Research - page 2

deep earthquake

Deep earthquakes in Texas driven by shallow wastewater injection

Virginia Tech geoscientists have found that shallow wastewater injections can drive widespread deep earthquake activity in oil and gas production fields. The team came up with the finding after studying the Delaware Basin in western Texas, one of the most productive...

May 16, 2021

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Decades-old video footage reveals new type of aurora - Diffuse Auroral Eraser

Decades-old video footage has shown a never-before-seen aurora, which scientists at the University of Iowa called the Diffuse Auroral Eraser. This elusive type of aurora first appears as a brighter stripe within a fainter, more diffused aurora. When the stripe...

May 16, 2021

kilauea eruption hawaii 2018

Caldera collapse triggers large-scale volcanic eruptions

Researchers at NASA’s Jet Propulsion Laboratory in Southern California identified what triggers large-scale volcanic eruptions and the conditions that lead to them. Using data from the 2018 Kilauea eruption in Hawaii-- its largest volcanic eruption in over 200...

May 11, 2021

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New study reassesses strongest Mediterranean earthquake in history

A new study published in AGU Advances highlighted and reassessed the Crete Earthquake-- believed to be the strongest recorded earthquake in the Mediterranean, which occurred in AD 365. Using new radiocarbon dates and historical records, the researchers showed how...

May 11, 2021

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Scientists link rapid warming in Northwest Atlantic Shelf to migrating Gulf Stream

Parts of the North Atlantic saw some of the Earth's most extreme temperature anomalies, which had a major blow on fisheries. A new study reveals the link between the abrupt warming in the region to the Gulf Stream migrating closer to Newfoundland, Canada. The...

May 10, 2021

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Earthquakes and tsunamis from subduction zones more destructive than current estimates

Earthquakes and tsunamis from subduction zones might be more hazardous than current estimates, a new study suggests. Researchers from the University of New Mexico and the Nanyang Technological University developed a new method to assess the dangers represented by...

May 05, 2021

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Great auroral storms occur every 40 to 60 years, new historical study shows

A new study published in the Journal of Space Weather and Space Climate suggests that great auroral storms occur about every 40 - 60 years, although the distribution of such events is far from even. Space weather storms typically have solar, interplanetary,...

May 02, 2021

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Observations reveal lightning as the source of extreme air-cleaning oxidants

Observations from NASA's storm-chasing aircraft DC-8 reveal that lightning can produce extremely high concentrations of two major oxidants that help clear the air and the atmosphere. In May and June 2012, the DC-8 jet flew through the eye of thunderstorms over...

May 01, 2021

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Impacts of solar flare on the Earth's magnetosphere

In a new study published recently in Nature Physics, researchers at Shandong University in China and the National Center for Atmospheric Research in the U.S. provided new insight into the effects of solar flares on the Earth's magnetosphere. The scientists...

April 29, 2021

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Record-breaking solar flare erupts from Proxima Centauri

Scientists have observed an extreme, record-breaking solar flare from Proxima Centauri, our sun's closest star. The outburst was roughly 100 times more powerful than any similar event seen from our own sun. Proxima Centauri is a small but 'mighty' red...

April 28, 2021

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Researchers propose new formation mechanism for solar coronal rain

Coronal rain is a phenomenon on the Sun that plays a key role in the mass cycle between the hot corona and cool chromosphere. In a new study, a team of researchers has proposed a new formation mechanism for coronal rain along open magnetic structures, showing that...

April 24, 2021

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Aerial images reveal invisible fault in Datong City, China

Aerial photos of Yudong District, Datong City in Shanxi Province, China, have aided scientists in their search for a hidden fault underneath the city, the team reported at the Seismological Society of America's 2021 Annual Meeting. Photos taken from the 1960s...

April 24, 2021

submarine volcano

Underwater volcanoes release enough energy to power a continent

Submarine volcanoes or those deep in our oceans can release extremely powerful energy, high enough to power a continent, new research suggests. It was previously believed that underwater volcanoes were much less violent than those on land due to relatively...

April 23, 2021

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GPS data suggests possible large earthquake and tsunami hazard for northwest Colombia

A GPS network data revealed a shallow and fully locked part on the Caribbean subduction zone in Colombia, indicating that there is a possible large earthquake and tsunami hazard for the country's northwest region. Colombia is situated in the middle of a complex...

April 23, 2021

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Study reveals mechanism of naturally occurring 'earthquake gate'

A new study reveals the workings of an "earthquake gate" -- a naturally occurring blocker that decides which quakes are allowed to grow into M8.0 or greater. "An earthquake gate is like someone directing traffic at a one-lane construction zone,"...

April 21, 2021

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Measuring magma viscosity helps predict volcanic eruption style

The style of a volcanic eruption depends on magma viscosity, as well as its hazard potential, but it can only be measured during or after an eruption. After a study of the 2018 Kilauea Eruption in Hawaii, a team of scientists was able to identify an indicator of...

April 15, 2021

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Detecting significant thermal unrest years before volcanic eruption

Scientists at NASA’s Jet Propulsion Laboratory (JPL) and the University of Alaska (UA) have developed a new method that may lead to earlier predictions of volcanic eruptions. There are telltale warning signs that a volcano is likely to erupt in the future,...

April 14, 2021