40 years ago today, Mt. St. Helens erupted in Washington

On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.
On May 18, 1980, Mt. St. Helens exploded in an enormous volcanic eruption in the state of Washington. Though there was some volcanic activity recorded on the mountain in the weeks prior, the explosion caught researchers by surprise. Estimates indicate that more than 50 people were killed in the disaster.