Mount St. Helens erupted, killing dozens and forever changing how the US monitors earthquakes. The volcano is still active ...

Mount St. Helens erupted 45 years ago, causing the deadliest volcanic disaster in U.S. history. Rubio says intel community is ...

The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat levels.

57 people died in the eruption, but the disaster gave scientists a way to develop monitoring tools, improving their ability ...

Mount St. Helens, the largest volcanic eruption in US history, was commemorated this weekend, 45 years after its eruption, ...

For a pilot, the first signs of flying into an ash cloud can include sudden darkness, fluctuating airspeed, and landing lights that cast sharp, distinct shadows. Inside the cabin, there might be dust ...

On May 18, 1980, the United States experienced the deadliest and most destructive volcanic eruption in its history.

Sandy Santori remembers the dark cloud that covered Trail, B.C., beginning May 18, 1980. It filled the sky with a colourless ...

A recent study has pinpointed the origin of a 120-million-year-old 'super-eruption,' shedding new light on Earth's intricate ...

One hotspot may have formed the Pacific’s largest volcanoes, linking the Ontong-Java Plateau to the Louisville Ridge.

A LaGuardia air traffic controller gave a Republic Airways flight the go-ahead for takeoff and then abruptly telling them to ...