Qualla: Campanian Ignimbrite Eruption

Campanian Ignimbrite Eruption: Introduction

Mon, 23 Mar 2026 00:00:00 GMT

Photo credit No machine-readable author provided. Siim assumed (based on copyright claims)., CC BY-SA 3.0. Somewhere around 39,000 years ago, the ground west of what is now Naples tore itself apart. The eruption column punched 39 kilometers into the stratosphere -- higher than commercial aircraft fly today -- and in roughly 20 hours expelled 7.8 cubic kilometers of magma. Ash blanketed the eastern Mediterranean. Temperatures across Western Europe plunged. And in caves scattered from southern Italy to the Balkans, Neanderthals and early modern humans alike faced a world that had suddenly, violently changed. The Campanian Ignimbrite eruption, ranked 7 on the Volcanic Explosivity Index, was the most powerful volcanic event in Europe in the past 200,000 years. The caldera it carved still simmers beneath the western suburbs of Naples.

Image: No machine-readable author provided. Siim assumed (based on copyright claims). | CC BY-SA 3.0

Campanian Ignimbrite Eruption: The Burning Fields

Mon, 23 Mar 2026 00:00:00 GMT

Photo credit Wikirictor, CC BY-SA 4.0. The ancient Greeks and Romans knew this ground was dangerous. They called it the Phlegraean Fields -- the "burning fields" -- and the name was not metaphorical. The caldera is a nested structure composed of the older Campanian Ignimbrite caldera, the younger Neapolitan Yellow Tuf...

Image: Wikirictor | CC BY-SA 4.0

Campanian Ignimbrite Eruption: Twenty Hours That Remade the Landscape

Mon, 23 Mar 2026 00:00:00 GMT

Photo credit Wikirictor, CC BY-SA 4.0. The eruption unfolded in a sequence that volcanologists have reconstructed from the deposits it left behind. It began with an intense Plinian phase in the northeastern sector of the caldera. The eruption column rose first to 29 kilometers, then peaked at 39 kilometers, before wan...

Image: Wikirictor | CC BY-SA 4.0

Campanian Ignimbrite Eruption: A Volcanic Winter at the Edge of an Ice Age

Mon, 23 Mar 2026 00:00:00 GMT

Photo credit Wikirictor, CC BY-SA 4.0. The eruption's consequences reached far beyond Campania. Petrological studies indicate the magma contained 50 to 250 million tonnes of sulfur dioxide, which the eruption injected into the stratosphere as sulfur aerosols. Climate simulations using the Community Earth System Model ...

Image: Wikirictor | CC BY-SA 4.0

Campanian Ignimbrite Eruption: Neanderthals, Modern Humans, and a Line in the Ash

Mon, 23 Mar 2026 00:00:00 GMT

Photo credit Wikirictor, CC BY-SA 4.0. For decades, researchers debated whether the Campanian Ignimbrite eruption contributed to the extinction of Neanderthals. The hypothesis was seductive: a supervolcanic event devastating enough to trigger a volcanic winter might have pushed an already declining species past the po...

Image: Wikirictor | CC BY-SA 4.0

Campanian Ignimbrite Eruption: Still Breathing

Mon, 23 Mar 2026 00:00:00 GMT

Photo credit Norbert Nagel, CC BY-SA 3.0. The Phlegraean Fields have erupted many times since the Campanian Ignimbrite event, most notably in the Neapolitan Yellow Tuff eruption around 15,000 years ago. The most recent eruption occurred in 1538, creating the cinder cone of Monte Nuovo. Today, nearly a million people live...

Image: Norbert Nagel | CC BY-SA 3.0