Natural disasters strike with little or no warning, making them uniquely frightening and fascinating. Still, scientists continue to search for ways to guard us against nature's fury. The Day the Earth Shook - Does a devastating earthquake lurk beneath Los Angeles? Watch terrifying scenes from Kobe, Japan, and Northridge, California, and find out how new warning and rescue technology could protect us if it's put into place in time. Tornado! travels with the "stormchasers" as they view the awesome power of tornadoes sweeping across the land and seek to understand how they are created. In the Path of a Killer Volcano - The Philippines' Mount Pinatubo is about to blow big. Is there enough time to evacuate the hundreds of thousands in its raging path? Stay with the scientists who remain behind, and see some astonishing footage of the world's largest volcanic eruption in 80 years.
