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
  PINNC BHZ  ND  00  -   a 206.90   3.38 ISC       PINNC
  PINNC HHZ  ND  00  -   a 206.90   3.38 ISC       PINNC
  NOUC  BHZ   G  00  -   a 225.83   3.62 ISC       NOUC 
  ONTNC BHZ  ND  00  -   a 222.00   3.67 ISC       ONTNC
  NFK   BHZ  AU  --  +   a 186.20   9.47 ISC       NFK  
  WRAB  S?Z  IR      C     263.42  32.67 MOS       WRAB 
  AS31  BHZ  AU  --  -   a 256.53  32.92 ISC       AS31 
  MAJO  BHZ  IU  10  -   a 332.35  63.00 ISC       MAJO 
  YSS   S?Z  IR      C     341.17  70.37 MOS       YSS  
  GTA   ???  IR      c     313.49  87.27 BJI       GTA  

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