1. Tsunami

2. What is a Tsunami December 26th 2004. Tsunami hits the Indian Ocean. December 26th 2004. Tsunami hits the Indian Ocean. Indonesia, Sri Lanka, India, and Thailand. Indonesia, Sri Lanka, India, and Thailand. Estimate 283,000 people killed Estimate 283,000 people killed Tsunami is a series of giant waves Tsunami is a series of giant waves Impulsive disturbance Impulsive disturbance

3. How Tsunamis Form Earthquake Landslides Volcanoes Earthquake Landslides Volcanoes  Tectonic Plates UnderseaExplosive  Energy pushes Rock & Debris water above water above sea level. sea level.  Gravity

4. The Speed Of A Tsunami Wave Water (20,000 feet) Water (20,000 feet) 244.5 meters per second or 550 miles per hour (890 km/h) 244.5 meters per second or 550 miles per hour (890 km/h)

5. The Velocity of a Tsunami V= Velocity V= Velocity G = The Earth’s gravitational acceleration (approximately 9.8 m/s2 at sea level ) G = The Earth’s gravitational acceleration (approximately 9.8 m/s2 at sea level ) D (H)= The depth of the ocean D (H)= The depth of the ocean V= (G * D or H) V= (G * D or H)

6. Example How fast should a tsunami move in 180 meters (600 ft) of water? How fast should a tsunami move in 180 meters (600 ft) of water? {Depth, H=180 m} V = (g H) = (9.8/180) V = 1764 V =^1764 =42 meters per second V =^1764 =42 meters per second This is about 94 miles per hour !