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Earthquakes Around the World

Earthquakes Around the World

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Earthquakes Around the World

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  1. Earthquakes Around the World U.S. Geological Survey Walter D. Mooney Senior Research Geophysicist USGS, Menlo Park, CA

  2. Seismicity of the World

  3. Plate Tectonic Theory

  4. Global Seismic Hazard Map

  5. Importance of Engineering Saving Lives through Better Standards. Amplification of unconsolidated vs consolidated materials.

  6. Building Safer Structures Building Safer Structures

  7. Examples of Earthquakes in areas of High Seismic Risk • Bhuj, India, January 26th 2001 • Kocaeli, Turkey, August 17th 1999 • Bam, Iran, December 26th 2003 • Niigata, Japan, October 23rd 2004 • Chi-Chi, Taiwan, 1999 • San Francisco, 1906

  8. Bhuj Earthquake, India: Mw = 7.7 • Only 0.5% global seismic moment release • Bhuj, India, 2001 • 20.000 lives lost • 200.000 people injured • nearly 400.000 houses destroyed

  9. Bhuj, India

  10. Bhuj, India

  11. The Izmit Earthquake, Turkey: Mw = 7.4 Implications for Earthquake Risk from Historical Earthquakes

  12. Izmit Earthquake, Turkey

  13. Izmit Earthquake, Turkey • Over 18,000 deaths • 44,000 people injured • Nearly 300,000 homes either damaged or collapsed Regional Tectonics

  14. The Bam Earthquake, Iran: Mw = 6.6

  15. 2003/12/26 Ms6.6 Bam, Iran • 15,000 deaths • ~70% buildings destroyed or damaged

  16. Niigata Earthquake, Japan : Mw = 6.6

  17. Niigata Earthquake, Japan

  18. San Francisco Earthquake, 1906

  19. Marina district of San Francisco built on “fill land” after 1906 earthquake

  20. 1999 Chi-Chi Earthquake, Taiwan: Mw = 7.6 Modified after Lee,1994 and Teng, 1990)

  21. Chi-Chi Earthquake, Taiwan Historic Seismicity with depth