1. San Andreas Fault Zone
Mr. Kleinschrodt

2. Location California North American & Pacific Plates
Major cities: Los Angeles, San Diego, San Francisco
Millions of people live on or near the fault

3. Transform North American & Pacific Plates are sliding past each other
Pacific Plate is moving northwest, N. American Plate is moving southeast
Moving inches per year
Fault itself is about 28 million years old

4. Features Earthquakes Intense folding of rocks in the locked sections
Thousands of small earthquakes every year
Creeping in sections that are in slow motion (Parkfield, CA)

5. Major Tectonic Events 1857 – Fort Tejon (7.9) 3000 deaths
1906 – San Francisco (7.9) 3000 deaths, destroyed the city, $400M damages
1952 – Kern County (7.3) 12 deaths, $50M damages
1989 – Loma Prieta (7.1) 57 deaths, $6B damages
Future risk is high

6. Impact of the San Andreas Fault Zone
California residents are urged to Be Prepared
Statewide earthquake drill every year in October
Government and business are spending millions of dollars to retrofit older buildings to withstand a large earthquake
More research is being done to better predict and forecast earthquake risk
Impact of the San Andreas Fault Zone
Greater than 50/50 chance of having a major earthquake on the San Andreas Fault in the next 30 years (greater than 6.7)
Experts agree California is overdue for a major earthquake on the San Andreas Fault

7. Resources http://www.sanandreasfault.org/ http://www.shakeout.org/