good friday earthquake

Good Friday EarthquakeBy: 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

› 2nd largest forest in US› 5.4 million acre

1778-Sandwich Sound(James Cook)› John Montagu-creator of sandwich

Fad’s during the 1960’s Yo-yos bouncy balls GI Joe James Bond and spy movies

The Beatles

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

What Happened? Earthquake generated tsunami 128 lives lost

› Tsunami-113› Earthquake- 15

$311 million in property loss

Where? Earthquake occurred:

› Large area of Alaska› W. Yukon Territory› British Colombia, Canada

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

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

Facts Cont. Death toll was very small

› Holiday› Low population density› Wooden buildings

Caused $80,000 damage to WA› 5-6 foot waves

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

How was it caused? 5-7 cm/ year Pacific plate movement

compressed S. Alaskan crust Sudden SE movement relieves

compression Mega thrust

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

What is an Earthquake? Cont.

Release of energy in crust Creates seismic waves

› Vibrations that travel on earthquake fault› Travel for miles

Richter Scale

Important Words Aftershock

› Smaller earthquake that follow large one Epicenter

› Place right above fault where earthquake began

Fault› Crack that caused earthquake

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

Types of Earthquakes