More than a decade ago, Robert Pillitteri's then-girlfriend gave him an antique print of Italy's Mt. Etna.

十多年前，罗伯特？皮列特里(robert Pillitteri)的女友送了一幅义大利埃特纳火山的古董画给他。

youdao

Every day, tiny earthquakes rock Mt Etna, which at 3, 300 meters high, dominates the island of Sicily in southern Italy.

CNN: Keeping track of Etna's pulse

One of the newer technologies used on Mt Etna is thermal imaging.

CNN: Keeping track of Etna's pulse

Mt Etna is changing all the time.

CNN: Keeping track of Etna's pulse