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The Great Good Friday Earthquake: Tragedy and Resilience in Alaska

Learn about the powerful earthquake that struck Alaska on Good Friday, causing devastation and loss of lives. Discover how the local communities coped with the aftermath and the impacts on the region's landscape and economy. Explore the geological and historical significance of this seismic event.

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The Great Good Friday Earthquake: Tragedy and Resilience in Alaska

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  1. Good Friday Earthquake By: Arielle Zahodnick

  2. Alaska • Capital-Juneau • Only capital with no road access • Size-586,412 sq. mi • 2 ½ times larger than Texas

  3. Prince William Sound, AK • Chugach National Forest • 2nd largest forestin US • 5.4 million acre • 1778-Sandwich Sound(James Cook) • John Montagu-creator of sandwich

  4. Fad’s during the 1960’s • Yo-yos • bouncy balls • GI Joe • James Bond and spy movies • The Beatles

  5. Fads Continued… • American Bandstand • Drive-in theatres • Paisley • Rickie Tickie Stickers

  6. What Happened? • Earthquake generated tsunami • 128 lives lost • Tsunami-113 • Earthquake- 15 • $311 million in property loss

  7. Where? • Earthquake occurred: • Large area of Alaska • W. Yukon Territory • British Colombia, Canada

  8. Facts • 9.2 magnitude • 2nd largest worldwide • Largest in Alaska • Cause: Pacific plate movement

  9. 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

  10. Facts Cont. • Death toll was very small • Holiday • Low population density • Wooden buildings • Caused $80,000 damage to WA • 5-6 foot waves

  11. How to Prepare? • Check for home hazards • Identify safe places • Educate • Have supplies • Help community get ready

  12. How was it caused? • 5-7 cm/ year Pacific plate movement compressed S. Alaskan crust • Sudden SE movement relieves compression • Mega thrust

  13. What is an Earthquake? • Slipping or movement in crust • Followed by vibrations • Can occur at any time

  14. What is an Earthquake? Cont. • Release of energy in crust • Creates seismic waves • Vibrations that travel on earthquake fault • Travel for miles • Richter Scale

  15. Important Words • Aftershock • Smaller earthquake that follow large one • Epicenter • Place right above fault where earthquake began • Fault • Crack that caused earthquake

  16. 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

  17. Types of Earthquakes

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