geoscience australia confirmed the 5 . 3 quake did not generate a tsunami . the 2004 india ocean earthquake , which had a magnitude of 9 . 0 , triggered a system of lethal tsunamis on december 26 , 2004 that killed over 270 , 000 people , making it the deadliest storm in recorded history .
a tsunami is a cascade of waves created where a body of rock rapidly displaced on a gigantic scale .