source 1 3 char 0
month 4 5 short 0
day 6 7 short 0
century_and_year 8 11 long 0
hour 12 13 short 0
minute 14 15 short 0
seconds 16 17 short 1
latitude 18 21 long 2
longitude 22 25 long 2
depth 26 27 short 0
magn_other 28 29 short 2
magn_other_type 30 31 char 0
number_of_arrivals 32 33 short 0
origin_time_std 34 35 short 2
code_relocation 36 36 char 0
depth_negate 37 38 short 0
year_decimal 39 46 double 10