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
  KEF4  HHZ  HL  --  -   a  31.75   0.35 ISC       KEF4 
  VLS   HHZ  HL  --  -   a  55.41   0.38 ISC       VLS  
  FSK   HHZ  HP  --  -   a  30.33   0.58 ISC       FSK  
  PVO   HHZ  HP  --  -   a  57.67   1.24 ISC       PVO  
  AGRP  HHZ  CL  00  -   a  69.75   1.28 ISC       AGRP 
  VVK   EHZ  HP  --  +   a  69.68   1.36 ISC       VVK  
  ROD3  HHZ  CL  00  +   a  75.00   1.39 ISC       ROD3 
  AIOA  EHZ  CL  00  -   a  80.47   1.49 ISC       AIOA 
  STON  BHZ  CR  --  -   a 339.60   5.26 ISC       STON 
  BLKB  HHZ  BS  --  +   a  17.64   5.96 ISC       BLKB 

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