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Volcanology

Deciphering unrest at Campi Flegrei

Nature Geoscience volume 18, pages 115–116 (2025)Cite this article

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The cause of episodes of unrest at caldera volcanoes is often unclear. Analysis of the sulfur composition of gas emissions at Campi Flegrei in Italy suggests a magmatic origin of the recent unrest at this hazardous caldera.

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Fig. 1: Gas emissions from a fumarole in the Solfatara crater in the Campi Flegrei caldera.

Antonio Busiello / Alamy Stock Photo

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Authors and Affiliations

  1. Institut des Sciences de la Terre d’Orléans, UMR 7327, CNRS–Université d’Orléans–BRGM – Université d’Orléans, Orléans, France

    Bruno Scaillet

  2. Dipartimento di Scienze della Terra, Università degli Studi di Firenze, Florence, Italy

    Raffaello Cioni

  3. Department of Geography, University of Cambridge, Cambridge, UK

    Clive Oppenheimer

  4. Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Etneo, Catania, Italy

    Clive Oppenheimer

Authors
  1. Bruno Scaillet
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  2. Raffaello Cioni
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  3. Clive Oppenheimer
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Correspondence to Bruno Scaillet.

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The authors declare no competing interests.

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Scaillet, B., Cioni, R. & Oppenheimer, C. Deciphering unrest at Campi Flegrei. Nat. Geosci. 18, 115–116 (2025). https://doi.org/10.1038/s41561-025-01640-4

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