Hi All. I contacted Dr. Brian Atwater who was kind of enough to send me a link to “CREW Cascadia Subduction Zone Earthquakes: A magnitude 9.0 earthquake scenario, 2005.”

It is a long download, but worth the wait. How the people will be affected by the quake will largely depend on where they are at when the quake strikes. Take Care…Don in creepy town

“From the Brooks Peninsula on Vancouver Island to Cape Mendocino in northern California, the Cascadia subduction zone is where the Juan de
Fuca plate meets the North American plate. This meeting has created an 800 mile (1,300 kilometers) long earthquake fault called the Cascadia subduction zone. Earthquakes generated here have far more widespread effects than other types of quakes in the region.”

“When a magnitude (M) 8 to 9 subduction earthquake occurs, it will cause many fatalities and much damage unless we prepare for it. These quakes have occurred anywhere from 200 to 1,000 years apart, with an average of
500 years between them. Our last one was on January 26, 1700. We can look to the 2004 Sumatra and 1964 Alaska earthquakes and tsunamis for some guidance as to what to expect.”

“Groundshaking, landslides, liquefaction, tsunamis, fires, hazardous material spills, and building damage are some of the hazards we face from a Cascadia subduction zone earthquake. The ground could shake for four minutes, even more in some places. This will create unprecedented damage and potentially thousands of casualties.”

“Coastal communities will be subjected to strong shaking, landslides, and tsunamis. Buildings, roads, bridges and utility lines will suffer varying amounts of damage. Some will be destroyed. Extensive injuries and fatalities are likely. Within minutes, a tsunami will arrive, making it essential that residents and visitors understand the need to head for higher ground or inland as soon as the shaking stops. Coastal Highway 101 will be impassable over large stretches, and landslides through the Coast Range will sever highway travel between the coast and inland areas. Destruction of roads, runways, ports, and rail lines will leave individual cities isolated. Residents and visitors will have to do much of the work of rescuing those trapped in the rubble and will be responsible for the immediate clean-up and organization to distribute relief supplies.”

http://www.crew.org/papers/CREWCascadiaFinal.pdf

• Cascadia Final