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Natural Disasters

Natural Disasters. By: Patrick L. Abbott. Chapter 5. More United States and Canadian Earthquakes. Overview. Western North America: Plate Tectonic-Related Earthquakes Intraplate Earthquakes: “Stable” Central United States Intraplate Earthquakes: Eastern United States. Overview (cont.).

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Natural Disasters

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  1. Natural Disasters By: Patrick L. Abbott

  2. Chapter 5 More United States and Canadian Earthquakes

  3. Overview • Western North America: Plate Tectonic-Related Earthquakes • Intraplate Earthquakes: “Stable” Central United States • Intraplate Earthquakes: Eastern United States

  4. Overview (cont.) • Fracture-Zone Hypothesis of Major Earthquakes • Earthquakes and Volcanism in Hawaii

  5. Western North America: Plate Tectonic-Related Earthquakes • Pacific Northwest: Oregon, Washington, and British Columbia • Puget Sound, Washington, 1949 and 1965 • Future Earthquakes in the Washington Region • Western Great Basin: Eastern California, Western Nevada • Owens Valley, California, 1872 • The Western Great Basin Seismic Trend

  6. Western North America: Plate Tectonic-Related Earthquakes (cont.) • Intermountain Belt: Utah, Idaho, Wyoming, Montana • Hebgen Lake, Montana, 1959 • Borah Peak, Idaho, 1983 • The Intermountain Seismic Belt • Rio Grande Rift: New Mexico, Colorado, Westernmost Texas, Mexico

  7. Intraplate Earthquakes: “Stable” Central United States • New Madrid, Missouri, 1811-1812 • Embayment • Reelfoot Rift: Missouri, Arkansas, Tennessee, Kentucky, Illinois • Ancient Rifts in the Central United States • Failed Rift

  8. Intraplate Earthquakes: Eastern United States • New England Earthquakes • Quicksand • St. Lawrence River Valley Earthquakes

  9. Fracture-Zone Hypothesis of Major Earthquakes • Fracture zones • Seamounts • Charleston, South Carolina, 1886

  10. Earthquakes and Volcanism in Hawaii • Harmonic tremors • Characteristics

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