Lava shoots high into the sky. Molten rock erupts from two vents simultaneously. The nighttime sky glows red and orange, reflecting the lava oozing across a summit crater. Scientists expect Kilauea ...

Multiple earthquakes have hit near Alaska's Mount Spurr that scientists warn is gearing up for an eruption. The US Geological Survey (USGS) detected at least a dozen tremors within 30 miles of the ...

One of the most explosive volcanoes in U.S. history began its eruption with a trickle, not a blast. Mount St. Helens' gas-laden magma oozed into the cone before the mountain finally erupted in 1980.