What is molten rock below the surface of the Earth called?

Which of these is NOT a natural disaster?

Which natural disaster can produce the fastest winds on Earth?

Which natural disaster cannot be caused by shifts in tectonic plates?

In what country did the strongest earthquake on record occur?

What natural phenomenon is a hypocenter associated with?

On average, what are your chances of being struck by lightning in a given year?

What is the most dangerous type of avalanche?

Which of the following islands was completely destroyed during an 1893 hurricane?

How often does lightning occur worldwide?