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研究:“超级月亮”与日本地震无关

文章分类:英语综合 发表时间:2013-3-27 21:28:42

研究:“超级月亮”与日本地震无关

  上周六晚现身的“超级月亮”照亮了各国的夜空,同时也打破了其与日本地震相关的传言。据报道,周六晚间月球与地球之间的距离不到36万公里,为两者之间最近的距离,这种现象叫做“最大近地点”,每18年才会发生一次。之前网上传言,“超级月亮”现身期间,地球会出现地震、洪水以及火山爆发等自然灾害。而在日本特大地震发生后,这一说法引起了更多网友的关注。对此,美国地质学家表示,虽然地月距离引发的潮汐变化会对地质活动产生轻微的影响,但日本大地震是多种地质条件共同影响的结果,与“超级月亮”并无明显关联。另外,日本地震发生时月亮并未处于离地球最近的位置,而当时海洋潮汐也处于相对最低潮期间,因此,将日本地震归罪于“超级月亮”是不合理的。

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  The 'maximal perigee' on Saturday night has only a minimal effect on seismic activity and cannot be linked with last week's earthquakes in Japan.
  The rare lunar occurrence, when Earth's natural satellite is only a mere 356,575 kilometers out in orbit, brings the moon to its closest position to Earth.
  This phenomenon of extreme proximity, known as 'maximal perigee,' only occurs once every 18 years. In addition to appearing to be uncommonly big to stargazers, the moon will also be in its full phase. However, what some might see as an interesting astronomical event raises concerns for others.
  Despite opinions being dispersed over the Internet that the 'super moon' will lead to natural disasters such as earthquakes, floods and volcanic eruptions, geologist Bill Burton with the US Geological Survey says that this is unlikely.
  "There are just too many factors that go into seismic activity to make that statement," Burton told Discovery News. "I think you'd be hard pressed to see a difference in tectonic activity during different lunar phases."
  Severe natural disasters such as the earthquake off the coast of Japan last week can raise questions about all of the factors involved. Research geophysicist Malcom Johnston with the USGS says that blaming such events on the moon's orbit is not a new idea.

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