Mount St. Helens and Mount Rainier are stratovolcanoes, which are also called composite volcanoes. Mount St. Helens is most noto
rious for its eruption on May 18, 1980, the deadliest and most economically destructive volcanic event in U.S. history. 57 people died; 250 homes, 47 bridges, 15 miles of railways, and 185 miles of highway were destroyed in the aftermath of its eruption. Which of these statements does NOT describe stratovolcanoes?
The focus is the place inside Earth's crust where an earthquake originates. The point on the Earth's surface directly above the focus is the epicenter. When energy is released at the focus, seismic waves travel outward from that point in all directions.
