event     event_type                sta       cast      date           time      lat       lon       depth_w     activity_and_comments                depth       press    bot      
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   15          14.39    10       
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   45          46.31    9        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   75          74.74    8        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   100         100.58   7        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   200         200.24   6        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   200         200.14   5        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   300         302.20   4        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   300         301.37   3        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   500         503.71   2        
16        CTD_cast                  5         3         20070811       0744      23.737    -159.175  4722        nd                                   500         504.33   1