plate tectonics & earthquakes
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Plate Tectonics & Earthquakes. Earthquakes in Western Canada. What causes earthquakes? National Geographic Video on the Cause of Earthquakes Planning for Giant Earthquakes . 2007 Major Earthquakes in Canada. Western Canada Earthquakes in the Last 30 Days. - PowerPoint PPT PresentationTRANSCRIPT
Earthquakes in Western CanadaEarthquakes in Western Canada What causes earthquakes?What causes earthquakes?
National Geographic Video on the Cause of on the Cause of Earthquakes Earthquakes
Planning for Giant Earthquakes
2007 Major Earthquakes in Canada2007 Major Earthquakes in Canada
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BCQuebecYukonNova ScotiaNunavutNew BrunswickOntario
Western Canada Earthquakes in the Last 30 Days There are many earthquakes every day, There are many earthquakes every day,
but only a small number of these but only a small number of these quakes are noticeable and even fewer quakes are noticeable and even fewer result in damage.result in damage.
Earthquake EffectsEarthquake Effects
Volcanic EruptionsVolcanic Eruptions
Devastation from shaking Devastation from shaking (destroys houses and (destroys houses and kills people)kills people)
TsunamiTsunami
What are some effects of earthquakes?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 AreaBig 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 Earthquake1906 San Francisco Earthquake
Fire destroyed 500 city blocksFire destroyed 500 city blocks
5500 killed, 300,000 5500 killed, 300,000 homelesshomeless
Looters shot (500 killed)Looters shot (500 killed)
$5.1 Billion of damage $5.1 Billion of damage (in 2006 $)(in 2006 $)
1906 San Francisco Earthquake1906 San Francisco Earthquake
1964 Alaska Earthquake1964 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 TsunamiPort Alberni Tsunami
Port Alberni TsunmaiPort Alberni Tsunmai
•375 Houses Damaged 55 houses lost
•Extensive flooding
You Tube: Cascadia Subduction ZoneYou Tube: Cascadia Subduction Zone
Earthquake Simulation Earthquake Simulation