Millions of years ago, many parts of Colorado were a roiling, seething mass of ash clouds and lava rivers, straight out of an apocalyptic nightmare. Volcanic activity in places like the San Juan ...

Kilauea, one of Hawaii’s most active volcanoes, just erupted, sending lava over 1,000 feet into the air and visitors to the state’s most famous national park scrambling for cover. The 4,000-foot ...

For a split second, a fireball outshone the rivers of molten lava flowing from the Philippines’ most active volcano. By Robin George Andrews As night fell over the island of Luzon in the Philippines ...

Add Yahoo as a preferred source to see more of our stories on Google. Yellowstone eruption, illustration. Is this what it would actually look like? Picture this: You're roaming Yellowstone National ...

Hawaii’s most active volcano has resumed erupting after a weeklong pause. The U.S. Geological Survey said Kilauea began continuously releasing lava from its summit caldera inside Hawaii Volcanoes ...