Sunday marks 45 years since Mount St. Helens erupted in Washington state. The deadly eruption happened shortly after 8:30 a.m. on May 18, 1980, following months of small explosions and earthquakes.

Some Pacific Northwesterners woke Tuesday to an unusual sight: A smoky haze shrouded Mount St. Helens, the large, active stratovolcano in Washington state that erupted catastrophically in 1980. But a ...

Strong winds across parts of Washington state have kicked up volcanic ash deposited during the 1980 eruption of Mount St. Helens, creating hazy conditions and reducing air quality. The phenomenon, ...

A hazy cloud that emerged over the active volcano was the result of high winds rather than a new eruption. By Amy Graff and Soumya Karlamangla On the morning of May 18, 1980, the most destructive ...

46 years ago today, Mount St. Helens erupted. The massive eruption sent ash and steam skyward as the north face of the mountain collapsed, sliding into the North Fork Toutle River below. PAST COVERAGE ...

The eruption, which occurred at 8:32 a.m., claimed 57 lives, destroyed 200 homes and flattened 230 square miles of forest. It also triggered the largest landslide in recorded history and propelled a ...

For a moment, it seemed like a blast from the past: a plume over Mount St. Helens on Tuesday looked like the volcano might be erupting again. But fortunately, this was not an eruption — just a ...