Below you can find the Triggered by earthquakes these destructive sea waves have been known to travel at nearly 500 mph Jeopardy Words Answer. The answer to Triggered by earthquakes these destructive sea waves have been known to travel at nearly 500 mph has 7 letters. This clue belongs to the The earth category and is part of Jeopardy Word Level 686. If you scroll near the bottom you will find other clues and answers part of level 686