官方APP下载:英语学习播客(支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
公众微信服务号(英语全能特训)
英语全能特训(微信公众服务号)
UNSV英语学习频道淘宝网店
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月

Island Turns into Open-Air Lab for Volcanologists

作者:Gregory Stachel 发布日期:12-6-2021

Scientists from around the world are going to La Palma to see a volcanic eruption, where melted rock and gas is released from the earth. La Palma is one of Spain's Canary Islands in the Atlantic Ocean. They are using advanced technologies to study the eruption from land, sea, air, and even space.

The goal of the study is to better understand volcanic eruptions: how they form, develop, as well as how and when they end.

Even with recent advances in technology and science, the researchers can only estimate what happens underground. The magma melts any human made equipment.

Pedro Hernández is an expert with the Canary Island's volcanology institute, Involcan. He said there has been a lot of progress in understanding how the Earth works in the last 30 to 40 years, "but it's still difficult to know for sure what happens at 40 to 80 kilometers of depth."

"We are probably beginning to know the stars better than what happens under our feet," he said.

Volcanic eruptions happen in the Canary Islands once, or at most, twice in a person's life. Some of the Canary Islands are still increasing their land area from this activity.

When signs of growing amounts of magma happened, scientists began looking for signs, like earthquakes, of an upcoming eruption. They did not know the exact time of the eruption. But their studies permitted officials to begin the first evacuations just hours before the eruption took place on September 19.

One man died in November when he fell while cleaning volcanic ash, but there have been no deaths directly linked to the eruption.

Much of that is due to new technologies in volcanology.

Involcan has been producing daily reports that help officials on La Palma decide to order an evacuation or issue lockdowns when the air becomes unbreathable. This means studying extremely large amounts of information from important locations.

Most of the scientists' work has been predicting the effects of the volcano's damage to the community. It has already lost thousands of farms, roads, houses, and crops. But the question of when the eruption will end has been ongoing.

Hernández said it would take two weeks of steady studying to establish if the volcano's activity is slowing.

Esteban Gazel is a geochemist with Cornell University in New York. He said the Canary Islands are closely connected to activity going all the way to the center of the earth. It makes it even more difficult to make predictions.

"It's like treating a patient," he said. "You can monitor how (the eruption) evolves, but saying exactly when it will die is extremely difficult."

I'm Gregory Stachel.

Aritz Parra and Emilio Morenatti reported this story for Voice of America. Gregory Stachel adapted it for VOA Learning English. Susan Shand was the editor.

Words in This Story

erupt v. to send out rocks, ash, lava in a sudden explosion

magma n. hot liquid rock below the surface of the Earth

evacuate v. to remove (someone) from a dangerous place

monitor – v. to watch, observe, listen to, or check (something) for a special purpose over a period of time

evolve – v. to change or develop slowly often into a better, more complex, or more advanced state

版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏公网安备 32010202011039号苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台