A massive earthquake up to magnitude 9.2 strikes the Pacific coast on average every 243 years -- and it's been 315 since the last one. Continue reading →
The world's most famous explosion may well have been the most powerful volcanic eruption in history. Trace recounts the stunning force behind the blast the wiped out an entire city almost 2,000 years ago.
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.
Fire has forced more than 13,000 people to evacuate their homes in Northern California.
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.
The tiger had been hiding in a warehouse and escaped the citywide police search.
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