Researchers have discovered that seismic rumblings on the seafloor can provide a new way to monitor ocean temperatures, using existing seismic monitoring equipment and historic data. By analyzing sound waves from undersea earthquakes, they can determine changes in ocean temperature at depths normally out of reach of conventional tools.
Researchers use natural seafloor earthquakes to determine ocean temperature across vast distances and depths, overcoming previous limitations. The technique, called seismic ocean thermometry, reveals a decadal warming trend exceeding previous estimates in the East Indian Ocean.
A new study suggests that real-time seismic monitoring could detect glacial lake outburst floods five hours before they reach downstream communities. Researchers reconstructed the 1994 Punakha flood using seismic data, showing promise for a seismology-based early warning system.
A recent study used OBS data to clarify the formation mechanism of the Double-peak seamount in the Northwest Sub-basin (NWSB) of the South China Sea (SCS). The survey revealed a high velocity layer at the bottom of the crust, indicating possible in-situ mantle serpentinization or lower crust magma underplating. The study enriches the d...
A new study from the University of Jyväskylä found that women scoring high in neuroticism reported less physical activity and had lower leisure time physical activity. High extraversion was linked to higher leisure time physical activity in middle-aged women.
A magnitude 5 earthquake near Le Teil in southern France revealed unexpected surface rupture and ground displacement, reactivating the ancient La Rouvière fault. The event raised concerns about seismic risk in France and Western Europe, with potential for other faults producing similar surface ruptures.
Researchers used data gathered before a 2017 deadly landslide in Greenland to demonstrate the effectiveness of deep learning in predicting seismic events. The study found weak but repetitive rumblings that accelerated over time, leading to the landslide, which could be detected by AI.
A machine learning model has uncovered distinct statistical features marking the formative stage of slow-slip ruptures, allowing geophysicists to understand the timing of devastating faster quakes. The research suggests that slow-slip rupture may be predictable, providing an easier way to study fundamental physics.
Researchers from Northwestern University used a crowd-sourced platform to analyze seismic recordings and found that citizen scientists can classify earthquakes with 85% accuracy, outperforming machine learning algorithms. Citizen scientists also successfully identified tectonic tremors, which AI could not do previously.
Researchers from Rice University have made the first direct measurements of three subsurface boundaries from Mars' crust to its core using NASA's InSight Lander data. The study provides insights into Mars' early history, planetary formation, and the planet's development from a chemical and thermal perspective.
A new study published by GEOMAR scientists reveals that thousands of tons of methane are leaking from old drill holes on the North Sea floor every year. The research used combined investigations and seismic data to estimate that up to 3700 tonnes of methane could be emitted annually from this area alone.
Researchers investigated the dynamics of the Earth's transition zone, a boundary layer between ~410 and ~660 km depth. They found that deformation mechanisms shift from dislocation creep to pure climb creep at geological stresses, influencing the Earth's geochemical evolution.
Researchers have matched seismic signals with aurora displays in Alaska, offering a new way to study magnetic fluctuations. By combining data from all-sky cameras and seismometers, scientists can better understand the link between solar winds and the Earth's magnetic field.
Researchers used seismic waves to study chemical reactions deep below ground, revealing changes in porosity and saturation of rocks. The findings have implications for understanding water quality and protecting valuable groundwater resources.
The study reveals an 'inchworm-like' slip evolution of supershear rupture along the Palu-Koro fault, showcasing the effect of complex fault geometry on rupture propagation. This phenomenon may have significant implications for assessing future earthquake impacts and related disasters.
A new study published in Science found that COVID-19 lockdowns resulted in a 50% reduction in global seismic noise levels. The research used citizen science data from over 300 seismic stations worldwide, revealing the impact of physical distancing measures on seismology.
The COVID-19 pandemic led to a significant reduction in global seismic noise, with anthropogenic signals dropping by as much as 50% between March and May. This decrease allowed researchers to detect subtle seismic signals from subsurface sources, providing new insights into human-induced seismicity.
A recent study found that COVID-19 lockdowns led to a 50% global reduction in human-caused seismic noise, with the most pronounced effects seen in densely populated areas. This 'anthropause' phenomenon has provided a unique opportunity for researchers to better distinguish between human and natural seismic noise.
Researchers found a significant link between well depth and seismic probability, suggesting that deeper wells are more likely to trigger earthquakes. The study also revealed that the type of fluid used in hydraulic fracturing, including gel vs. slickwater operations, may affect seismic activity.
A team of geophysicists used the ROMY ring laser to measure the Earth's rotational velocity and axis orientation, achieving the most precise ground-based measurements yet. The instrument detected minute alterations in the Earth's rotation caused by ocean currents, ice mass shifts, and seismic events.
Researchers have discovered ancient volcanic activity and subtle, unusual movements in the Earth's surface in the Eifel region of Germany, suggesting a greater risk to northwestern Europe. The study suggests that the region is an active volcanic system with significant seismic activity.
Researchers at Kyushu University analyzed data from NASA's InSight lander to determine the sources of different types and frequencies of Martian microtremors. The study found that low-frequency P-waves were related to changes in wind and solar irradiation, while higher-frequency ambient noises were dominated by lander vibration.
A new study maps over 22,000 tremors to recreate the complex three-dimensional structure of a fault zone in southern California. The research reveals that dynamic pressure changes from natural fluid injections controlled the evolution of an earthquake swarm in the region.
A four-year-long earthquake swarm near Cahuilla, California was driven by a naturally occurring injection of underground fluids, revealing complex conditions for fluid flow within the fault zone. The study provides new insights into seismic processes and brings closer concrete explanations for how earthquake swarms start and terminate.
Researchers have created a new map revealing the Earth's mantle at a depth of 3,000 kilometers by analyzing thousands of seismic waves collected over 30 years. The map shows hot and dense regions below Hawaii and French Polynesia.
Researchers found echoes from features deep inside Earth, revealing more widespread and heterogeneous structures at the core-mantle boundary. The study provided a new perspective on the geologic processes happening deep inside Earth, shedding light on plate tectonics and planet evolution.
Researchers at University of Alaska Fairbanks found that seismic surveys can cause long-lasting scars on the tundra, affecting its hydrology and habitat. The study emphasizes the need for more data on seismic exploration impacts and better weather records to minimize damage in the Arctic Refuge.
Researchers from Los Alamos National Laboratory have developed a new technique that separates industrial noise from natural seismic signals using cloud computing. The approach allows for large-scale seismic analysis ten times faster than traditional methods and has the potential to transform the field of seismology.
A Florida State University researcher has identified 85 previously unknown submarine landslides in the Gulf of Mexico between 2008 and 2015. These landslides pose significant risks to coastal communities and seabed infrastructure, including oil platforms and pipelines.
Scientists have measured the velocity of seismic waves in iron-sulfur alloys thought to comprise Mars' core, providing crucial information about the planet's internal structure. This study simulates the Martian core's composition and origin, helping researchers compare observations with Martian space probes.
Researchers confirm that the Earth's inner core is rotating, contradicting previous studies suggesting it was stationary. The new evidence comes from analyzing seismic data from repeating earthquakes and precise arrival time analysis.
A recent study used fiber optic cables to capture seismic signatures of the Rose Parade, capturing the vibrations of marching bands and floats. The technique, called distributed acoustic sensing (DAS), revealed distinct signals from the parade, including harmonic frequencies corresponding to even-stepping marching bands.
NASA scientists have developed a new seismometer system called SUBLIME to measure moonquakes and map the Moon's interior. The system will alert astronauts to seismic events and provide an early-warning system, with the long-term goal of establishing a network of seismic stations.
Researchers mapped and measured fault roughness using high-resolution seismic data, finding that rougher surfaces are stronger and more resistant to earthquake slip. The study's findings may help explain why certain earthquakes are stronger than others.
Researchers found that large earthquake sequences are 'burstier' and more difficult to predict than expected, with irregular gaps between event bursts. This finding could impact seismic hazard assessment and the way we evaluate an event's likelihood of repeating soon after a large earthquake.
Quantum mechanical simulations show that the Earth's inner core is not as rigid as thought, with a lower iron viscosity than previously predicted. This suggests that plastic flow of iron might contribute to seismic anisotropy and the inner core's alignment.
Researchers have found that fault segments connected at depth can influence earthquake risk and magnitude. A study suggests that a rapid decay in slip at the edge of a fault segment indicates a connection below the surface.
Researchers demonstrate the potential for using existing optical fibers as seismic sensors, providing high-resolution maps of shallow subsurface and validating a new technique. The approach has great potential for use in large earthquake-threatened cities with extensive networks of buried optical cables.
A major international study has shed light on the mechanisms triggering deep earthquakes up to 40km below the Earth's surface. The research suggests that interaction between creeping shear zones loads stiff rocks, causing them to snap and generate earthquakes.
A new study analyzed temporal evolution of seismicity and growth of maximum observed moment magnitudes in various stimulation projects. The results show a clear linear relation between injected fluid volume and cumulative seismic moments for most projects, indicating that seismicity can be managed by changes in injection strategy.
Researchers propose that rocks colliding inside a fault zone during an earthquake produce high-frequency vibrations, which could help explain puzzling seismic patterns and predict quake damage. The new explanation suggests smoother faults with rounded internal structures may produce less damaging quakes.
Researchers at MIT have developed a machine learning method to fill in the missing low-frequency seismic waves in human-generated seismic data, allowing for more accurate mapping of underground structures. The technique was trained on simulated earthquakes and used to infer missing frequencies from new input data.
Researchers analyzed Marsquakes from InSight mission, finding moderate seismic activity intermediate between Earth and the Moon. The data revealed geological layers within the planet and identified areas of high geological activity, guiding future missions searching for potential life.
The NASA InSight lander has recorded over 450 marsquakes on Mars, providing insights into the planet's internal structure and tectonic activity. The data reveals a stronger attenuation in the upper mantle compared to the lower mantle, indicating a more fractured crust.
A new technique uses seismic waves from distant earthquakes to image the subterranean structure of Cleveland volcano. The study, published in Scientific Reports, resolved the architecture of the lower and middle crust for the first time, providing crucial information for emergency planning and saving human lives.
Seismologists have recovered nearly 40-year-old seismic data tapes from the 1980 Mount St. Helens eruption, providing a near-continuous sequence of activity leading up to the May 18th event. The data analysis suggests no significant change in seismic signals that would have hinted at an imminent major eruption.
Researchers found multiple faults with evidence of over 10 meters of slip during past large earthquakes in the Japan Trench fault zone, revealing a complex history of seismic activity. The technique used to analyze organic molecules in sedimentary rocks provides new insights into the likelihood of future tsunamis and earthquake hazards.
Researchers have discovered slow-slip events along the Nankai Trough subduction zone, which can last for hours or months and are difficult to detect using conventional seismological techniques. The study used a Global Navigation Satellite System-Acoustic ranging technique to monitor changes in the seafloor's position.
Researchers at Kazan University are developing advanced aerial drones with devices such as detectors and special cameras to enhance geological surveys. The goal is to analyze upper strata of rocks, evaluate hydrocarbon potential, and improve forest planning and soil analysis.
Researchers have observed processes in the upper mantle before a new submarine volcano formed off the Comoros island. The team reconstructed the partial emptying of a large magma reservoir and identified a dramatic movement of molten rocks before the eruption.
Researchers propose a new theory that iron particles fall from the molten outer core and accumulate on the inner core, creating piles up to 200 miles thick. This phenomenon could help explain seismic wave anomalies and provide insights into the Earth's interior composition and behavior.
Researchers have transformed submarine cables into a seismic network, tracking earthquakes and ocean waves. The new technology has the potential to fill blind spots in the global seismic network.
Scientists have successfully detected seismic waves using submarine telecommunications cables, which can also detect earthquakes, swell, and underwater noise. The researchers deployed a 41 km-long cable to retrieve data from an underwater observatory, converting it into over 6000 seismic sensors.
Researchers at Penn State used fiber-optic cables to detect tiny seismic events caused by thunder during a storm, marking the first time scientists have recorded thunder-induced seismic events.
Researchers at University of Technology Sydney developed a novel ground anchor technology to protect bridges against catastrophic earthquakes. The system uses high-tensile capacity steel cables, embedded into the ground behind the bridge, to deliver incredible strength and energy dissipation.
A floating array of sensors in the Pacific Ocean will provide a comprehensive view of Earth's interior, offering insights into buoyancy, viscosity, density, and temperature of the deep mantel plume. The array will help scientists understand the plate-tectonic cycle that gives us energy and reveals the potential barriers for material fl...
Researchers have discovered a new seismic phenomenon originating at the ocean floor due to powerful storms. Stormquakes, characterized by magnitude 3.5 quakes, are caused by storm-induced pressure zones on the seafloor. The track of the storm and depth of the ocean play key roles in determining whether a stormquake occurs.
Scientists are exploring the use of fiber optic cables as earthquake sensors due to their potential for accurate seismic data collection. Distributed Acoustic Sensing (DAS) technology uses internal flaws in fibers to detect changes in temperature, strain, or vibrations caused by seismic waves.
A new study from the University of British Columbia found that vivid images are more effective than statistical data in conveying earthquake risk. The researchers created an image showing a Vancouver elementary school after a major earthquake and found that people who saw it were more likely to sign a petition for seismic upgrades, wit...
Researchers used existing underwater fiber optic cables to create an array of seismic sensors, mapping a previously unknown fault system off California's coast. The technique, known as Distributed Acoustic Sensing (DAS), allows for unprecedented detail in monitoring seafloor seismic activity and potential offshore resources.