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Wednesday, March 16, 2011

Are earthquakes that powerful?

The violent earthquake that stroke Japan recently, shifted it's main island by 8 feet.  You can read about it using the following link:

http://articles.cnn.com/2011-03-12/world/japan.earthquake.tsunami.earth_1_tsunami-usgs-geophysicist-quake?_s=PM:WORLD

Can we use this fact to support any of the theories learned in class?  Explain.

39 comments:

  1. We can use this information to support the theory of continental drift because the theory claims the continents slowly moved into their current location. Using this we can say that numerous earthquakes with large magnitudes hit the Earth over the course of 200 million year ago to move the continents. Along with this we can use other evidence that supports continental drift such as evidence from satellites.

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  2. We can relate this to what we learned in class by using the theory of continental drift. When Pangaea exsisted the continents drifted 1 centimeter per year but in Japan since the eathquakes are still going on then it caused the plates to move 8 feet.

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  3. We can use this fact to support the theory of Continental drift because continental drift id the idea of continent, moving slowly. The quake occurred as the Earth's crust ruptured along an area about 250 miles (400 kilometers) long by 100 miles (160 kilometers) wide, as tectonic plates slipped more than 18 meters. Japan is located along the Pacific "ring of fire," an area of high seismic and volcanic activity stretching from New Zealand in the South Pacific up through Japan, across to Alaska and down the west coasts of North and South America. So I can conclude that the earth's plates are on the move. Also in science channel/history channel shows that volcanic eruptions are increasing all over the world. Mostly at plate boundaries. Scientists are stating that " What created the planet, it will ultimately destroy it".

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  4. ^ adding to my line : "what created our planet, at some point it will ultimately destroy it"

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  5. It is basically like continental drift theory because the land moved. The continents moved slowly to there current locations. When the earthquake happened it moved the land.

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  6. Yes well it depends. If you compare and contrast the one in Japan, Chile, and Haiti to aftershocks then it is powerful. If it is above 6.0 then it is powerful

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  7. The way that it supports it is because of continental drift. Since it moved it shows that the continents do move. The continents are only supposed to move from 1-12 in.a year. Well because of the major earthquake it moved a great amount of length. At this time at least 8 years should have passed

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  8. The earthquake moved Japan 2.4 meters or 8 feet. The earthquake is close to the theory of Continental Drift which states that the continents moved slowly over time to their current locations. Continents moved one to twelve centimeters each year. So, the earthquake in Japan is similar to Continental Drift.

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  9. I Think we can use this information to predict when the next earthquake could happen. Also this theory is actually like continental drift.

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  10. Since the quake shifted japan 8 feet, this can relate to continental drift. i believe that it is really possible that the same exact thing happened to all the continents so that they could be found in their current places.

    Yaaay i fixed the problem

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  11. i can relate the facts i learned from the website to the theory of continental drift we learned in class. when tectonic activities inside the earth trigger an earthquake, a lot of energy is released from the focus, or the epicenter. similarly to this the earthquake in japan moved the country itself about 8 feet! this is how continental drift relates to the article

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  12. I agree that the theory of continental drift is related to what happened in Japan. The earthquake was so strong that it moved the mainland of Japan by 2.4 meters or 8 feet. Continental Drift states that the continents move 1-12 inches per year. Each year it moves about a foot but Japan moved 8 feet which is like it moved in the time span of 8 years.

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  13. I think the website can relate to continental drift theory. The earthquake was very strong in Japan. It was massive and destructive. This earthquake moved Japan 8 FEET!! THAT IS MAJOR! As you can see, this can definitely relate to the theory of continental drift since the theory continental drift stated that Pangaea(all continents together) was separated. The continents would move slowly(1cm per yr). But Japan moved all the way to 8 feet!

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  14. This can relate to the continental drift theory because the continental drift theory states that the continents are divided into sections called plates and move. When Japan moved, it supported this theory.

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  15. "Can we use this fact to support any of the theories learned in class?"

    The theory of continental drift is a theory by a German named Dr. Wegner. He said that the continents slowly drifted to where they are today. We can relate the article to this theory, as the plate moved 8 inches, however not as slowly as the continental drift theory, but still having a great connection.

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  16. This helps support the theory of tectonic plates. This devasting tsunami shifted Japan 8 feet! As plates converge, diverge or transform, the tectonic activity creates earthquakes. As this energy was released, it was powerful enough to create a tsunami. This created enough power and energy to shift Japan. As tectonic activity occured, devasting things happened that caused disaster for many people.

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  17. The strength of an earthquake depends on the fault line. The fault line is where two plate tectonic plate meet. When two plates meet or collide, we feel them as earthquakes. So therefore, the fault line determines how powerful an earthquake will be.

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  18. Hi Zack! Faults lines are not only found at plate boundaries! For example, there are about a dozen fault lines through out NYC, mostly in Manhattan!

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  19. Yes earthquakes are that powerful. Considering that fact that they shaking the earth that requires allot of power to just rattle the ground. An example of vibrations moving things. Put a pen on a desk hit the desk with a large amount of force and the pen will begin to move away or closer to you. The pen in this case is japan and you hitting the desk is the earthquake. Without a tremendousness amount of force the island of japan wouldn't have budged.

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  20. ** the main island of japan wouldn't have budged

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  21. I think that the earthquake that moved Japan's main island by 8 feet and shifted the Earth on its axis is related to a specific topic we learned in class. It is the Continental Drift theory.It states that continents were once joined together and then separated due to Pangaea. In this case, a main island was separated from Japan.

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  22. We can use this information to support the theory of continental drift. Since Japan moved about 8 feet away from its location before the earthquake, we know that plates move. I believe earthquakes are really powerful because we know that continents move about one to twelve centimeters per year. Therefore; the earthquake of 8.9 magnitude was able to move an island about 2.4 meters, which is pretty major. The earthquake that occured also shifted Earth's axis by nearly four inches. If an earthquake can shift the Earth's axis by a lot of inches the earthquake must be powerful.

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  23. Yes we can use this information to support the theory of Continental drift. The Theory of continental drift states that the continents were joined into a land called Pangaea. Since Japan's plate moved from it's original position, it supports the theory of Continental plate.

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  24. The theory of continental drift states that continents move. when tectonic activities inside the earth trigger an earthquake, a lot of energy is released from the focus, or the epicenter.Since Japan moved about 8 feet away from its location before the earthquake, we know that plates move. THis supports the theory of continental drift

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  25. The theory of continental drift can be supported by what happened in Japan. The continental drift says how once the continents were connected once and slowly have moved away. Now you have witnessed that the main island have been shifted the main island eight feet. The powerful earthquake have ,moved it. Now this can support the theory of the continental drift because continental drift is about moving continents or plates. This is proving and supporting the theory because the main island have moved at least eight feet.

    Fawzia Rahman 721

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  26. We can use this fact to support the theories we learned in class because continental drift explains how continents have drifted slowly to their current locations. The earthquake in Japan displays the theory of Continental drift because Japan has moved 8 feet from its recent location. Now it is clear to see what we learned in class and how it is related to what is happening in Japan.

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  27. I think it's continental drift.because in class we learned that continental drift is when tow continents moves apart thats continental drift.

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  28. Actually earthquakes can be as powerfull as you think. The highest earthquake recorded was a magnitude of 10.1 That is powerful.

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  29. we can use this information by supporting the theory of continental drift

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  30. Earthquakes- are really rare but powerful an earth quake --- movement of the ground that occurs when rocks inside Earth pass their elastic limit , break suddenly , and experience elastic rebound (page 178 in the textbook)) THE theory of Continental drift is correct * 8 feet is pretty big movement

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  31. Anything that is higher than 5 on the richter scale is high. i thought it was 7 seven but Mr. Echeverria said 5( wooohooo)

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  32. Any thing above 5 is high on the richter scale i think it's 7 but mr. e said anything over 5 is high.

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  33. I believe that use the fact that Japan's main island had shifted 8 feet to support the theory of continental drift made by Dr. Alfred Wegener. The theory of continental drift states that the continents drifted apart 200 million years ago and is still drifting apart for about 1 to 12 centimeters a year. Japan's main island shifted 8 feet which is a big distance compared to the rate the continents drifted. The earthquake was of 8.9 magnitude.I also believe that if enough energy and force is released an earthquake is that powerful.

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  34. Earthquakes are caused by Plate Tectonics like we learned in class so that's how they are related and the fact that we know how Earthquakes are caused.

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  35. i think earthquakes are created by plate tectonics.thats what MR.E told us

    -Gurpreet Singh
    (sorry for the late comment)

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  36. We can use this information to support the theory of continental drift because the theory claims that the continents slowly moved into their current location. the powerful earthquake let go of an devastating tsunami! Japan's earthquake's magnitude was 8.9. From all this fact and news i believe that this earthquake let out way to much energy which made such a powerful earthquake and it also led to a powerful tsunami.

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  37. Mr.E I AM SOOO SORRY FOR THE LATE COMMENT!!!!!!
    and the last comment was-
    By: Monisha Paul of Class 721

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  38. Yes in certain places earthquakes are powerful because once the plates collide forcefully both plate starts to shake the ground and depending where the earthquake is the earthquake can actually damage that place.But if it was the Grand Canyon for instants the earthquake wouldn't be to dangerous because no-one lives in the Grand Canyon like Mr.E told me and my class

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  39. The earthquake was so strong that it moved the mainland of Japan by 2.4 meters or 8 feet. Continental Drift states that the continents move 1-12 inches per year. Each year it moves about a foot but Japan moved 8 feet which is like it moved in the time span of 8 years. WOW THATS POWERFUL! :D

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