Ecuador's president Rafael Correa said Saturday he will declare a state of emergency as the Cotopaxi volcano rumbled to life and prompted evacuation orders in several villages threatened by landslides.
Fires are burning out of control in parts of California and one person has died in the effort to contain the drought-fueled blazes.
A small quake in San Francisco on Tuesday reminds that a much more damaging quake is due any day now.
Big simulators are playing a major role in the rapid development of research and technology that saves lives.
Sand dunes are mysterious and beautiful. Find out how they work and what they hide.
Climbers who couldn't use their $11,000 climbing permits this year because of the Nepal earthquake might be able to use them in 2016.
The 15-year-old came across a jar of clarified butter that sustained him until rescuers found him
Terrified residents were jolted by a 6.7-magnitude aftershock that compounded one of the worst disasters to hit the impoverished Himalayan nation.
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