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[13]: 215 An eruption in 1900 BC was the largest known eruption from St. Helens during the Holocene epoch, depositing the Yn tephra. [ 13 ] : 215 [ 31 ] This eruptive period lasted until about 1600 BC and left 18 inches (46 cm) deep deposits of material 50 miles (80 km) distant in what is now Mount Rainier National Park .
Satellite images captured the massive 1980 eruption of Mount St. Helens. (NOAA / GOES-3 / Colorado State) ... You couldn't pull me out with a mule team," Truman told the Longview Daily News ...
Mount St. Helens is an active volcano in the Cascade Range, according to the U.S. Geological Survey. It erupted in 1980 after a 5.1-magnitude earthquake shook the area. It is about 75 miles ...
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The 2023 South Coldwater Slide is a mudslide that occurred in May 2023 near Mt. St. Helens. The volume of debris, and subsequent destruction of a bridge, closed off Washington State Route 504 and access to the Mount St. Helens National Volcanic Monument .
Bear Meadows is an alpine meadow and viewpoint northeast of Mt. St. Helens. It is located on U.S. Forest Service Road 99. Gary Rosenquist camped here with friends on May 17–18, 1980. He started taking his famous eruption photographs from this location. The sequence of eruption photos provide a time-lapse view of the developing eruption. As ...
More than 400 earthquakes have been detected beneath Washington's Mount St. Helens in recent months, though there are no signs of an imminent eruption, according to the U.S. Geological Survey.
On March 27, 1980, a series of volcanic explosions and pyroclastic flows began at Mount St. Helens in Skamania County, Washington, United States.A series of phreatic blasts occurred from the summit and escalated until a major explosive eruption took place on May 18, 1980, at 8:32 am.