Yellowstone’s reawakened geyser won’t spark a volcanic ‘big one’

A geyser hiding under Yellowstone National Park recently reawakened. But don’t worry: That doesn’t mean the supervolcano beneath the park will erupt soon, a new study finds.  In March 2018, following a 3.5-year-long nap, Steamboat Geyser suddenly erupted, spewing steam, mud, sand and rocks into the air. The previously dormant geyser erupted 32 times in […]

Reawakened geyser does not foretell Yellowstone volcanic eruptions, study shows

IMAGE: A 2019 eruption of Steamboat Geyser in the Norris Geyser Basin of Yellowstone National Park. The geyser’s first documented activity was in 1878, and it has turned off and on… view more  Credit: UC Berkeley photo by Mara Reed When Yellowstone National Park’s Steamboat Geyser — which shoots water higher than any active geyser in […]

Scientists develop new approach to understanding massive volcanic eruptions

Dormant volcano in Equador. Credit: Alain Volentik A geosciences team led by the University of South Florida (USF) has developed a new way to reconstruct the sizes of volcanic eruptions that occurred thousands of years ago, creating a first-of-its kind tool that can aid scientists in understanding past explosive eruptions that shaped the earth and […]

A Fresh Perspective on Intricate Volcanic Plumbing Systems

In January 2020, the Taal volcano in the Philippines erupted for the first time since 1977, spewing steam, tephra, and lava for 10 days. Millions of nearby inhabitants were put at risk from falling ash and poor air quality. Like many of our volcanologist colleagues, we were interviewed by media outlets to provide […]

Fiery thunderclouds can spew as many aerosols as volcanic eruptions

A massive tower of smoke generated by Australian wildfires in late 2019 set a new record for the loftiest and largest fire-spawned thunderstorms ever measured. It also may represent a new class of volcanic-scale “pyrocumulonimbus” events, scientists said in an online news conference December 11 at the American Geophysical Union’s fall meeting. A particularly intense […]

Researchers find that timing of mass extinctions lines up with asteroid impacts and massive volcanic eruptions — ScienceDaily

Mass extinctions of land-dwelling animals — including amphibians, reptiles, mammals, and birds — follow a cycle of about 27 million years, coinciding with previously reported mass extinctions of ocean life, according to a new analysis published in the journal Historical Biology. The study also finds that these mass extinctions align with major asteroid impacts and […]

A volcanic surge helped sauropods rule over Jurassic herbivores

Long-necked sauropods, the largest animals ever to walk on Earth, may have thundered into dominance during the Jurassic Period thanks to a large burst of volcanic activity that began around 184 million years ago, a new study suggests. The resulting environmental crisis may have caused a shift in plant life that gave the tough-toothed, big-gutted […]

The Importance of Wind for the Fate of Volcanic Eruption Columns

The fate of volcanic eruptive columns (collapsing versus buoyant regime) is a complex issue in physical volcanology and represents a major hazard related to volcanoes. Column dynamics depends on a large number of variables, most of which are still poorly constrained. Michaud‐Dubuy et al. [2020] shed new light on some of those variables […]

New drone technology improves ability to forecast volcanic eruptions

Specially-adapted drones developed by a UCL-led international team have been gathering data from never-before-explored volcanoes that will enable local communities to better forecast future eruptions. The cutting-edge research at Manam volcano in Papua New Guinea is improving scientists’ understanding of how volcanoes contribute to the global carbon cycle, key to sustaining life on Earth. The […]