Earthquake Aftermath: Tsunami Effects

  • Thread starter chound
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In summary, the two earthquakes that have taken place recently in Pakistan and Indonesia are unrelated, and both are due to the movement of different plates. The Indian sub-continent is moving at an average rate of 1.6 inches per year, and is expected to continue doing so for many millenia. There is a slight increase in seismic activity in the Ring-of-Fire on the western side of the Pacific Ocean, and the Sumatran extension.
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  • #2
In a word- no. The two locations are nowhere near each other.
 
  • #3
chound said:
Is this an after effect of the tsun...eqsww/Quakes/quakes_all.html[/PLAIN] [Broken]
 
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  • #4
So will we be seeing more earthquakes in the indian ocean plate?
I have to get my houses insured!
 
  • #5
The Himalaya mountains were formed by upthrust of the Earth's crust as the Arabian, Indian and Australian plates are pushing against the Eurasion plate.

See - http://en.wikipedia.org/wiki/India_Plate
http://en.wikipedia.org/wiki/Image:Tectonic_plates.png

The regions (and adjacent areas) containing mountains: Balkans in SE Europe; Causaus in Turkey, Iran, Georgia, Armenia, Azerbaijan; and Himalayas/Pamirs/TienShan in Afghanistan, Pakistan, India, China, Nepal, Bhutan, Burma, will see earthquakes for many millenia (probably millions of years) to come.

Also, Indonesia and Philippines, will see more earthquakes and perhaps very strong ones. The countries around the Indian and Pacific Oceans are at risk of tsunami.
 
  • #6
like Astronuc says, yes there will be more. If you meant "will there be more compared to normal", areas of fault systems can become more and less active over time, but over the plate boundary in general, I wouldn't expect there to be more earthquakes than normal.

If you are concerned about insuring properties, you should look into the seismic risk of the specific area. Not all areas of India are at high risk from earthquakes, as the fault zone lies mainly in the north near the himalayas where the Indian plate collides with the Eurasian plate.. Some information and seismic risk maps can be found here: http://asc-india.org/info/seisindia.htm [Broken]
 
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  • #7
Besides monitoring earthquakes and seismic activity in my spare time, I also watch on-going and new volcanic activity. This started when an associated photographed a volcano, Asayama, which had abruptly erupted near his home.

http://www.everything-science.com/index.php?option=com_smf&Itemid=82&topic=5443.0

http://www.everything-science.com/index.php?option=com_smf&Itemid=82&topic=5244.0

http://www.everything-science.com/index.php?option=com_smf&Itemid=82&topic=6404.0

http://www.everything-science.com/index.php?option=com_smf&Itemid=82&topic=5538.0

Since 2003, there seems to be a slight increase in seismic activity in the Ring-of-Fire on the western side of the Pacific Ocean, and the Sumatran extension.

Interestingly, there are two volcanos in the Andaman Islands - one on Barren Island and the other on Narcondum Island. The current eruption of Barren Island began on 28 May 2005, but it seems to be low level. This is the northern end of the fault zone that ruptured causing the tsunamis of Dec 26, 2004.

http://vulcan.wr.usgs.gov/Volcanoes/IndianOcean/description_indian_ocean_volcanoes.html

There may very well be a surge in volcanic and seismic activity in association with the Indian plate. There is also recent activity of a volcano in Ethiopia.

So, all people in all countries bordering the Indian Ocean should be aware that there are risks of earthquakes, volcanoes and tsunamis - perhaps for a while. Northern Sumatra is still getting earthequakes regularly with mag 5+, particularly along the Sunda trench.
 
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1. What causes a tsunami after an earthquake?

Tsunamis are caused by a sudden displacement of water, usually due to an earthquake, volcanic eruption, or underwater landslide. When an earthquake occurs under the ocean, the force and movement of the seismic waves can cause a large amount of water to be moved, creating a tsunami.

2. How long after an earthquake can a tsunami occur?

A tsunami can occur within minutes after an earthquake, but it can also take several hours for one to form and reach the coastline. It depends on the location and magnitude of the earthquake and the distance from the earthquake to the coast.

3. What are the effects of a tsunami on the environment?

Tsunamis can have devastating effects on the environment, including erosion of shorelines, damage to coral reefs and other marine habitats, and contamination of freshwater sources. They can also cause significant damage to coastal ecosystems, such as mangrove forests and wetlands.

4. How do tsunamis impact human populations?

Tsunamis can cause widespread destruction and loss of life, as they can travel at high speeds and have immense force. They can also cause long-term economic and social impacts, such as displacement of communities, destruction of infrastructure, and disruption of local economies.

5. Can tsunamis be predicted?

While it is not possible to predict exactly when and where a tsunami will occur, scientists and researchers use various methods to monitor and detect potential tsunamis. This includes using seismometers to detect earthquakes, ocean buoys to measure changes in sea level, and computer models to simulate potential tsunami scenarios.

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