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Earth Sciences Jun 20, 2023

New study shows Tonga's Hunga eruption produced the most intense lightning ever recorded

The January 15, 2022, eruption of Hunga Volcano in Tonga continues to break records. According to a new study, the eruption created a "supercharged" thunderstorm that produced the most intense lightning ever recorded. There ...

Earth Sciences Jun 1, 2023

Petit-spot volcanoes involve deepest known submarine hydrothermal activity, may release methane

Underwater volcanoes on the Earth's crust are active contributors of many different elements to the oceanic environment. Hence, they play an important role in biogeochemical and chemosynthetic cycles of the ocean. Although ...

Earth Sciences May 22, 2023

Eruption of Tonga underwater volcano found to disrupt satellite signals halfway around the world

An international team has used satellite- and ground-based ionospheric observations to demonstrate that an air pressure wave triggered by volcanic eruptions could produce an equatorial plasma bubble (EPB) in the ionosphere, ...

Earth Sciences Apr 14, 2023

2022 Tongan volcanic eruption was largest natural explosion in more than a century, new study finds

The 2022 eruption of a submarine volcano in Tonga was more powerful than the largest U.S. nuclear explosion, according to a new study led by scientists at the University of Miami Rosenstiel School of Marine, Atmospheric, ...

Earth Sciences Apr 11, 2023

Study re-evaluates hazards and climate impacts of massive underwater volcanic eruptions

Material left on the seafloor by bronze-age underwater volcanic eruptions is helping researchers better understand the size, hazards and climate impact of their parent eruptions, according to new research from the University ...

Earth Sciences Jan 19, 2023

Malformed seashells, ancient sediment provide clues about Earth's past

Nearly 100 million years ago, the Earth experienced an extreme environmental disruption that choked oxygen from the oceans and led to elevated marine extinction levels that affected the entire globe.

Earth Sciences Jan 12, 2023

Surprise magma chamber growing under Mediterranean volcano

Using a novel imaging technique for volcanoes that produces high-resolution pictures of seismic wave properties, a new study reveals a large, previously undetected body of mobile magma underneath Kolumbo, an active submarine ...

Environment Nov 28, 2022

Hawaii volcano, world's largest, erupts for first time in decades

Hawaii's Mauna Loa, the largest active volcano in the world, has erupted for the first time in nearly 40 years, US authorities said, spewing lava and ash Monday as emergency crews went on alert.

Environment Nov 15, 2022

Remote undersea volcano likely erupting in Pacific Ocean

A volcano is likely erupting deep beneath the Pacific Ocean in the U.S. Commonwealth of the Northern Mariana Islands, but scientists don't know for sure because it's so inaccessible.

Planetary Sciences Oct 20, 2022

A new instrument will measure temperature, pressure and wind on Venus

The VASI (Venus Atmospheric Structure Investigation) instrument aboard NASA's Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging, or DAVINCI, mission to Venus, together with the other instruments on ...

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