.67 CASC      UPA  
  ECO2  S?Z  IR      D     291.36   6.93 CASC      ECO2 
  AZU   S?Z  IR      D     278.12   7.13 CASC      AZU  
  WVT   ???  IR      d     337.30  32.11 NEIC      WVT  
  LTX   ???  IR      c     311.70  36.43 NEIC      LTX  
  WMOK  ???  IR      d     323.16  36.45 NEIC      WMOK 
  TUC   ???  IR      d     310.97  43.22 NEIC      TUC  
  EYMN  ???  IR      d     342.22  43.85 NEIC      EYMN 
  ISCO  ???  IR      d     323.38  43.88 NEIC      ISCO 
  KNB   ???  IR      d     315.64  46.95 NEIC      KNB  
  MVU   ???  IR      d     317.72  47.30 NEIC      MVU  
  HWUT  ???  IR      d     321.58  48.57 NEIC      HWUT 
  DUG   ???  IR      d     319.31  48.59 NEIC      DUG  
  AHID  ???  IR      d     323.10  48.96 NEIC      AHID 
  TPNV  ???  IR      d     313.82  49.34 NEIC      TPNV 
  ELK   ???  IR      d     318.67  50.45 NEIC      ELK  
  BOZ   ???  IR      d     325.77  50.96 NEIC      BOZ  
  HLID  ???  IR      d     322.17  51.41 NEIC      HLID 
  WVOR  ???  IR      d     318.95  53.50 NEIC      WVOR 
  VNA3  ???  IR      c     163.16  88.19 NEIC      VNA3 
  VNA2  ???  IR      c     162.55  88.71 NEIC      VNA2 

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