tsunami
" A tsunami is like a sudden burst of energy created by a sudden deformation of the sea floor usually caused by an earthquake."
"A tsunami is like dropping a rock in a pond, but it doesn't go uniformly out. It is guided by underwater mountain ranges and valleys,"
"A tsunami is like a high tide that doesn't stop rising."
"A tsunami is like a train of waves, after one wave hits, it will not be over, stay in a safe place until you are sure it is completely over."
"The difference between tsunami and an ocean wave is that a tsunami is like a whole river that shows up - a tsunami is like a Class 4 rapids that just shows up and all of a sudden you have a river of water that wasn't there before."

METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.