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The Cascadia Subduction Zone is one of the biggest hazards in the U.S. The fault runs offshore along the West Coast from Northern California to northern Vancouver Island in Canada. It is capable ...
Over the past century, scientists have only observed five magnitude-9.0 or higher earthquakes — all megathrust temblors like the one predicted for the Cascadia Subduction Zone.
Research by USGS geophysicist Danny Brothers indicates there have likely been at least 30 large earthquakes over the last 14,200 years in sections of the Cascadia subduction zone, which runs along ...
Structure of the Cascadia subduction zone. The Cascadia subduction zone is a 1,000 km (620 mi) long dipping fault that stretches from Northern Vancouver Island to Cape Mendocino in northern California. It separates the Juan de Fuca and North America plates. New Juan de Fuca plate is created offshore along the Juan de Fuca Ridge.
The 1700 Cascadia earthquake occurred along the Cascadia subduction zone on January 26, 1700, with an estimated moment magnitude of 8.7–9.2. The megathrust earthquake involved the Juan de Fuca plate from mid-Vancouver Island, south along the Pacific Northwest coast as far as northern California. The plate slipped an average of 20 meters (66 ...
It is where three tectonic plates meet and the Northwest’s Cascadia subduction zone and California’s San Andreas Fault system meet. The quake itself occurred on the Mendocino fault zone.
Stumps of trees at the Neskowin Ghost Forest. The Neskowin Ghost Forest is the remnants of a Sitka spruce forest on the Oregon Coast of the United States. The stumps were likely created when an earthquake of the Cascadia subduction zone abruptly lowered the trees, that were then covered by mud from landslides or debris from a tsunami. [1]
Scientists say that the Cascadia subduction zone off the coast of the Pacific Northwest has the potential to spark a magnitude-9.0+ earthquake, plus a subsequent tsunami. That scenario last ...