The eruption also left a huge crater at the volcanos summit, reducing its overall height by 1,314 feet.
However, it began to show significant signs once again in October 2004.
According to John Eichelberger, a volcanologist at the University of Alaska-Fairbanks, Mt.
St. Helens is basically a giant tube of toothpaste, squeezing out lava.
Due to the mountains shape, the magma doesnt have any space to collect.
The initial phase produced rapid growth of a lava dome as magma pushed upward, the USGSexplains.
Scroll down to see the full time-lapse video of the 2004 Mt.
In 1980, Mt.
St. Helens had a catastrophic eruption.
St. Helens erupted again in 2004, creating a new lava dome in the center of the crater.
The USGS captured a time-lapse video of the eruption.
Look how much the dome grew!
