Earthquakes in Western Canada  What causes earthquakes? National Geographic Video National Geographic Video on the Cause of Earthquakes National Geographic Video Planning for Giant Earthquakes Planning for Giant Earthquakes

2007 Major Earthquakes in Canada

Western Canada Earthquakes in the Last 30 Days Western Canada Earthquakes in the Last 30 Days  There are many earthquakes every day, but only a small number of these quakes are noticeable and even fewer result in damage.

Earthquake Effects  Volcanic Eruptions  Devastation from shaking (destroys houses and kills people)  Tsunami  What are some effects of earthquakes?

Mt St. Helens Eruption 1980 Mt St Helens Video (7mins on)

540 million tons of ash fell over an area of more than 22,000 square miles!!!! 350 times more powerful than the explosions of the first nuclear bombs

Big Earthquakes in Our Area Several MAJOR earthquakes have hit B.C. and Western North America in the last 100+ Years 1906 San Francisco 8.3 Richter Scale1906 San Francisco 8.3 Richter Scale 1967 Anchorage, Alaska 9.2 Richter Scale1967 Anchorage, Alaska 9.2 Richter Scale

1906 San Francisco Earthquake

 Fire destroyed 500 city blocks  5500 killed, 300,000 homeless  Looters shot (500 killed)  $5.1 Billion of damage (in 2006 $) 1906 San Francisco Earthquake

1964 Alaska Earthquake HUGE!!! 123 people dead and over $100million in damages Raised land by 30 feet and some areas dropped by 8 feet Tsunamis occurred

Port Alberni Tsunami

Port Alberni Tsunmai 375 Houses Damaged 55 houses lost Extensive flooding

 You Tube: Cascadia Subduction Zone Cascadia Subduction ZoneCascadia Subduction Zone  Earthquake Simulation Earthquake Simulation Earthquake Simulation