On May 18, 1980, Mount St. Helens exploded with a force comparable to 500 Hiroshima-sized atom bombs. David Johnston, a United States Geological Survey (USGS) geologist based at a monitoring station six miles (9.7 km) away announced the eruption with...

Mount St. Helens is an active stratovolcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is 96 miles (154 km) south of Seattle and 53 miles (85 km) northeast of Portland, Oregon. Mount St. Helens...

DAVID AMMONS, THE ASSOCIATED PRESS The Record (Bergen County, NJ) 10-04-2004 All eyes on Mount St. Helens -- Eruption could happen anytime By DAVID AMMONS, THE ASSOCIATED PRESS Date: 10-04-2004, Monday Section: NEWS Edtion: All Editions.=.Two Star B. Two Star P. One...

University Wire 02-09-2005 (The Bengal) (U-WIRE) VANCOUVER, British Columbia -- The rock was at least the size of a man's head, and geologist John Pallister cradled it as he would a newborn -- which, in a manner of speaking, it was. As little as...

Mount St. Helens reopened to climbers on July 21 for the first time since the mountain began quietly erupting in 2004. Dust, steam and blue-tinted sulfurous gas still rise from the horseshoe-shaped crater left by St. Helens' 1980 eruption, which...

Steam seeping from a fracture atop the lava dome in Mount St. Helens' crater and the mountain's first noteworthy seismic activity since 2004 have caught scientists' attention this week as signs that something is moving inside it.While the likelihood of a major eruption seemed low,...

The 1980 eruption causes and effects.

An explanation of Mount St. Helens in Washington State, which produced one of the most famous volcanic eruptions in history in 1980. The explanation includes Mount St. Helens' history, the effects of the eruption on both cultural and natural environment, and the effects on humans.