SAN FRANCISCO -- Tsunami advisories have been lifted for California after an undersea volcanic eruption Saturday near the Pacific nation of Tonga. That eruption Saturday sent a plume of ash, gas, and ...

We've all been told to prepare for "the big one," but scientists say there is a different natural disaster we may not be ready for. The U.S. Geological Survey reports there is a 16 percent possibility ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ...

Southern California has many treasures, but believe it or not, nothing like this hidden gem. When most of us think of volcanoes, we think of molten lava spewing up from the earth and melting ...