Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample ...

Watch live as the world’s largest active volcano, Mauna Loa in Hawaii, erupts for the first time in almost 40 years ...

Add Yahoo as a preferred source to see more of our stories on Google. Yellowstone’s massive supervolcano and Mount St. Helens, the volcano that devastated Washington in 1980, are among America’s most ...

Mount Etna in Sicily, the largest active volcano in Europe, has been blowing spectacular “smoke rings” into the sky since ...

Iceland offers some of the Earth's most dramatic sights. And if you head off the beaten path, you can explore some of its lesser-known attractions from ice caves to bubbling lava fields and silent ...

HONOLULU (AP) — Hawaii officials are warning residents of the Big Island that the world’s largest active volcano, Mauna Loa, is sending signals that it may erupt. Scientists say an eruption isn’t ...

Scientists reveal a hidden magma and fluid system beneath Ebeko volcano, explaining how quiet surfaces can lead to sudden ...

With a hiss of steam, lava flowed from the park into the Pacific Ocean in January 2017. Similar flows of molten rock have built the Hawaiian Islands over the past 70 million years. Photograph by ...