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
  RATZ  ???  IR      d      12.03   0.06 NEIC      RATZ 
  RITZ  ???  IR      c     123.64   0.10 NEIC      RITZ 
  WATZ  ???  IR      d     355.19   0.22 WEL       WATZ 
  OTVZ  ???  IR      d     196.58   0.25 WEL       OTVZ 
  HATZ  ???  IR      c      82.84   0.26 WEL       HATZ 
  NGZ   ???  IR      d     205.67   0.28 WEL       NGZ  
  TWVZ  ???  IR      c     239.40   0.29 WEL       TWVZ 
  WHTZ  ???  IR      d      31.41   0.30 WEL       WHTZ 
  WPVZ  ???  IR      d     210.33   0.32 NEIC      WPVZ 
  WPVZ  ???  IR      d     210.33   0.32 WEL       WPVZ 
  WPVZ  HHZ  NZ  10  -   a 210.33   0.32 ISC       WPVZ 
  TUVZ  ???  IR      d     193.03   0.35 WEL       TUVZ 
  FWVZ  ???  IR      d     205.55   0.37 WEL       FWVZ 
  DRZ   ???  IR      c     203.12   0.38 WEL       DRZ  
  WHVZ  ???  IR      d     200.00   0.38 WEL       WHVZ 
  TRVZ  ???  IR      d     203.39   0.41 WEL       TRVZ 
  WNVZ  ???  IR      d     197.00   0.42 WEL       WNVZ 
  MOVZ  ???  IR      c     180.33   0.48 WEL       MOVZ 
  PKVZ  ???  IR      d     221.06   0.48 WEL       PKVZ 
  MTVZ  ???  IR      d     205.72   0.51 WEL       MTVZ 
  ALRZ  ???  IR      d      51.93   0.58 WEL       ALRZ 
  BHHZ  ???  IR      c     157.22   0.61 WEL       BHHZ 
  BKZ   ???  IR      c     113.05   0.62 WEL       BKZ  
  BKZ   HHZ  NZ  10  -   a 113.05   0.62 ISC       BKZ  
  BKZ   HHZ  NZ  10  -   a 113.05   0.62 ISC       BKZ  
  URZ   HHZ  NZ  10  -   a  58.40   1.25 ISC       URZ  
  URZ   HHZ  NZ  10  -   a  58.40   1.25 ISC       URZ  
  PKE   ???  IR      c     258.39   1.40 WEL       PKE  
  POWZ  ???  IR      c     179.66   1.47 WEL       POWZ 
  PRHZ  ???  IR      c     153.41   1.50 WEL       PRHZ 
  PRGZ  ???  IR      c      90.61   1.66 WEL       PRGZ 
  BFZ   HHZ  NZ  10  -   a 168.01   1.79 ISC       BFZ  

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