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
  LIFNC BHZ  ND  00  +   a 180.46   5.91 ISC       LIFNC
  HNR   BHZ  IU  10  +   a 305.95   8.96 ISC       HNR  
  CTAO  BHZ  IU  00  -   a 252.41  20.73 ISC       CTA  
  CTAO  BHZ  IU  10  -   a 252.41  20.73 ISC       CTA  
  CTA   BHZ  AU  --  -   a 252.41  20.73 ISC       CTA  
  MGCD  SHZ  AU  --  +   a 215.94  23.46 ISC       MGCD 
  BKZ   HHZ  NZ  10  -   a 163.25  25.55 ISC       BKZ  
  CMSA  BHZ  AU  --  +   a 226.21  25.81 ISC       CMSA 
  CNB   BHZ  AU  --  +   a 215.07  25.98 ISC       CNB  
  HTT   BHZ  AU  --  +   a 229.19  31.66 ISC       HTT  
  WB7   BHZ  AU  --  +   a 256.25  31.77 ISC       WB7  
  BBOO  BHZ  AU  --  +   a 232.23  33.53 ISC       BBOO 
  WRKA  BHZ  AU  --  +   a 248.26  37.92 ISC       WRKA 
  FORT  BHZ  AU  --  +   a 239.33  39.26 ISC       FORT 
  SBA   BHZ  IU  10  +   a 180.13  63.03 ISC       SBA  
  CASY  BHZ  IU  10  +   a 202.23  63.44 ISC       CASY 
  CCD   BHZ   G  00  +   a 191.45  64.80 ISC       CCD  
  KMI   ???  IR      c     301.80  74.38 BJI       KMI  
  DHY   BHZ  AK  --  +   a  18.96  85.24 ISC       DHY  

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