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
  ANTU  ??Z  IR      C     139.97   0.13 GUC       ANTU 
  DSCH  S?Z  IR      C      61.83   0.15 GUC       DSCH 
  FSR   ??Z  IR      C      92.36   0.17 GUC       FSR  
  CLCH  B?Z  IR      D      65.20   0.18 GUC       CLCH 
  PCH   S?Z  IR      C     129.38   0.23 GUC       PCH  
  PEL   S?Z  IR      D       6.74   0.33 GUC       PEL  
  FCH   S?Z  IR      D      68.84   0.40 GUC       FCH  
  CHCH  S?Z  IR      C     171.90   0.47 GUC       CHCH 
  ROCH  S?Z  IR      D     334.73   0.55 GUC       ROCH 
  LMEL  B?Z  IR      D     130.56   0.58 GUC       LMEL 
  JACH  S?Z  IR      D       8.44   0.80 GUC       JACH 
  IHA   S?Z  IR      C     300.00   0.88 GUC       IHA  
  CICH  S?Z  IR      C     163.09   0.89 GUC       CICH 
  SFDO  S?Z  IR      C     191.55   1.16 GUC       SFDO 
  CHNG  S?Z  IR      C     337.55   1.71 GUC       CHNG 
  CMCH  S?Z  IR      C     354.23   2.30 GUC       CMCH 
  VNA3  ???  IR      +     158.12  49.44 AWI       VNA3 
  VNA1  ???  IR      -     157.21  49.73 AWI       VNA1 
  VNA2  ???  IR      +     157.47  50.08 AWI       VNA2 
  SNAA  ???  IR      +     158.06  51.66 AWI       SNAA 

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