2. How Accurate is the Movie?

3. Is Dante's Peak a real mountain?

4. Dante's Peak is a mountain in Death Valley, CA

5. It’s not a volcano, but it has a great view!

6. Does magma ever rise into hot springs?

7. Not really. It could happen, but I know of no actual events.

8. Are “tilt meters” real?

9. YES. They are used to measure changes in gradient.

10. Are robots such as “spider legs” really used in volcanoes?

11. NO. Although NASA tested one. Others are used for other purposes though.

12. Do volcanologists really wear gas masks around volcanoes?

13. YES. Otherwise, vulcanologists can die rapidly from colorless, odorless poison gases.

14. Paul describes events around “Mammoth Mt.” Is it a real place?

15. YES. Mammoth Mountain is a real supervolcano in Long Valley, CA. It really did become seismically active recently.

16. Can volcanologists feel the difference between magmatic and tectonic earthquakes?

17. NO.

18. Fire is usually the worst problem after an earthquake. Why?

19. Multiple fires break out, fuel leaks, and water mains break.

20. Is it normal procedure to drive into a stream current?

21. NO. It’s not only dangerous, but also very bad for the environment.

22. Does volcanic ash really choke aircraft engines?

23. YES.

24. Can lakes become severely acidic in a short period of time?

25. NO. Volcanic acidification typically takes years.

26. Is ash coarse- grained or fine- grained?

27. Very fine- grained. In the movie, they used shredded paper.

28. Are fast-flowing basaltic lavas typical for Cascade volcanoes?

29. NO. They have happened, but slow-flowing andesitic lavas are more typical.

30. Can you drive across an active lava flow?

31. SURE…go ahead! (just kidding). But you can drive on one after it’s cooled if it’s fairly level.

32. Is it possible to drive faster than a pyroclastic cloud?

33. NO. Depending on gradient, they can travel 600 m.p.h.

34. Can you think of some other things that were well done in the movie?

35. Can you think of some other things that were poorly done in the movie?

36. Have a nice day!