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
  MHGZ  ???  IR      c     229.15   0.69 WEL       MHGZ 
  KNZ   ???  IR      c     245.32   0.78 WEL       KNZ  
  MWZ   ???  IR      c     293.45   0.91 WEL       MWZ  
  SNGZ  ???  IR      c     264.79   0.98 WEL       SNGZ 
  WHHZ  ???  IR      c     249.88   1.12 WEL       WHHZ 
  HAZ   ???  IR      c     325.96   1.13 WEL       HAZ  
  MXZ   ???  IR      c     349.05   1.16 WEL       MXZ  
  RAHZ  ???  IR      c     259.05   1.19 WEL       RAHZ 
  URZ   ???  IR      c     290.37   1.24 WEL       URZ  
  URZ   HHZ  NZ  10  +   a 290.37   1.24 ISC       URZ  
  ARHZ  ???  IR      d     245.03   1.36 WEL       ARHZ 
  MCHZ  ???  IR      d     242.54   1.65 WEL       MCHZ 
  RRRZ  ???  IR      c     281.86   1.66 WEL       RRRZ 
  KAHZ  ???  IR      d     229.94   1.72 WEL       KAHZ 
  PXZ   ???  IR      c     224.56   1.88 WEL       PXZ  
  KRHZ  ???  IR      c     240.59   1.96 WEL       KRHZ 
  BHHZ  ???  IR      c     247.30   2.11 WEL       BHHZ 
  WNVZ  ???  IR      d     253.99   2.41 WEL       WNVZ 
  ODZ   HHZ  NZ  10  -   a 220.49   8.67 ISC       ODZ  

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