1. Выполнила: Агаркина Кристина
Tsunami
Prezentacii.com
- 7класс

2. Keith was a giant monster, killing other whales and depriving people offshore. Thunder-bird saw from the nest in the mountains, people are starving. She flew over the coastal waters, and grabbed China. The battle began in the ocean. Water first receded and then collapsed on the beach. Scored the many canoe high on the trees, there was much destruction and many dead. In the end, the Thunder-bird managed to lift China out of the water high into the air and drop to the ground. Pacific Northwest tribes legend

3. Tsunami

4. WHAT IS A TSUNAMI?
Sea waves produced by underwater earthquakes and coastal Sea of long gravitational waves arising from the vertical shift of significant seabed.

5. Where and how tsunamis occur?

6. How and where tsunamis occur?
The formation of giant waves
Breakthrough hot magma ocean
Break the crust

7. Tsunami - Wave Crest - the highest part of the wave
SOLE - the lowest part of the wave
The wave height - the distance from trough to crest
Wavelength - the distance between two adjacent crests
гребень
гребень
Длина волны
Высота волны
Подошва волны

8. The shape and height waves
. Because of the reduction of the depth and increase the friction of the water particles on the bottom of the wave changes shape and is converted into a huge surf the whole mass is dumped on the land.
Burundi - foamy wav

9. surf

10. just numbers tsunami height 10 – 40 см – in the ocean
speed tsunami
км/час -in the ocean
км/час -at the shore
tsunami height – 40 см – in the ocean
10-20, возможно и 70 метров -at the shore
wavelength
Aqua - up to 100 meters
Tsunami kilometers

11. The strength of the tsunami
Earthquake (in points)
% Of tsunami
5,5 – 6,5points
1,4%cases
6,5 – 7,0points
17%cases
7,0 – 7,2points
67%cases
Более 7,5points
90%cases

12. where there

13. The strength of the tsunami
weak (specialists)
average (all) - the weak destruction on the coast
strong Flooded the coast, boats thrown.
very strong Destroyed the coast, buildings, many casualties
catastrophic The devastation of the coast and the many victims

14. Japan 2011

15. Japan 2011

16. Если цунами внезапно
Immediately close all windows and doors to lock and go up to the top floor. General rule - do not run out of the building firm
Take the safest place in the room - away from windows in the main wall of the arrival of the wave.
If the wave is found you on the street, you will be hooked for a durable item

17. После цунами
Stay in a safe place for at least hours after the arrival of the wave. Wait for the rebound anxiety.

18. Thank you!