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
  NEM   ???  IR      c     234.38   1.42 ISC       NEM  
  KUSJ  ???  IR      c     239.11   2.03 ISC       KUSJ 
  ASAJ  ???  IR      c     270.68   3.30 ISC       ASAJ 
  HOOJ  ???  IR      c     239.20   3.35 ISC       HOOJ 
  MAT   ???  IR      c     224.96  10.23 ISC       MAT  
  PNT   ???  IR      +      48.92  60.09 ISC       PNT  
  EDM   ???  IR      +      42.66  61.08 ISC       EDM  
  WDC   ???  IR      +      58.38  63.43 ISC       WDC  
  WRA   ???  IR      +     193.35  64.87 ISC       WRA  
  FFC   ???  IR      +      36.62  65.35 ISC       FFC  
  CMB   ???  IR      +      59.49  66.31 ISC       CMB  
  PRNI  ???  IR      -     306.31  83.43 ISC       PRNI 

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