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
  CHKT  ???  IR      C     221.31   0.10 TAP       CHKT 
  ECBN  ???  IR      C       6.50   0.15 TAP       ECBN 
  EYUL  ???  IR      D     329.17   0.20 TAP       EYUL 
  EHD   ???  IR      D     264.10   0.21 TAP       EHD  
  ECS   ???  IR      D     249.20   0.21 TAP       ECS  
  TWF1  ???  IR      D     325.29   0.22 TAP       TWF1 
  YULB  ???  IR      D     330.50   0.25 TAP       YULB 
  HGSD  ???  IR      C     358.47   0.32 TAP       HGSD 
  EHY   ???  IR      D     342.99   0.35 TAP       EHY  
  ELDTW ???  IR      D     272.81   0.38 TAP       ELDTW
  LONT  ???  IR      C     226.79   0.38 TAP       LONT 
  TWG   ???  IR      C     223.77   0.48 TAP       TWG  
  YUS   ???  IR      D     305.74   0.54 TAP       YUS  
  STYH  ???  IR      D     270.11   0.60 TAP       STYH 
  STYT  ???  IR      D     269.43   0.62 TAP       STYT 
  VWDT  ???  IR      D     335.26   0.64 TAP       VWDT 
  ESL   ???  IR      D     359.98   0.64 TAP       ESL  
  ALS   ???  IR      D     300.48   0.67 TAP       ALS  
  ECL   ???  IR      C     217.84   0.72 TAP       ECL  
  TPUB  ???  IR      D     280.07   0.75 TAP       TPUB 
  SSLB  ???  IR      D     324.47   0.76 TAP       SSLB 
  WTP   ???  IR      D     275.84   0.76 TAP       WTP  
  SGST  ???  IR      C     263.73   0.79 TAP       SGST 
  CHN1  ???  IR      C     271.16   0.83 TAP       CHN1 
  SSD   ???  IR      C     240.37   0.85 TAP       SSD  
  SMLT  ???  IR      D     325.49   0.86 TAP       SMLT 
  WUSB  ???  IR      D     340.55   0.87 TAP       WUSB 
  TWK   ???  IR      C     276.46   0.88 TAP       TWK  
  MASBT ???  IR      C     233.16   0.92 TAP       MASBT
  EAST  ???  IR      C     214.68   0.95 TAP       EAST 
  TAWH  ???  IR      D     211.44   0.97 TAP       TAWH 
  WNT   ???  IR      D     315.82   0.98 TAP       WNT  
  TWM1  ???  IR      C     249.83   0.99 TAP       TWM1 
  SCZT  ???  IR      C     223.52   1.09 TAP       SCZT 
  NSK   ???  IR      C     357.38   1.50 TAP       NSK  

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