Of Earth's 1,511 volcanoes known to have erupted in the past 10,000 years, 699 are stratovolcanoes. Earth's highest volcano is a stratovolcano; Nevado Ojos del Salado in Chile is 6,887 m above sea level. The highest volcano with historic eruptions is Llullaillaco, Chile, at 6,739 m. Both volcanoes are located in the northern Chilean Andes.
Mount St. Helens is the youngest stratovolcano in the Cascades and the most active. Geologists have identified at least 35 layers of tephra erupted by the volcano in the past 3,500 years. Mount Shasta is the largest stratovolcano in the Cascades.
Related categories GEOGRAPHY
• GEOLOGY AND PLANETARY SCIENCE
Source: U.S. Geological Survey
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