Tag: volcanology

Around AD 1085 AD, along the southern rim of Northern Arizona's elevated Colorado Plateau a volcano erupted, forever changing ancient Puebloan fortunes and all nearby life.

Scientists striving to understand how and when volcanoes might erupt face a challenge: many of the processes take place deep underground in lava tubes churning with dangerous molten Earth. Upon eruption, any subterranean markers that could have offered clues leading up to a blast are often destroyed.

Researchers have shown that over the past two thousand years, volcanoes have played a larger role in natural temperature variability than previously thought, and their climatic effects may have contributed to past societal and economic change.

South American volcano showing early warning signs of 'potential collapse', research shows.

A supervolcano is classified as a volcano with an eruption magnitude of 8, the largest value on the Volcanic Explosivity Index (VEI) where the volume of deposits for that eruption is greater than 1,000 cubic kilometers (240 cubic miles).

The caldera-forming eruption of Campi Flegrei (Italy) 40,000 years ago is the largest known eruption in Europe during the last 200,000 years, but little is known about other large eruptions at the volcano prior to a more recent caldera-forming event 15,000 years ago.