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
  SNAA  BHZ  GE  --  +   a 154.69  16.65 ISC       SNAA 
  QSPA  BHZ  IU  70  +   a 179.98  32.29 ISC       QSPA 
  QSPA  HHZ  IU  10  +   a 179.98  32.29 ISC       QSPA 
  QSPA  BHZ  IU  00  +   a 179.98  32.29 ISC       QSPA 
  QSPA  BHZ  IU  80  +   a 179.98  32.29 ISC       QSPA 
  VNDA  BHZ  GT  00  +   a 182.30  44.71 ISC       VNDA 
  LPAZ  BHZ  GT  00  +   a 304.75  52.17 ISC       LPAZ 
  SAML  BHZ  IU  00  +   a 313.92  56.75 ISC       SAML 
  LSZ   BHZ  IU  00  +   a  66.26  58.30 ISC       LSZ  
  LSZ   HHZ  IU  10  +   a  66.26  58.30 ISC       LSZ  
  LSZ   BHZ  IU  10  +   a  66.26  58.30 ISC       LSZ  
  SDV   BHZ  IU  10  +   a 313.90  75.96 ISC       SDV  

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