Researchers at Heriot-Watt University have captured high-resolution images of a five-mile asteroid impact crater buried deep beneath the Atlantic Ocean. The data reveals minute-by-minute chaos after collision, including rocks flowing upwards to the crater floor and an 800-metre-plus high tsunami. The findings confirm the Nadir Crater w...
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.
A USTC study suggests that superionic iron hydride formed from slab-derived water is a crucial factor in ULVZ formation, explaining seismic anomalies at the CMB. The research reveals that this state of FeHx exhibits extremely low seismic velocities and a density matching those of ULVZs.
Researchers used realistic numerical models to solve mysteries about Earth vibrations of unknown origin and discovered a 'seiche' phenomenon caused by a massive rockslide in the fjord. The event generated seismic waves detectable globally for nine days, highlighting the interrelations between climate change and geological processes.
A new study examines the relationship between the 2024 M7.6 Noto Hanto earthquake and a preceding earthquake swarm in Japan's Noto Peninsula. The research highlights the importance of monitoring seismic swarms and understanding fluid migration patterns to enhance predictive models for future seismic events.
A massive rockslide in East Greenland triggered a towering tsunami and a rare global seismic signal that resonated for nine days. The study reveals how climate change-induced events like glacial thinning can lead to significant geophysical phenomena with widespread impacts.
A massive landslide triggered by climate change melted the glacier at its base, causing a 200-meter (650-foot) tall tsunami that rocked back and forth inside a narrow fjord for nine days. The resulting seiche generated seismic waves that reverberated through Earth's crust, baffling scientists worldwide.
A landslide in remote Greenland caused a mega-tsunami that sloshed back and forth across a fjord for nine days, generating vibrations throughout the Earth. The study used mathematical models to recreate the event and demonstrate how the sloshing of water would have continued, matching global seismic recordings.
Researchers from Kyushu University have identified a link between fault strength and earthquake magnitude, suggesting that stronger faults are more likely to produce large earthquakes. The study analyzed seismic activity at over 1,000 locations and estimated the stress field and characterized faults as strong or weak.
Five boulders in northern New York and Vermont provide limits on earthquake shaking intensity. The age of the rock formations indicates how long it's been since a region experienced that level of shaking.
Scientists from Australian National University have discovered a doughnut-shaped region in the liquid core, providing new clues about the dynamics of Earth's magnetic field. The region sits parallel to the equator and has low seismic speeds, indicating a high concentration of light chemical elements.
Researchers identified abnormal seismic activity three months before two major quakes in Alaska and California. The detection method uses machine learning to analyze datasets derived from earthquake catalogs.
A rare 'dual-initiation' mechanism led to Japan's violent Noto earthquake, which killed over 280 people and damaged 83,000 homes. The quake began simultaneously at two points on the fault, encircling a barrier and breaking it, releasing intense energy.
A novel negative-stiffness isolation device has been developed to provide multidirectional negative stiffness and energy dissipation, effectively mitigating earthquake impacts. The device's advanced design enhances seismic protection by offering a robust solution for safeguarding buildings in earthquake-prone areas.
Scientists have found that PKP precursors originate from ultra-low velocity zones in the Earth's mantle, which are likely generated by melting mid-ocean ridge basalts. These zones are not limited to hotspots, but rather spread across the core-mantle boundary beneath North America.
A large landslide triggered a megatsunami in Greenland's Dickson Fjord, causing a standing wave that sloshed back and forth for over a week. Researchers detected the unusual event using seismic signals recorded at stations worldwide.
A recent study found that the 2023 Greenland megatsunami generated a week-long oscillating wave in Dickson Fjord, revealing new insights into seiche dynamics. The research also sheds light on the impacts of landslides in Greenland and similar regions around the world.
Researchers tested GNSS data for rapid landslide prediction and found near real-time prediction possible within 40 minutes, according to Chen and colleagues. The study highlighted the importance of continuous monitoring and improved prediction models for regions susceptible to landslides.
A new study by SMU seismologists confirms that earthquakes in the Permian Basin occurring before 2017 were causally linked to underground wastewater injection. The study uses advanced earthquake location methods to reveal a spatial and temporal correlation with shallow injection activities since 2009.
Researchers applied sub-daily GPS to measure the spatial and temporal evolution of early afterslip following the 2010 Mw 8.8 Maule earthquake, revealing a nearly 10% reduction in coseismic displacement overestimation. The study enhances seismic hazard assessment and contributes to improving early warning systems.
Researchers have developed a new method to measure soil moisture in the vadose zone using seismic technology that detects vibrations from traffic noise. The technique, called distributed acoustic sensing, can provide real-time information on soil water content, crucial for managing water use and conservation efforts.
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 found two male skeletons with severe fracture and trauma injuries, suggesting earthquakes triggered building collapses during the 79CE eruption. The study provides new insight into the destruction of Pompeii, shedding light on the complex interplay between volcanic and seismic phenomena.
Researchers introduce a velocity-based space-time finite element method to tackle complex dynamics of soil-structure interaction during seismic events, offering superior accuracy and stability in long-duration simulations. This approach can contribute to the creation of safer and more resilient infrastructure, potentially saving lives ...
Researchers found sound velocities compatible with seismic profiles at depths of 740-1260 km, supporting garnet presence. The results have significant implications for the Moon's composition and formation, as well as its interior temperature and dynamo.
Researchers estimate that between 280 to 360 meteorites strike Mars each year, forming impact craters greater than 8 meters across. The study uses seismic data from the NASA InSight Mission to make this estimate, which is five times higher than previously thought.
Researchers at Imperial College London have discovered that Mars experiences around 280-360 meteorite impacts per year, exceeding previous estimates. This new tool, known as a 'cosmic clock,' can help scientists date planetary surfaces across the Solar System more accurately.
The 2024 Noto Peninsula earthquake had a moment magnitude of 7.5 and registered a maximum seismic intensity of 7. Researchers found multiple rupture episodes, including an initial rupture coinciding with preceding crustal activity, and bifurcated main ruptures across the initial rupture zone.
Transient creep of olivine explains long-lasting crustal deformation after great earthquakes. High-viscosity upper mantle rocks are not the cause, contrary to previous assumptions.
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 study found that heavy snowfall and rain contribute to earthquake swarms in northern Japan by altering underground pressure. Climate conditions are linked to seismic activity, with the timing of intense precipitation events correlating with the start of quakes.
Researchers at the Universiteit van Amsterdam triggered mini-earthquakes in a lab by applying a small seismic wave to a granular material. The study shows that these events can be understood using laboratory-scale frictional experiments, and its findings are relevant for understanding remote earthquake triggering in larger faults.
Researchers at Penn State have discovered a direct link between seismic activity and rock permeability, which could improve geothermal energy transfer. By monitoring microearthquakes, the team found that the strength of seismic activity is correlated with increased rock permeability.
Recent advancements in AI and IoT have improved earthquake prediction by identifying patterns in historical seismic data. However, limitations such as computational complexity, data quality, and interpretability remain, requiring a comprehensive approach to integrate diverse datasets.
Researchers use novel technique to detect ultralow velocity zones in the lowermost mantle, revealing their role in creating large observable distances of seismic waves. The study suggests that ULVZ formation may be linked to tectonic plate movement, with potential connections found in Central America and other high-speed anomaly areas.
The Lunar Environment Monitoring System, developed by UMD researchers, will track seismic activity on the moon's surface during the upcoming Artemis III mission. The system's data will help prepare NASA for a long-term presence on other planetary bodies.
Researchers from Tohoku University have developed a new signal processing technique that improves particle motion analysis in the time and frequency domain. This approach enables the detection and identification of various polarized seismic waveforms, including S-waves and P-waves, with improved accuracy.
Research team identifies seismic signature of individual songs and determines strength of each song's tremor, finding that audience movement, not music, was the primary source of harmonic tremors. The study also compares data from Swift's LA concert to other Summer 2023 SoFi concerts.
Researchers propose using fiber seismic networks to detect seismic waves on the Moon and provide information about its deep core structure. By analyzing artificial seismograms created from Apollo mission data, they found that a fiber network could identify specific seismic waves hidden in scattered signals.
Researchers developed a real-time acoustic positioning method to improve ocean bottom seismic exploration accuracy. The approach groups observations to construct precise models, achieving decimeter-level accuracy and potentially centimeter-level precision.
SEIS-UK, a seismic monitoring facility at University of Leicester, has received £2 million funding over 7 years to continue providing state-of-the-art equipment to UK researchers and their global collaborators. This investment supports high-quality research in earth and environmental sciences.
A team of researchers identified a significant Mw7.5 earthquake in Japan as exhibiting characteristics of a 'seismic dragon king', demonstrating predictability. The study analyzed data from the Japan Meteorological Agency's focal mechanism catalogue using the load-unload response ratio (LURR) method.
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 at University of Alaska Fairbanks have developed a new detection method that can identify landslides within minutes and determine if they pose a tsunami hazard. The method uses seismic data to estimate a landslide's location, volume, and potential impact, with the goal of issuing warnings in under 5 minutes.
Researchers found a subducted oceanic slab that has completely overturned beneath the western Mediterranean. The discovery helps sort out the complicated tectonic structure of the region, where Africa and Eurasia are converging.
The new USGS National Seismic Hazard Model shows nearly 75% of the US is at risk for damaging earthquakes, with a color-coded map highlighting areas most prone to shaking. The model identifies over 500 additional faults that could produce damaging quakes, updating the landscape of earthquake research.
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.
Researchers used ALMA to study the motion of gas in ancient spiral galaxy BRI 1335-0417, detecting seismic waves that reveal the galaxy's dynamic growth. The findings suggest that gas was streaming into the galaxy or colliding with smaller galaxies, fueling star formation at a rate hundreds of times faster than modern galaxies.
Researchers used USGS source modeling and InSAR satellite data to analyze the 6.8 Al Haouz earthquake in Morocco, finding a compact source with slip between 15-35 km deep, deeper than expected for earthquakes in this region.
A panel of experts concluded that the November 2022 Peace River earthquake sequence in Alberta, Canada was likely induced by human activity. The study used questionnaires created to distinguish natural from induced earthquakes, and gathered data on fluid injection information and past regional seismicity.
Researchers analyzed seismic data from the region since 2014, detecting a 8-month long crustal seismicity transient suggesting a preparation process before the M 7.8 Kahramanmaraş earthquake. This highlighted high and increasing seismic hazard in the area.
A UGR study found that physical activity wristbands can help change habits and overcome sedentary lifestyles among school children. The 'School-Fit' project showed improved daily physical activity parameters, including increased steps and moderate-to-vigorous activity.
A new method calculates rockfall risk over large areas of very high mountains, considering both earthquake-induced and erosion-driven risks. The study found that nearly 60% of total rockfall hazard in the Andean zone is attributable to seismic activity.
A new study by Colorado State University reveals that seismic signals show a growing intensity in ocean waves since the late 20th century, attributed to global warming. The research indicates that storms are becoming more intense and wave energy is increasing globally, posing a serious threat to coastal ecosystems and infrastructure.
New research reveals that endangered whales and dolphins inhabit the Hellenic Trench off Greece year-round, challenging seismic surveys and oil and gas exploration. The study confirms the presence of four species, including sperm whales, in both summer and winter, highlighting the need for conservation measures.
Researchers used seismic data to locate and identify a thin layer of molten silicates overlying Mars' metallic core. The discovery reveals a denser and smaller Martian core, aligning with other geophysical data and analysis of Martian meteorites. This finding provides new insights into how Mars formed, evolved, and became a barren planet.
Scientists discovered a molten silicate layer beneath the Martian mantle using InSight mission data, contradicting earlier assumptions about the planet's internal structure. This new finding suggests that Mars experienced an early magma ocean stage and provides insights into the formation of its core.
A new study demonstrates how unused telecommunications fiber optic cables can be transformed for offshore Earthquake Early Warning (EEW) systems. Researchers used a 50-kilometer cable to sample seismic data at 8,960 channels and achieved an approximate three-second improvement in EEW alert times compared to onshore DAS arrays.
Researchers at the University of Texas at Austin developed an AI algorithm that accurately predicted 14 earthquakes within about 200 miles of their location and strength, with only one false warning. The system detected statistical bumps in real-time seismic data and paired them with previous earthquakes to make predictions.
Soil liquefaction, a destructive phenomenon during earthquakes, is redefined by this groundbreaking study. Liquefaction can now be understood to occur in drained conditions with low seismic-energy density levels, triggered by seismic shaking facilitating interstitial fluid flow within the soil.