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
  ROCH  ???  IR      c     144.45   0.21 ISC       ROCH 
  PEL   ???  IR      d     130.94   0.52 ISC       PEL  
  SAN   ???  IR      d     147.60   0.77 ISC       SAN  
  BACH  ???  IR      d     134.79   0.78 ISC       BACH 
  TACH  ???  IR      c     167.90   0.87 ISC       TACH 
  FCH   ???  IR      d     126.09   0.90 ISC       FCH  
  PCH   ???  IR      c     146.81   0.98 ISC       PCH  
  LNV   ???  IR      c     190.41   1.17 ISC       LNV  
  CHCH  ???  IR      c     159.67   1.21 ISC       CHCH 
  MDZ   ???  IR      -      93.05   1.94 ISC       MDZ  
  RTCB  ???  IR      -      57.28   2.38 ISC       RTCB 
  RTCV  ???  IR      -      67.79   2.40 ISC       RTCV 
  RTLL  ???  IR      -      57.91   2.71 ISC       RTLL 
  CFA   ???  IR      -      65.05   2.75 ISC       CFA  
  TCA   ???  IR      +      77.07   5.76 ISC       TCA  
  SLA   ???  IR      +      33.05   9.45 ISC       SLA  
  BUL   ???  IR      +     112.01  87.12 ISC       BUL  

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