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
  SNZO  HHZ  IU  10  -   a  25.82   0.55 ISC       SNZO 
  SNZO  BHZ  IU  00  -   a  25.82   0.55 ISC       SNZO 
  SNZO  BHZ  IU  10  -   a  25.82   0.55 ISC       SNZO 
  KHZ   HHZ  NZ  10  +   a 225.60   0.88 ISC       KHZ  
  BFZ   HHZ  NZ  10  +   a  51.92   1.80 ISC       BFZ  
  BKZ   HHZ  NZ  10  -   a  32.05   3.09 ISC       BKZ  
  RPZ   HHZ  NZ  10  +   a 231.00   3.11 ISC       RPZ  
  ODZ   HHZ  NZ  10  -   a 218.81   4.23 ISC       ODZ  
  WRAB  BHZ  II  00  +   a 290.40  40.21 ISC       WRAB 
  CASY  BHZ  IU  00  +   a 212.72  42.22 ISC       CASY 
  SNAA  BHZ  GE  --  +   a 180.96  66.82 ISC       SNAA 
  VNA3  BHZ  AW  --  +   a 178.58  67.23 ISC       VNA3 

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