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
  SHK   ???  IR      -     222.63   8.01 ISC       SHK  
  JAY   ???  IR      +     177.85  42.96 ISC       JAY  
  KNA   ???  IR      -     192.06  56.93 ISC       KNA  
  DAG   ???  IR      -     354.37  62.04 ISC       DAG  
  NAU   ???  IR      -     203.92  66.62 ISC       NAU  
  JAS   ???  IR      +      54.35  73.18 ISC       JAS  
  MUD   ???  IR      -     333.84  74.48 ISC       MUD  
  YOU   ???  IR      -     172.17  75.01 ISC       YOU  
  NWAO  ???  IR      -     198.96  75.96 ISC       NWAO 
  CAN   ???  IR      -     171.79  76.11 ISC       CAN  
  AVF   ???  IR      +     331.28  84.50 ISC       AVF  
  LSF   ???  IR      +     332.08  85.62 ISC       LSF  
  MFF   ???  IR      +     333.26  85.90 ISC       MFF  
  MNT   ???  IR      -      22.44  89.34 ISC       MNT  

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