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[report整理] SENEWS-2011-03-21

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[Homework]SENEWS-2011-03-21

This is the VOA special English techonolgy report
A powerful earthquake struck the northeast coast of Japan at 2:46pm local time on 3.11. Japan's media relogical agency released its tsunami warnings just three minutes later. The country has one of the best earthquake early warning system in the world, there are more than 4000 science-make intensity meters in place throughout Japan to measure earthquake activity. These meters provide information within 2 minutes .. earthquake happening. Information about the strick and the center of the earthquake can be learned within 3 minutes. There were also .. sea walls around the much of the Japanese coastline, but this measures proved no match for the powerful earthquake and tsunami. C is a tsunami expert with a department of siv..and environmental engineering at the unversity of S in Los Angeles.
Japan is one of the most well be .. countries on earth ..and tsunami warnings, they had warning, I think what
He says there are two reasons for this, Japan has not had any event anywhere near as biggest this one in the last 150 years and scientists had not expected such a large earthquake happening of the coast in Japan. The 9.0 magnitude earthquake was the 4th most powerful earthquake ever recorded worldwide. It was also the worst earthquake ever to hit Japan. The tsunami waves that followed were reported to have reached as high as 30 meters in some areas. C says Japan's con.. sea walls were not built to handle such high waves.
The c. sea walls in many places in Japan about 7 meters .. and some are about 3 meters .., so that .. they were not expecting .. such size of wave
A tsunami wave can travel as fast as 800km per hour. To get a higher ground, people would often have to travel for many kilometers, this can take more time than the fast travelling tsunami will permit. This is especially to in cases like Japan where the center of the earthquake struck so close to the coastline. The tsunami waves followed almost immediately. Experts say only warning system will continue to be limited by its facts until earthquake and tsunamis can be predicted
And that is the VOA special english technology report, writen by J. You can find more news about the disaster in Japan at our webset voaspecialenglish.com You can also find trans.. , mp3 and par.. of our reports. and you can find us on facebook and youtube at voalearningenglish, I am S

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