VOA慢速英語：白頭山(即長白山)即將噴發(fā)

白頭山(即長白山)即將噴發(fā)

A volcano in North Korea is at risk of erupting, according to scientists.

科學家表示，朝鮮一火山目前有噴發(fā)的危險。

Scientists say Mount Paektu, on the border of North Korea and China, had one of the largest eruptions in history. That eruption took place around the year 946.

科學家表示位于中朝邊境的白頭山(即長白山)史上曾有過大規(guī)模的噴發(fā)。那次火山爆發(fā)發(fā)生于約946年。

In 2013, researchers placed seismometers on Mount Paektu. These meters measured seismic waves beneath the volcano. Seismic waves are waves in the earth produced by an earthquake.

2013年，研究人員把地震檢波器放到白頭山，測量火山地下的地震波。地震波是由地震產(chǎn)生的到達地面的波段。

The volcano had been quiet until 2002. Then earthquakes started until 2005. Now, scientists have discovered soft and melted rock beneath Mount Paektu. They say magma is rising to the surface, and that proves the volcano is active.

該火山直到2002年都沒有要噴發(fā)的跡象。2005年發(fā)生地震。目前，科學家在白頭山地下發(fā)現(xiàn)柔軟和已融化的巖石，并表示巖漿已到達地表。這證明火山現(xiàn)在很活躍。

The U.S. State Geological Service defines an active volcano as any volcano that has had at least one eruption during the past 10,000 years.

美國國家地質(zhì)調(diào)查局將在過去1萬年內(nèi)發(fā)生過至少一次噴發(fā)以上的火山定義為活火山。

Mount Paektu is the tallest mountain in North Korea. Its elevation is close to 2,700 meters.

白頭山是朝鮮最高的山，海拔約為2700米。

The information from the study was published in Science Advances journal.

該消息來自于科學雜志。