《中英對照讀新聞》This Strange Hum Circled the Whole World 怪怪的嗡嗡聲迴盪全球


2018-12-10 06:00

◎劉宜庭

There was a hum that nobody could hear. It was a seismic event, one that originated off the coast of Mayotte on Nov. 11, a tiny island in the waters between Madagascar and Mozambique.

那是一段沒人能聽見的嗡嗡聲。它是一次地震事件,11月11日發生在馬約特島的海岸周遭,這座小島位於馬達加斯加島、莫三比克之間的海域。

The hum, National Geographic reported, was strange for a number of reasons. First, it rang at just a single ultra-low frequency, like a well-tuned bell. Second, the wave emerged and circled the planet without the usual signs of an earthquake; no one in the area felt any shaking. And yet, a Nov. 12 report from the French government found that Mayotte had slid 2.4 inches(6 centimeters)to the east and 1.2 inches(3 cm)to the south.

國家地理雜誌報導,這段嗡嗡聲的不尋常之處很多。首先,它只包含一段超級低頻波,宛如純律鐘聲。再者,震波產生後傳至全球,卻沒有出現地震的一般現象;震央地區沒有人感覺到地表發生任何晃動。而法國政府11月12日發布的報告顯示,馬約特島已經往東滑動2.4吋(6公分)、往南滑動1.2吋(3公分)。

Scientists have proposed a number of possible explanations for the strange seismic event near Mayotte. But none is yet anywhere near confirmed.

科學家已經提出許多針對馬約特島奇怪地震事件的可能解釋。但至今沒有任何假說獲得證實。

Perhaps a "slow earthquake" struck the area, the sort that doesn’t cause much intense shaking because it occurs over a much longer period of time. Perhaps a bubble of magma squeezed past below the surface. Researchers even speculated about a meteor strike, though that seems unlikely. For now, the exact cause remains a mystery.

或許是「慢地震」襲擊該地區,這類地震不會引起劇烈搖晃,因為它的發震持續時間較長。也或許是有岩漿氣泡擠壓過地表之下。研究人員甚至猜測是隕石撞擊,儘管看起來不大可能。直到現在,該次地震事件的確切成因仍是個謎團。

新聞辭典

seismic:形容詞,地震的。例句:Seismic waves usually involve lots of different frequencies.(地震波通常包含許多不同的頻率。)

earthquake:名詞,地震。例句:The slow earthquakes can be classified into several groups as low-frequency earthquake, tremor, very-low-frequency earthquake or slow-slip event.(慢地震可分為幾類:低頻地震、長微震、超低頻地震、慢滑移事件。)

magma:名詞,岩漿。例句:There is a magma chamber 20 kilometers beneath the Wanli and Jingshan districts of New Taipei.(新北市萬里區、金山區地底下20公里處有岩漿庫。)

  • 一段超級低頻地震波(紅線標示範圍內)11月11日自馬約特島產生後,傳至全球,但沒有任何人察覺到地表晃動。該次地震事件的成因迄今仍是個謎團。(取自網路)

    一段超級低頻地震波(紅線標示範圍內)11月11日自馬約特島產生後,傳至全球,但沒有任何人察覺到地表晃動。該次地震事件的成因迄今仍是個謎團。(取自網路)