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
  ROCH  ???  IR      +     140.75   1.50 ISC       ROCH 
  JACH  ???  IR      +     123.93   1.57 ISC       JACH 
  LCCH  ???  IR      -     163.95   1.73 ISC       LCCH 
  PEL   ???  IR      +     137.59   1.81 ISC       PEL  
  TACH  ???  IR      +     151.41   2.10 ISC       TACH 
  FCH   ???  IR      +     134.56   2.18 ISC       FCH  
  LNV   ???  IR      +     164.16   2.23 ISC       LNV  
  PCH   ???  IR      -     143.20   2.27 ISC       PCH  
  RTBS  ???  IR      +      87.01   2.30 ISC       RTBS 
  CHCH  ???  IR      +     149.78   2.46 ISC       CHCH 
  RTRS  ???  IR      +      55.32   2.82 ISC       RTRS 
  RTCB  ???  IR      +      84.42   2.86 ISC       RTCB 
  ZON   ???  IR      +      85.81   2.96 ISC       ZON  
  MDZ   ???  IR      +     111.88   2.98 ISC       MDZ  
  RTLL  ???  IR      -      82.25   3.17 ISC       RTLL 
  SPA   ???  IR      -     180.00  58.37 ISC       SPA  

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