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tSUNAMIS
Nyle Rizvi
What causes a tsunami?
- Sudden movements of the ocean due to:
- earthquakes
- landslides on the sea floor
- land slumping into the ocean
- meteorite impact in the ocean
Where does it occur and why?
Where does it occur and why?
- Mediterranean Sea Region
- Carribean Sea
- Pacific Ocean and Indonesia because of the Pacific Rim that borders the ocean
- large number of active earthquake zones around Pacific
SCIENTISTS
SCIENTISTS
- called physical oceanographers
- also study waves, currents, eddies, gyres, and tides
How do they get measured?
- NOAA's DART System
- real time monitoring systems that provide data for forecasting tsunamis
- installed in earthquake prone areas throughout the ocean, including the Indian and Pacific basins
How do they get measured?
Five Intriguing Facts Part I
- Tsunami = Japanese word meaning harbor wave
- Animals sense a tsunami coming through their superior sense of hearing
- when water along the shoreline begins to recede dramatically, a tsunami will follow in a few seconds or minutes
Five Intriguing Facts Part II
- When tsunamis are near the coast, they slow down, but increase in height
- travel at speeds of up to 500 miles per hour, almost as fast as a jet plane
Factual Answers
- flooding lasts for several weeks causing destruction, damage, death and injury
- types of tsunamis:
- local
- regional
- distant
- speeds of tsunamis:
- 500 miles per hour in deep sea
- 45 miles per hour at the tide going up to 5 miles inland
Analytical Answers
- If you live in a tsunami prone area, you are at risk from dying from a tsunami
- When tsunamis approach, people panic and other countries will try to send in supplies to help after the tsunami has ended
- To have a tsunami, an area has to have submarine earthquakes, landslides, large calving icebergs, explosive volcanic eruptions in the ocean (or near its coast), slides of land into the ocean, the impact of a meteorite or comet into the ocean (or on land near the coast) even large explosions of ships in harbors can cause local tsunamis
Evaluative Answers
Evaluative Answers
- The value of rebuilding a tsunami-prone area allows researchers to develop safer homes and buildings before they become a greater threat
- It is very important to be careful if you are in a tsunami-prone area, because if you aren't, you could die from one
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