Create a CER on how a natural disaster can cause an ecosystem to be knocked out of equilibrium

A natural disaster can cause an ecosystem to obliterate completely.

On March 18th, 1980, Mount St. Helens erupted in Washington. The eruption caused over 19 miles of destruction. Nearly 40 years later, the surrounding area still showed signs of recovering. The hot blast of volcanic ash destroyed the ecosystem around the volcano, and while the ecosystem was destroyed, eventually the ecosystem slowly grew back to flourishing.