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
  SHO   S?Z  IR      D     243.73   1.12 MOS       SHO  
  YUK   B?Z  IR      D     259.49   1.73 MOS       YUK  
  NMR   S?Z  IR      D     241.72   2.06 MOS       NMR  
  RUSJ  S?Z  IR      D     263.83   2.15 MOS       RUSJ 
  ERM   B?Z  IR      D     239.25   4.39 MOS       ERM  
  SKR   S?Z  IR      D      37.44   8.27 MOS       SKR  
  MAJO  S?Z  IR      C     227.66  10.92 MOS       MAJO 
  ULN   S?Z  IR      C     291.76  28.50 MOS       ULN  
  MK31  B?Z  IR      D     297.44  44.98 MOS       MK31 
  AAK   S?Z  IR      C     295.63  51.78 MOS       AAK  
  KBZ   S?Z  IR      D     311.91  69.96 MOS       KBZ  

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