日本地震扭转了地球，Japan’s earthquake shifted bala ...

http://news.yahoo.com/s/yblog_thelookout/20110314/ts_yblog_thelookout/japans-earthquake-shifted-balance-of-the-planet




Japan’s earthquake shifted balance of the planet




The quake caused a rift 15 miles below the sea floor that stretched 186 miles long and 93 miles wide, according to the AP. The areas closest to the epicenter of the quake jumped a full 13 feet closer to the United States, geophysicist Ross Stein at the United States Geological Survey told The New York Times.

]
The 9.0 magnitude quake (the fourth-largest recorded since 1900) was caused when the Pacific tectonic plate dove under the North American plate, which shifted Eastern Japan towards North America by about 13 feet (see NASA's before and after photos at right). The quake also shifted the earth's axis by 6.5 inches, shortened the day by 1.6 microseconds, and sank Japan downward by about two feet. As Japan's eastern coastline sunk, the tsunami's waves rolled in.
Why did the quake shorten the day?  The earth's mass shifted towards the center, spurring the planet to spin a bit faster. Last year's massive 8.8 magnitude earthquake in Chile also shortened the day, but by an even smaller fraction of a second. The 2004 Sumatra quake knocked a whopping 6.8 micro-seconds off the day.
After the country's 1995 earthquake, Japan placed high-tech sensors around the country to observe even the slightest movements, which is why scientists are able to calculate the quake's impact down to the inch. "This is overwhelmingly the best-recorded great earthquake ever," Lucy Jones, chief scientist for the Multi-Hazards project at the U.S. Geological Survey, told The Los Angeles Times.
The tsunami's waves necessitated life-saving evacuations as far away as Chile. Fisherman off the coast of Mexico reported a banner fishing day Friday, and speculated that the tsunami knocked sealife in their direction.
(An energy map provided by NOAA shows the intensity of the tsunami caused by Japan's earthquake: Reuters/NOAA. Below, Satellite image of Japan's coast moving: NASA.)
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日本地震扭转地球平衡

上个星期发生在日本的灾难性地震和海啸，使得日本岛移向美国本土，并且偏转了地球的轴心。

根据美联社的报道，地震使海床裂开了一道长186英里，宽93英里的巨大缝隙。美国地址调查局的地理学家罗斯·斯坦因对纽约时报说，靠近震中的地区向
美国方向靠近了13英尺。

太平洋地壳构造板块插入到北美板块下，造成了这次9.0级的地震（1900年以来第四大地震），使得东日本岛向美国移动了大约13英尺（据NASA的前后对照
照片显示），也使地轴偏转了6.5英尺，一天缩短了1.6微妙，日本岛下降了大约两英尺。因为日本东部海岸线下沉，海啸就来了。

为什么地震使一天变短？地球的惯性质量相对于地心的扭转，使得地球转的快了一点。去年的智利8.8级大地震也使一天缩短了不到一秒。2004年的苏门答
腊地震使地球慢了6.8毫秒。

从1995年地震后，日本在全国周围安放了高技术传感器，以观测哪怕是小小的移动，因此科学家能计算出英尺级的地震影响。美国地址调查局多元危害项目
的首席科学家露西·琼斯对洛杉矶时报说，这是前所未有的对于地震最佳的记录。

面对海啸，对于遥远的智利救援也是必要的。墨西哥出海的渔夫在星期五的吃鱼节报告了动向，推测海啸抵达了他们那里。

（美国国家海洋大气管理局提供的地震能量地图，显示了日本地震引起的海啸强度，下面的图是NASA提供的显示日本海岸线移动的卫星地图）




求指正，渔民那句我没看懂

http://news.yahoo.com/s/yblog_thelookout/20110314/ts_yblog_thelookout/japans-earthquake-shifted-balance-of-the-planet




Japan’s earthquake shifted balance of the planet




The quake caused a rift 15 miles below the sea floor that stretched 186 miles long and 93 miles wide, according to the AP. The areas closest to the epicenter of the quake jumped a full 13 feet closer to the United States, geophysicist Ross Stein at the United States Geological Survey told The New York Times.

]
The 9.0 magnitude quake (the fourth-largest recorded since 1900) was caused when the Pacific tectonic plate dove under the North American plate, which shifted Eastern Japan towards North America by about 13 feet (see NASA's before and after photos at right). The quake also shifted the earth's axis by 6.5 inches, shortened the day by 1.6 microseconds, and sank Japan downward by about two feet. As Japan's eastern coastline sunk, the tsunami's waves rolled in.
Why did the quake shorten the day?  The earth's mass shifted towards the center, spurring the planet to spin a bit faster. Last year's massive 8.8 magnitude earthquake in Chile also shortened the day, but by an even smaller fraction of a second. The 2004 Sumatra quake knocked a whopping 6.8 micro-seconds off the day.
After the country's 1995 earthquake, Japan placed high-tech sensors around the country to observe even the slightest movements, which is why scientists are able to calculate the quake's impact down to the inch. "This is overwhelmingly the best-recorded great earthquake ever," Lucy Jones, chief scientist for the Multi-Hazards project at the U.S. Geological Survey, told The Los Angeles Times.
The tsunami's waves necessitated life-saving evacuations as far away as Chile. Fisherman off the coast of Mexico reported a banner fishing day Friday, and speculated that the tsunami knocked sealife in their direction.
(An energy map provided by NOAA shows the intensity of the tsunami caused by Japan's earthquake: Reuters/NOAA. Below, Satellite image of Japan's coast moving: NASA.)
-------------------------------
日本地震扭转地球平衡

上个星期发生在日本的灾难性地震和海啸，使得日本岛移向美国本土，并且偏转了地球的轴心。

根据美联社的报道，地震使海床裂开了一道长186英里，宽93英里的巨大缝隙。美国地址调查局的地理学家罗斯·斯坦因对纽约时报说，靠近震中的地区向
美国方向靠近了13英尺。

太平洋地壳构造板块插入到北美板块下，造成了这次9.0级的地震（1900年以来第四大地震），使得东日本岛向美国移动了大约13英尺（据NASA的前后对照
照片显示），也使地轴偏转了6.5英尺，一天缩短了1.6微妙，日本岛下降了大约两英尺。因为日本东部海岸线下沉，海啸就来了。

为什么地震使一天变短？地球的惯性质量相对于地心的扭转，使得地球转的快了一点。去年的智利8.8级大地震也使一天缩短了不到一秒。2004年的苏门答
腊地震使地球慢了6.8毫秒。

从1995年地震后，日本在全国周围安放了高技术传感器，以观测哪怕是小小的移动，因此科学家能计算出英尺级的地震影响。美国地址调查局多元危害项目
的首席科学家露西·琼斯对洛杉矶时报说，这是前所未有的对于地震最佳的记录。

面对海啸，对于遥远的智利救援也是必要的。墨西哥出海的渔夫在星期五的吃鱼节报告了动向，推测海啸抵达了他们那里。

（美国国家海洋大气管理局提供的地震能量地图，显示了日本地震引起的海啸强度，下面的图是NASA提供的显示日本海岸线移动的卫星地图）




求指正，渔民那句我没看懂