Sismometry or Seismometry: How To spell?

The word Sismometry is misspelled against Seismometry, a noun meaning "The mensuration of such phenomena of earthquakes as can be expressed in numbers, or by their relation to the coordinates of space."

Word contains consecutive vowels 'EI' in between alphabets s & smometry is misspelled as 'I' as letter 'E' is phonetically igno
Wrong Spelling:  s-i-smometry 
Correct Spelling:  s-ei-smometry 
Find more incorrect spellings of Seismometry to spell right way.