The explosion sent incandescent volcanic material and ash high into the air as the hikers watched from the upper slopes near ...

MEXICO. Today, there were new reports of more activity in the Popocatepetl volcano, where there was a new eruptive explosion that threw a column of ash more than three kilometers above the crater and ...

Officials reported a hydrothermal explosion at Yellowstone’s Biscuit Basin, forming new vents and a boiling pool with no ...

Another hydrothermal explosion occurred at Yellowstone National Park, pointing to the unpredictable nature of the park's vast underground thermal system and providing scientists with a rare ...