quake vs tremble

quake

verb
  • To tremble or shake. 

  • To be in a state of fear, shock, amazement, etc., such as might cause one to tremble. 

noun
  • An earthquake, a trembling of the ground with force. 

  • A trembling or shaking. 

tremble

verb
  • To shake, quiver, or vibrate. 

  • To fear; to be afraid. 

noun
  • A shake, quiver, or vibration. 

How often have the words quake and tremble occurred in a corpus of books? (source: Google Ngram Viewer )