What are some of the secondary effects of a tsunami?
Secondary effects However, contaminated water and food supplies as well as the lack of shelter and medical care may have a secondary effect of worsening illnesses that already exist in the affected region. Decaying bodies create very little risk of major disease outbreaks.
What effects did the Indian Ocean tsunami have?
](i)humanitarian toll: it affected more than 18 countries from Southeast Asia to Southern Africa, killing more than 250,000 people in a single day and leaving more than one million homeless,(ii)economic toll: it left several million of dollars of economic loss affecting fishing and tourist industries,(iii)environmental …
What is tsunami write about the two effects of the tsunami?
Explanation: Generally tsunamis arrive, not as giant breaking waves, but as a forceful rapid increase in water levels that results in violent flooding. However, when tsunami waves become extremely large in height, they savagely attack coastlines, causing devastating property damage and loss of life.
What impact did the 2004 tsunami have on the environment?
Environmental impacts of the tsunami Farm land ruined by salt water. 8 million litres of oil escaped from oil plants in Indonesia. Mangrove forests along the coast were destroyed. Coral reefs and coastal wetlands damaged.
What are causes and effects of tsunami?
A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor. This force creates waves that radiate outward in all directions away from their source, sometimes crossing entire ocean basins.
What is tsunami and its cause and effect?
What were the effects of the tsunami Class 7?
The wave was the result of an earthquake with the epicentre close to Sumatra. The 2004 tsunami killed almost 2,00,000 people, destroyed property and 1000s of miles of coastline, leaving millions of people homeless. The devastation was so much that it completely washed away some of the islands in the Indian Ocean.
What is tsunami and its effects?
A tsunami is a disastrous ocean wave, usually resulting from an underwater earthquake, coastal landslide, or volcanic eruption. It is a Japanese word that means “harbor wave”. It can be also defined as a series of waves in a water body.
How did the 2004 tsunami affect plants?
The tsunami littered the paddy fields with debris and sediments, destroyed irrigation infrastructure and washed the soil of organic matter. Flooding also resulted in an increase in soil salinity. Because of its proximity to the quake’s epicenter, land levels in Aceh were altered by 1-2 meters.
What are the effects on the environment after a tsunami?
Environmental impacts A tsunami changes the landscape. It uproots trees and plants and destroys animal habitats such as nesting sites for birds. Land animals are killed by drowning and sea animals are killed by pollution if dangerous chemicals are washed away into the sea, thus poisoning the marine life.
How is primary wave related to secondary wave?
There are two types of seismic waves, primary waves and secondary waves. Primary waves, also known as P waves or pressure waves, are longitudinal compression waves similar to the motion of a slinky (SF Fig. 7.1 A). Secondary waves, or S waves, are slower than P waves.
What are the effects of a tsunami on humans?
Tsunamis can have a devastating effect on human lives. They can destroy homes, change landscapes, hurt economies, spread disease and kill people.
How did the Indian Ocean tsunami affect the hydrosphere?
Some places most affected by tsunamis are Aleutian Islands, Chile, Philippines, and Japan. Impact on the hydrosphere: the water becomes polluted because the waves pull all the destructive waste, sewage and industrial chemicals back into the ocean.