The Inouye Solar Telescope has begun analyzing the Sun with its new spectro-polarimeter, VTF, which can determine crucial properties of plasma flows and magnetic fields. The instrument offers unprecedented spatial, temporal, and spectral resolution to study the dynamic nature of our star.
A research team tracked sulfur dioxide emissions from an Icelandic volcanic eruption to the Arctic, finding 80% of pollution in a remote region originated from the eruption. The study uses satellite and ground-based monitoring to provide insights into the source and impact of the eruption's emissions.
Researchers use artificial seismic waves to image the ground beneath Yellowstone's caldera, determining the top of the magma chamber is 3.8 kilometers below surface and comprised of volatile gases and liquids. The findings indicate the long-dormant volcano is not in immediate danger of eruption.
A recent study found that volcanic ash from Kīlauea prompted a rare and large summertime phytoplankton bloom in the North Pacific Subtropical Gyre. The blooms were stimulated by iron and other trace elements in the ash, producing massive growth of nitrogen-fixing microbes and organic matter.
A new UCLA-led study reveals that the Hunga Tonga-Hunga Haʻapai volcano eruption in 2022 actually cooled the Southern Hemisphere by 0.1 C due to the formation of smaller sulfate aerosols. This effect was more significant than initially thought and challenges geoengineering efforts to combat climate change.
Researchers at Washington University in St. Louis propose a new mechanism to explain Venus' geology: convection in the crust. If true, this process could influence volcano placement and type. High-resolution gravity measurements could detect differences in crust temperature and density.
A new study reveals the extreme vulnerability of young volcanic soils to wildfires in the Arequipa shrublands of Peru. The research found that vegetation and soil combustion, combined with post-fire erosion, have caused a severe loss of soil organic carbon, hindering ecosystem recovery.
Researchers used satellite data to track ground movements and detect acceleration leading up to the Anak Krakatau eruption. The study found a precursor to the collapse, highlighting the potential of remote sensing techniques for early warning systems.
Filipino researchers have discovered that Taal volcanic ash can be used as a sustainable and lightweight alternative to expensive materials like concrete and lead. The natural presence of iron-rich minerals in the ash gives it strong radiation attenuation properties, making it effective for shielding against harmful X-rays and gamma rays.
Researchers have discovered persistent and large magma bodies beneath dormant volcanoes in the Cascade Range, surprising scientists. The team used seismic waves to identify these magma chambers, which exist beneath volcanoes over their entire lifetime, not just during active eruptions.
Borealis Mud Volcano provides a hard substrate for various species like anemones and octocoral colonies, sustaining local fish populations. The volcano's carbonates also offer shelter and feeding opportunities.
Researchers have discovered that Kīlauea and Maunaloa, Hawai‘i's two most active volcanoes, share a common source of magma within the Hawaiian plume. This magmatic connection results in broad correlations between changes in their lava chemistry.
Researchers have precisely dated the devastating Laacher See volcano eruption in Central Europe, which did not cause a sudden-onset cold period 13,000 years ago. The study used speleothem and ice core data to estimate the climatic impact of the eruption.
The discovery of ritual sun stone sacrifices coincided with a large volcanic eruption that made the sun disappear in Northern Europe. The eruptions had devastating consequences for Neolithic agriculture and populations, leading to significant cultural changes.
Researchers found a correlation between silica content and volcano tremor strength, suggesting that more viscous magma causes increased tremor amplitude. The study highlights the potential of combining petrological data collection with geophysical data to improve eruption forecasting.
Volcanologists' unique skillset can help urban governments customize lessons learned globally to address specific geographic, demographic, and economic challenges. By applying global knowledge to individual scenarios, cities can prepare for increasingly dangerous climate perils.
Ternary intermetallics exhibit better ORR activity than binary PtMn, with precise strain modulation improving catalytic performance. The optimal Pt-Pt distance and d-band center enhance oxygen reduction activity and stability.
The expedition aims to understand how extreme geohazards interact and improve the long-term safety of coastal regions. Researchers use innovative technologies to collect real-time data on earthquakes, ground movements, and volcanic gases.
The study discovered significant alterations in the region's state of stress and deformation following the 1975 Kalapana earthquake. The researchers found that Kīlauea's south flank experienced greater displacement prior to the earthquake, pointing to changes in mechanical properties influencing seismic activity.
Glaciers within three miles of a volcano move 46% faster than average, according to a new study that analyzed velocity data from 85% of the world's glaciers. This increased melt reduces friction between the glacier and the underlying rock, resulting in faster glacier flow.
Researchers propose that a fracture in oceanic crust beneath the volcano's caldera wall caused the massive January 2022 eruption of Hunga Tonga-Hunga Ha'apai. A seismic wave detected 750 kilometers from the seamount may provide valuable early warning signals for impending eruptions.
Researchers have successfully established new sacred fir forests on a nearby volcano to serve as overwintering sites for monarch butterflies, which are projected to disappear from their current habitats due to global warming.
Researchers analyzed crystals in volcanic rocks to show that South Sister was historically active with greater intensity over a shorter time window than previously believed. The study reveals two distinct periods of eruptions from different sources, providing insights into the volcano's past activity and potential future risks.
Scientists from the Institute of Nuclear Physics have discovered that near-earth microquasars are a significant source of gamma photons with extremely high energies. This finding challenges the previous understanding of ultra-high energy cosmic radiation and opens up new avenues for research in the field.
Researchers from Australian National University discovered that the Hunga Tonga eruption was triggered by an explosion as big as five underground nuclear bombs. The event caused massive tsunamis that reached up to 45 metres high at nearby islands.
Researchers have discovered that iron-rich extinct volcanoes are up to 100 times more efficient at concentrating rare earth metals than active volcanoes. This finding suggests that these ancient volcanoes could be studied for their potential to contain rare earth elements, which are crucial for renewable energy technologies.
Researchers from CNRS and Paris Institute of Planetary Physics developed an innovative imaging method to probe volcano internal structure. The study revealed a large magma storage zone beneath La Soufriere volcano, providing greater anticipation for volcanic eruptions.
Researchers have discovered dense, large-scale structures beneath a lost ocean on Mars, using gravity data from multiple missions. The findings suggest active processes in the martian mantle may be boosting the largest volcano, Olympus Mons.
A new volcano has been discovered on Jupiter's moon Io through analysis of JunoCam images, featuring multiple lava flows and volcanic deposits. The volcano is located just south of the equator and showcases the moon's ongoing geological activity.
Scientists from UC San Diego detected geochemical signatures of magma pooling and melting beneath the surface during Iceland's recent volcanic episode. The study found that massive pooling of magma preceded the eruption, contrasting initial hypotheses for magma ascent straight from the mantle.
A recent study found that volcanic 'fires' in Iceland were triggered by the storage and melting of magma beneath the Earth's crust. The team used geochemical analysis to discover that the magma comes from underground melting of the crust, rather than directly from the mantle.
A new study published by Texas A&M University researchers found that the Hunga Tonga volcano eruption did not contribute to global warming as initially thought. Instead, the eruption resulted in more energy leaving the climate system than entering it, leading to a slight cooling effect.
Researchers at USTC reveal 'volcano-type' relationship between metal loading and OER activity in Ir single-atom catalysts, with optimal performance found at moderate loadings. The study provides theoretical guidance for designing more efficient single-atom catalysts.
A new automated system of monitoring and classifying persistent vibrations at active volcanoes can eliminate hours of manual effort. The system, based on machine learning, documents volcanic tremor, a continuous seismic signal indicating underground movement of magma or gas.
Researchers predict that Iceland's volcanic eruptions on the Reykjanes Peninsula may last years to decades, posing significant economic disruption and uncertainty for evacuated communities. The eruptions have already forced a state of emergency and evacuated residents and visitors of popular tourist attractions like the Blue Lagoon.
Researchers analyzed a 17-minute film of the eruption to understand how the ash cloud grew upwards and outwards. They calculated the eruption rate, which determines ash cloud extent, and found that it dropped by about half during the eruption.
Researchers developed a portable device to measure lava viscosity, providing crucial data for evacuation plans and damage assessment. The tool's accuracy allows for better models of lava movement, enabling authorities to respond more effectively.
Scientists analyzed Martian meteorites to understand the planet's mantle and crust structure. The study found that these rocks are related through a process known as fractional crystallization within a volcano, revealing details about Mars' internal structure and volcanism.
Researchers captured a volcanic event on Io using the Large Binocular Telescope's SHARK-VIS instrument, achieving higher resolution than ever before with Earth-based observations. The images reveal surface details equivalent to taking a picture of a dime-sized object from 100 miles away.
Researchers describe a new type of volcanic eruption mechanism at Kīlauea volcano, where explosive eruptions are driven by sudden pressure increases and collapse-induced stomp-rocket effect. This discovery provides new insights into the dynamics of past volcanic eruptions and allows for better forecasts and warnings for future eruptions.
Researchers have developed a highly sensitive fiber optic gyroscope to monitor ground rotations caused by earthquakes in the Campi Flegrei area. The sensor, based on the Sagnac effect, can detect small to medium local earthquakes and provide valuable insights into seismic activity.
A University of Rhode Island oceanographer's research cruise discovered a blanket of ash covering the seafloor around deep-sea hot springs in Tonga. The eruption from the Hunga volcano decimated animal populations living there, with some species like crabs and shrimp surviving while others like mussels and snails were extinguished.
Researchers at Imperial College London and the University of Bristol studied 60 explosive volcanic eruptions worldwide to understand the frequency, composition, and size of eruptions. They found that magma buoyancy, storage time in shallower chambers, and reservoir size are key factors driving eruptions.
This study analyzed differentially expressed genes from three datasets to identify hub genes associated with gastric adenocarcinoma. The analysis revealed that genes such as ERBB4 and MAPT were linked to GC progression and had poor overall survival, suggesting potential therapeutic targets.
Researchers at the University of Birmingham found that marine cloud brightening can account for 60-90% of the cooling effect, increasing cloud cover by up to 50%. The study suggests MCB could be a more effective 'painkiller' than previously thought.
Researchers from Kobe University found that a 7,300-year-old volcanic eruption was the largest of the Holocene era. The team analyzed seismic imaging and sediment samples to determine the event's magnitude and impact on the climate.
Researchers used high-resolution techniques to analyze organic material from the early Earth, shedding light on the formation and composition of ancient biomass. The study found evidence of biological origin in microscopically small particles, suggesting a turbulent history of sediment deposits.
Researchers precisely dated some of the oldest fossils of complex multicellular life, tracking a pivotal moment in Earth's history when new lifeforms teemed in the seas. The fossils, including creatures like Aspidella terranovica, showcase early evidence of large-scale multicellular organisms.
Seismologists analyzed signals from underwater gas pipeline rupture, finding long-lasting seismic and infrasound signals. The signals decay slowly over thousands of seconds, similar to those detected from an underwater volcano or a pipeline venting gas.
New research reveals signs before a volcano erupts after tens of thousands of years of dormancy, including changes in magma composition and crystal formation. The study found that water-rich recharge magmas played a key role in triggering explosive eruptions, with amphibole being a critical indicator.
The study found that the eruption changed the chemistry and dynamics of the stratosphere, leading to unprecedented losses in the ozone layer. The injection of water vapor and sulfur dioxide increased sulfate aerosols, which drove changes in temperature and circulation, resulting in decreased ozone levels in the Southern Hemisphere.
GEOMAR researchers used 3D seismics to recreate the 1650 Kolumbo volcano eruption, finding that a landslide followed by an explosion created the devastating tsunami. The study provides valuable insights for monitoring submarine volcanic activity and potentially developing early warning systems.
A team of researchers, led by UCD's Dr. Claire Harnett, has won a prestigious ERC Synergy grant to explore ways to predict and mitigate the hazards of unexpected volcanic eruptions. The project aims to advance knowledge of volcanic processes and integrate multiple scientific disciplines.
Researchers found 13 mummified leaf-eared mouse cadavers atop 4-mile-high volcanoes, with DNA analysis revealing a distinct population from lower-altitude mice. The discovery suggests the rodents ascended without human assistance and have adapted to extreme conditions.
Scientists uncover evidence of long-term resident populations of mice living at extreme elevations in the Andes. Genetic and radiocarbon analysis reveals a species of leaf-eared mouse thriving above 6,000 meters, challenging previous assumptions about mammalian life on Earth.
Researchers observed and analyzed approximately 17,000 images from the Subaru Telescope to identify 13 extensive air showers. This new method can determine individual particle types, advancing understanding of these cosmic-ray phenomena.
Researchers have identified three key ingredients needed to bring valuable pink diamonds to the surface: deep carbon, continental collision, and stretching of landmasses. This discovery could lead to finding new pink diamond deposits globally.
The 2022 Hunga Tonga eruption generated an extremely fast-moving and destructive submarine debris flow that severed telecommunication cables and reshaped the surrounding seafloor. The flow traveled over 100 kilometers across the seafloor at speeds of up to 122 km/h, excavating scours and channels into the seabed.
A UNIGE team has developed a method to rapidly obtain valuable information about the structure of volcanoes. By analyzing three key parameters: height, rock thickness, and chemical composition of magma, scientists can identify the active volcanoes most likely to produce large-scale eruptions.
Research reveals Kama'ehu volcano in Hawaii has erupted five times in the past 150 years. The new study uses mass spectrometry to measure radium-226 in lava samples, revealing a frequency of eruptions around 30 years. This slower rate is linked to sluggish mantle upwelling on the margin of the Hawaiian plume.