This Day in History: 1980-05-18
(May 18, 1980)
Mount St. Helens in Washington erupted in one of the largest volcanic explosions ever recorded in North America on this day in 1980, following an earthquake with a value of 5.1 on the Richter scale.
(May 18, 1980)
Mount St. Helens in Washington erupted in one of the largest volcanic explosions ever recorded in North America on this day in 1980, following an earthquake with a value of 5.1 on the Richter scale.