Bible Greek and Hebrew Dictionaries combined for Word Studies
Genesis Chapter 1
earthquake 4578 # seismos {sice-mos'}; from 4579; a commotion, i.e. (of the air) a gale, (of the ground) an earthquake: -- {earthquake}, tempest.
earthquake 7494 ## ra`ash {rah'-ash}; from 7493; vibration, bounding, uproar: -- commotion, confused noise, {earthquake}, fierceness, quaking, rattling, rushing, shaking.