Today, 45 years ago, on March 28, 1980 (February 12, 1980), the U.S. St. Helens volcano erupted. The first eruption of the volcano since 1857 On March 28, 1980, the mouth of the volcano around St. Helens began to erupt steam, volcanic ashes and pebbles. This is a volcano located in southern Washington state, which has been in a state of rest since 1857. Scientists from the U.S. Geological Observatory are testing the eruption and allowing 100 people to leave the lava floating or the mud flowing to the ground. Since the 1917 eruption of the Lausanne volcano in California, this was the first volcanic activity on the continent. In 1979, a geological observation report stated that St. Helens Mountain was ¡°particular