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Tsunami Crash Course

Tsunami Crash Course. Images from UNESCO IOC Brochure: Tsunami: The Great Waves. Shallow Water Wave!. C = √(gd). Similar to surge, much depends on bathymetry. Deep water. Near shore. Before and After. Warnings:

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Tsunami Crash Course

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  1. Tsunami Crash Course Images from UNESCO IOC Brochure: Tsunami: The Great Waves

  2. Shallow Water Wave! • C = √(gd)

  3. Similar to surge, much depends on bathymetry Deep water Near shore

  4. Before and After

  5. Warnings: • If close to event center, only defense is to head for high ground (U. West Coast, esp. Wash/Ore.) • Sometimes there is time to warn, or at least cancel warnings (DART)

  6. Crescent City, CATsunami Magnet • Offshore Bathymetry (underwater Topography): Mendocino Fracture Zone • Shape of near-shore shelf • Shape of coastline itself • 8 Feet in Sendai Tsunami • 22+ feet in 1964 (from Alaskan Earthquake)

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