The Cascadia subduction zone is a 620-mile (1,000 km) long convergent plate boundary, about 70–100 miles (110–160 kilometers) off the Pacific coast of North America, that stretches from northern Vancouver Island in Canada to Northern California in the United States. It is capable of producing 9.0+ magnitude earthquakes and tsunamis that could reach 100 feet (30 m) high.
The Cascadia subduction zone is a 620-mile (1,000 km) long convergent plate boundary, about 70–100 miles (110–160 kilometers) off the Pacific coast of North America, that stretches from northern Vancouver Island in Canada to Northern California in the United States. It is capable of producing 9.0+ magnitude earthquakes and tsunamis that could reach 100 feet (30 m) high.
Source: Wikipedia "Cascadia subduction zone" · CC BY-SA 4.0
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