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
  CTAO  BHZ  IU  10  -   a 246.90  21.24 ISC       CTA  
  CTAO  BHZ  IU  00  -   a 246.90  21.24 ISC       CTA  
  CTA   BHZ  AU  --  -   a 246.90  21.24 ISC       CTA  
  FORT  BHZ  AU  --  +   a 237.00  40.18 ISC       FORT 
  CASY  BHZ  IU  10  +   a 201.78  65.36 ISC       CASY 
  ATKA  BHZ  AK  --  -   a  12.47  66.59 ISC       ATKA 
  BYRD  BHZ  YT  --  +   a 170.01  74.78 ISC       BYA  
  NICH  BHZ  AK  --  +   a  22.33  82.47 ISC       NICHA
  WAX   BHZ  AK  --  +   a  22.54  83.03 ISC       WAX  
  RDOG  BHZ  AK  --  -   a  10.93  83.34 ISC       RDOG 
  TABL  BHZ  AK  --  +   a  23.10  83.67 ISC       TABL 
  NEA2  BHZ  AK  --  -   a  17.52  83.85 ISC       NEA2 
  COLA  BHZ  IU  10  +   a  17.70  84.41 ISC       COLA 
  TCOL  BHZ  TA  --  +   a  17.70  84.41 ISC       TCOL 
  POKR  BHZ  TA  01  +   a  17.66  84.71 ISC       POKR 
  SCRK  BHZ  AK  --  +   a  19.52  84.99 ISC       SCRK 
  TOLK  BHZ  TA  --  +   a  14.61  86.71 ISC       TOLK 
  214A  BHZ  TA  --  -   a  56.92  88.45 ISC       214A 

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