"It's very common for the two to be linked," said Jonathan Snow, a volcanologist at the University of Houston.

“把这两者联系起来也是很平常的。”休斯敦大学的一位火山学家乔纳森·斯诺这样说。

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“The biggest problem the Indonesians face, ” said a volcanologist, “is getting the local people to believe what the scientists say.”

一位火山学家说，“印尼人面对的最大问题是如何让当地人相信科学家的话。”

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For much of the past 15 years, with funding from the European Union, the Italian volcanologist has struggled to focus the scientific community's attention on Nyiragongo.

过去十五年大部分时间里，在欧盟的资助下，这位意大利火山学家一直力争让科学界的注意力集中到尼拉贡戈火山。

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The fineness of the ash in this case is unusual, says Thorvaldur Thordarson, an Icelandic volcanologist.

ECONOMIST: Volcanoes and air travel: Small eruption in Iceland | The

On the northern side of the volcano, participants can watch lava spew out of the Earth from a tented camping site 1.5 kilometers away, which has been deemed safe by a volcanologist.

CNN: Congo's erupting volcano boosts tourism

Volcanologist Sonia Calvari, of the Institute of Geophysics and Volcanology in Catania (INGV-CT), said rapid advances in technology enable experts to use a wide range of methods to continually map and monitor Etna from a distance.

CNN: Keeping track of Etna's pulse