Good Friday Earthquake
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Transcript of Good Friday Earthquake
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Good Friday EarthquakeBy: Arielle Zahodnick
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Alaska Capital-Juneau
› Only capital with no road access Size-586,412 sq. mi
› 2 ½ times larger than Texas
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Prince William Sound, AK Chugach National Forest
› 2nd largest forest in US› 5.4 million acre
1778-Sandwich Sound(James Cook)› John Montagu-creator of sandwich
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Fad’s during the 1960’s Yo-yos bouncy balls GI Joe James Bond and spy movies
The Beatles
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Fads Continued… American Bandstand Drive-in theatres Paisley Rickie Tickie Stickers
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What Happened? Earthquake generated tsunami 128 lives lost
› Tsunami-113› Earthquake- 15
$311 million in property loss
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Where? Earthquake occurred:
› Large area of Alaska› W. Yukon Territory› British Colombia, Canada
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Facts 9.2 magnitude 2nd largest worldwide Largest in Alaska Cause: Pacific plate movement
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Facts Cont. First day- 11 aftershocks
› Over 6.0 magnitude Next 3 weeks- 9 aftershocks Thousands of aftershocks for months Damage- 130,000 square kilometers
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Facts Cont. Death toll was very small
› Holiday› Low population density› Wooden buildings
Caused $80,000 damage to WA› 5-6 foot waves
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How to Prepare? Check for home hazards Identify safe places Educate Have supplies Help community get ready
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How was it caused? 5-7 cm/ year Pacific plate movement
compressed S. Alaskan crust Sudden SE movement relieves
compression Mega thrust
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What is an Earthquake? Slipping or movement in crust Followed by vibrations Can occur at any time
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What is an Earthquake? Cont.
Release of energy in crust Creates seismic waves
› Vibrations that travel on earthquake fault› Travel for miles
Richter Scale
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Important Words Aftershock
› Smaller earthquake that follow large one Epicenter
› Place right above fault where earthquake began
Fault› Crack that caused earthquake
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Important Words Cont. Magnitude
› Amount of energy released› Each # is 30 times more than previous
Ex- 6.0 is 30x worse than 5.0 Seismicity
› Frequency, type, & size of earthquakes
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Types of Earthquakes