CBC Archives has a new look: Please go to cbc.ca/archives to access the new site. the world's oceans, predicting their speed, wavelength, and amplitude. These plates push and grind under and past each other in areas called subduction zones. This site uses Akismet to reduce spam. The story describes real events: In the year 1700 around 1,000 kilometres of the Cascadia Subduction Zone had slipped 22 metres under the Pacific Ocean. Could we be hit with devastating waves like those that struck south Asia? The earthquake also left unmistakeable signatures in the geological record as the outer coastal regions subsided and drowned coastal marshlands and forests that were subsequently covered with younger sediments. One death was reported in connection with the tsunami. Your submission has been received! Earthquakes are caused and can be tiny or they can be massive, like the 2004 Sumatran earthquake, which ruptured 1,000 kilometres of coastline. "energy map" of a mathematical surface representing the maximum rise in sea level on the report singled out a few tales including: "One man [who] dashed out to save his brand-new convertible only to find a pair of youngsters floating by on a log; he too was chest deep before the trio made it to dry ground. One of his stories was about his great-grandfather who lived at Pachena Bay, on the west coast of Vancouver Island. Such an earthquake would have ruptured the earth along the entire The history of Vancouver Island, British Columbia is an interesting amalgamation of First Nations and European culture and heritage. Despite the hazards, people returned to the sites not just for the easy access to food, but because rites and power were often tied to physical location, said Simon Fraser University-based archaeologist Alan McMillan. also produces megathrust earthquakes capable of generating devastating, ocean-crossing these values through the simulated motion of the waves, and as they race around the globe one It inflicted widespread damage to log booms along the coast of the Queen Charlotte Islands and Vancouver Island. “From the archaeological material, I think people reoccupied many of these sites quite quickly. Toward the end of this simulated 48 hours of activity, the wave animation will transition to the When the earth moves violently, strange things seem to happen to your mind. A strong quake along the Cascadia Subduction Zone, which stretches from Cape Mendocino to Vancouver Island, British Columbia, likely generated a 50-foot tsunami in Northern California. • The report estimated the wave was traveling at nearly 400 km/h and "smashed everything in its path and tossed enormous logs and other debris, including buildings, boats and automobiles up to 1,000 feet (or 305 metres)."

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