How strong is Mt St Helens?

Answer 1

Mt St Helens erupted at 8:32 am PDT on May 18, 1980(a VEI 5 event). it erupted with 24 megatons of thermal energy. so yes, Mt St Helens was a very strong and large eruption. history repeats itself so it is safe to assume that it will happen again.

Answer 2

Mt. St. Helens is a stratovolcano located in Washington state, USA. It is most famous for its catastrophic eruption on May 18, 1980, which was one of the most powerful volcanic explosions in North America in the 20th century. The eruption caused massive destruction of the surrounding area and changed the landscape significantly.

Answer 3

Mount St. Helens is both an explosive and nonexplosive volcano. This means that it can cause calm lava flows and at the same time it can blow half of the mountain off.

Answer 4

The Richter scale is used to measure earthquakes, not volcanic eruption. Volcanic eruptions are measured by Volcanic Explosivity Index. The 1980 eruption was measured at VEI-5.