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
  LHG   ???  IR      +      51.57   0.41 ISC       LHG  
  PSG   ???  IR      -     108.87   0.74 ISC       PSG  
  ITG   ???  IR      -      57.88   0.76 ISC       ITG  
  TER   ???  IR      +      81.97   0.81 ISC       TER  
  MMG   ???  IR      +      66.65   0.88 ISC       MMG  
  REC   ???  IR      +      75.49   0.99 ISC       REC  
  IXG   ???  IR      -      90.86   1.04 ISC       IXG  
  SBG   ???  IR      -     330.89   1.07 ISC       SBG  
  SLP   ???  IR      -      65.07   1.31 ISC       SLP  
  YUP   ???  IR      +      89.39   1.66 ISC       YUP  
  MRL   ???  IR      -      63.18   1.98 ISC       MRL  
  LPS   ???  IR      -      87.15   2.28 ISC       LPS  
  BUS   ???  IR      d     120.41   8.88 ISC       BUS  
  EKA   ???  IR      +      35.80  77.54 ISC       EKA  

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