Why are tsunamis so deadly?

Related questions

1. Can a water wheel power a house?
2. How many died in Indian tsunami?
3. Can you still drive across Hoover Dam?
4. Can you survive 47 meters under water?
5. What city in California has the most earthquakes?
6. Is San Francisco sinking?
7. Is the movie The Impossible based on a true story?
8. Will California have a tsunami?
9. How many bodies are buried in the Hoover Dam?
10. Is Hoover Dam still curing?

Tags

1. #great
2. #damage
3. #caused
4. #areas
5. #river
6. #cause
7. #earthquake
8. #thousands
9. #estuaries
10. #beaches
11. #property
12. #large
13. #mouths
14. #places
15. #flats
16. #miles
17. #lagoons
18. #coastal
19. #dangerous
20. #regions
21. #tsunamis
22. #tidal