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Good Friday Earthquake

Good Friday Earthquake. By: Arielle Zahodnick. Alaska. Capital-Juneau Only capital with no road access Size-586,412 sq. mi 2 ½ times larger than Texas. Prince William Sound, AK. Chugach National Forest 2 nd largest forest in US 5.4 million acre 1778-Sandwich Sound(James Cook)

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Good Friday Earthquake

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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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