Erica's Answer:
They fall into the realm of geology, which is the study of our Earth (below ground level, for the most part). Geologists study things like volcanoes, earthquakes, and tsunamis! A tsunami is an earthquake that happens under the ocean floor. I consulted a geologist friend from my alma mater, Penn State. She says that it would be almost impossible for a tsunami to hit the East coast, because the fault lines that cause tsunamis are thousands of miles away from the East coast of the United States. Add that to the fact that the nearest underwater fault line is very inactive, and the possibility for a tsunami in Philadelphia is beyond unlikely—it's ridiculous!- Erica
