Rick Lieberman
Search results
Supervolcanoes occur when magma in the mantle rises into the crust but is unable to break through it. Pressure builds in a large and growing magma pool until the crust is unable to contain the pressure and ruptures. This can occur at hotspots (for example, Yellowstone Caldera) or at subduction zones (for example, Toba). [ 3 ][ 4 ]
The term "supervolcano" implies a volcanic center that has had an eruption of magnitude 8 on the Volcano Explosivity Index (VEI), meaning that at one point in time it erupted more than 1,000 cubic kilometers (240 cubic miles) of material.
Mar 19, 2019 · According to the United States Geological Survey, a volcano is considered “super” if it has had at least one explosion that released more than 240 cubic miles of material—a little more than twice...
Nov 1, 2023 · Both Campi Flegrei and the Long Valley Caldera are known as supervolcanoes, a term used to describe a volcano that at one time has erupted more than 240 cubic miles of material.
A volcano is categorised as a supervolcano if it can produce a magnitude-eight eruption on the Volcanic Explosivity Index, discharging more than 1,000 cubic kilometres of material. These eruptions are sometimes called 'super eruptions' and are the biggest and most explosive of all.
Nov 10, 2023 · It’s also dubbed a “supervolcano” — a rare but unofficial label given to those that have produced the most intense eruptions in Earth’s history.
Dec 7, 2023 · A supervolcano is a volcano that has produced at least one supereruption, meaning that at some point in its history, it has ejected more than 240 cubic miles (1,000 cubic kilometers) of volcanic...
What are supervolcanoes, and how catastrophic can they be? Learn how supervolcanoes form, where supervolcanoes are located, and how their destructive capabil...
Apr 12, 2021 · Supervolcano eruptions have occurred throughout Earth’s history and have major environmental impacts. These impacts are mostly associated with the attenuation of visible sunlight by stratospheric...
What is a supervolcano? A supervolcano is any volcano capable of producing a volcanic eruption with an ejecta volume greater than 1,000 km3 (240 cu mi). This is thousands of times larger than normal volcanic eruptions.
