Upload
glyn
View
24
Download
0
Tags:
Embed Size (px)
DESCRIPTION
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) - PowerPoint PPT Presentation
Citation preview
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