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Study: Volcanic Eruptions Brought the Black Death to Europe

A 1345 tropical volcanic eruption cooled Mediterranean climates, causing famine and forcing grain imports that likely introduced plague-carrying fleas, sparking the Black Death, which killed up to half of Europe.

  • A massive volcanic eruption around 1345 caused temperatures to drop sharply for several years due to volcanic ash and gases blocking sunlight, leading to crop failures in the Mediterranean region.
  • To avoid starvation, Italian city-states imported grain from areas around the Black Sea, inadvertently bringing plague-carrying fleas that spread the Black Death to Europe.
  • The Black Death, caused by the bacterium Yersinia pestis, swept across Europe in 1348-49, killing up to half of the population.
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Center

A huge volcanic eruption may have triggered a chain reaction that led to the most devastating pandemic in European history: the Black Death, which between 1345 and 1353 killed between a third and a half of Europe's population at the time.

·Romania
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A new research proposed that volcanic activity in the tropics during the 14th century directly influenced the appearance and spread of black plague in Europe.The finding was published in the journal Communications Earth & Environment and developed by the Leibniz Institute of History and Culture of Eastern Europe (Germany) in conjunction with the University of Cambridge (UK).According to the study, the volcanic eruption would have generated sever…

Lean Left

We have long known that the plague was spread by rats and fleas, but now it has also been revealed how these animals came to Europe.

Lean Right

The disease devastated the European continent in the 14th century. Scientists have now discovered an eruption that will have caused a "dominant effect" that has spread the plague through the Mediterranean routes.

·Portugal
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The Telegraph broke the news in London, United Kingdom on Thursday, December 4, 2025.
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