科学家发现比较大的水下火山爆发

Scientists claim to have recorded the largest ever underwater volcanic eruption, off the coast of Africa.

科学家声明，记录到了非洲海岸有史以来最大的水下火山喷发。

The discovery was made after seafloor maps from a research mission revealed a new volcano formation made up of five cubic kilometres of erupted magma, Science magazine reports.

《科学》杂志报道，通过海底地图，可以发现这海底火山已喷出5立方公里岩浆。

The underwater volcano is said to have formed over a period of six months and is 800m high and 5kms wide.

而这座海底火山的生成只用了短短6个月时间，离海底约为0.8公里，直径为5公里。

The detection came after a strange seismic event in November last year near the island of Mayotte in the Indian Ocean between Madagascar and Mozambique.For the past 12 months, the 250,000 residents of the French island had been experiencing a series of small earthquakes almost daily, Science magazine reports.

去年11月，在马达加斯加和莫桑比克之间的印度洋马约特岛附近，发生了一次奇怪的地震事件。在之后12个月里，这座法国岛屿上的25万居民几乎每天都会经历一系列小地震。

The French government launched a scientific mission in June 2018 involving the ship Marion Dufresne.

在2018年6月，法国政府启动了一项Marion Dufresne号科考任务，在这一任务中发现了此次火山喷发。

“We have never seen anything like this,” Nathalie Feuillet, a lead researcher on the Marion Dufresne and the Institute of Geophysics in Paris told the magazine.

船上的巴黎地球物理研究所科学家Nathalie Feuillet表示，我从未见过这样的事情。

The ship’s sonar detected trails of “bubble-rich” water rising from the volcano. When crew members from the Marion Dufresne combed rocks from the volcano they released high-pressure gas.

船上的声纳探测到从火山口涌出的“泡沫丰富”的水迹。当MarionDufresne号的船员们从火山上梳理岩石时，岩石身上释放出了高压气体。

“They were popping as we brought them on board,” Feuillet said.

“我们把岩石带上船的时候，它们还在砰砰作响，”费利特说。

University of Oxford volcanologist Mike Cassidy told Science magazine the underwater volcano is likely to be too deep to cause a tsunami onshore.

牛津大学火山学家迈克·卡西迪告诉《科学》杂志，水下火山可能太深，不会在水面引发海啸。