Natural Disasters By: Patrick L. Abbott. Chapter 4 Some Earthquakes in Western North America.

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Presentation transcript:

Natural Disasters By: Patrick L. Abbott

Chapter 4 Some Earthquakes in Western North America

Overview zSubduction Zone Earthquakes zSpreading-Center Earthquakes zTransform Fault Earthquakes California zHow Faults Work zThrust Fault Earthquakes in Southern California zThe Big One

Subduction Zone Earthquakes zThe Good Friday Earthquake, Alaska, 1964 zMexico City, 1985 yEarthquakes Don’t Kill, Buildings Do zPacific Northwest, The Upcoming Earthquake yEarthquake in 1700

Spreading-Center Earthquakes zCharacteristics zPossible effects zMajor faults

Transform Fault Earthquakes in California zSan Francisco, 1906 zSan Andreas Fault Earthquakes yNeotectonics yPaleoseismology zWorld Series (Loma Prieta) Earthquake, 1989 yEarthquakes Don’t Kill, Buildings Do

Transform Fault Earthquakes in California (cont. ) yMarina District yInterstate 880 zBay Area Earthquakes - Past and Future yThree patterns zKobe, Japan, 1995 vs. Oakland, California, 20??

How Faults Work zOld View yFriction zNewer View zLanders, California, 1992 zSouthern San Andreas Fault

Thrust Fault Earthquakes in Southern California zThrust faults zBlind thrusts zGlobal Positioning System(GPS) zNorthridge, California, 1994

The Big One zEvaluation of hazards zFault systems