Articles tagged with Earthquakes
Researchers used SWOT satellite data to confirm that two mega tsunamis triggered by landslides caused trapped waves in the fjord. The study provides new insights into ocean extremes and how climate change affects remote areas.
Researchers mapped electron density in the ionosphere and observed unique 3D wave patterns after the 2024 Noto Peninsula Earthquake, showing earthquakes generate waves from multiple points along the entire fault line. The study provides new insights into how earthquakes affect the upper atmosphere.
Researchers developed an AI-based framework to predict grout permeation behavior in heterogeneous soils, outperforming traditional FEM simulations. The model achieved high predictive accuracy of R^2 = 0.849 and processed predictions in under 2 seconds.
A new near-real-time prediction model for earthquake-triggered landslides has been developed, utilizing a global database of 398,698 mapped events and cutting-edge deep learning. The model achieves spatial accuracy exceeding 82% and can generate probability maps of landslide occurrence in under one minute.
Researchers developed a new equation to predict seismic wave propagation in magma containing crystals and bubbles, revealing how crystal content influences wave velocity and waveform properties. The analysis also showed that bubble content affects attenuation effects, with discernible differences emerging between models.
A magnitude 7.7 earthquake struck central Myanmar on March 28, 2025, causing 4,900 fatalities and widespread destruction. The event exposed weaknesses in urban planning, preservation, and disaster preparedness, emphasizing the need for reconciliation with seismic resilience.
A collaborative research project led by Johannes Gutenberg University Mainz aims to understand the impact of thermally induced fracture formation on mineral rock properties. The study will help reduce associated risks and improve geothermal energy's efficiency.
Researchers have discovered that the Wasatch Fault's shallow dipping angle at depth may lead to stronger, more intense shaking at the surface, increasing the risk of injury and destruction. The scientists found that the fault rocks themselves are weaker due to past deformation, priming the fault for future failure.
A new study has investigated seismic signal shear-wave splitting to provide early warnings of dangerous eruptions. The research team discovered that the amount of splitting doubles before a larger, more explosive eruption, indicating a useful relationship between the parameter and the size of the eruption.
A recent study by Virginia Tech researchers found that a major earthquake could expand the coastal floodplain by 35-116 square miles, affecting thousands of residents and properties. The impact would be most severe in southern Washington, northern Oregon, and northern California.
A team of researchers from the University of Tokyo used simulations to create a detailed 3D model of a fault, which helped them understand how different parts of a fault contribute to uplift during an earthquake. The study revealed that fault geometry is a critical factor in determining the impact of earthquakes on land.
Researchers analyzed sediment cores from four lakes in Guatemala, revealing the distinct direction of ground shaking during a magnitude 7.5 earthquake that devastated the country in 1976. The unusual pattern showed thicker deposits at the end of the fault rupture, indicating directional shaking.
Researchers are extending the earthquake history of northeastern North America by analyzing Native American place names and languages, revealing regular seismic activity and past large earthquakes. The study found that words for earthquake exist in several tribes' languages, suggesting a repetitive phenomenon.
The March 28 magnitude 7.7 Myanmar earthquake ruptured over 400 kilometers of the Sagaing fault, causing severe ground shaking and infrastructure damage. Seismologists shared early analyses of the event's fault properties, highlighting a supershear rupture and widespread triggering by dynamic stresses.
Researchers at KAUST developed a highly accurate 3D dynamic model to better anticipate large earthquakes. The model provides a more accurate understanding of strong shaking during the Turkiye earthquake, enabling information for future seismic hazard assessments.
This study used high-resolution satellite data to rapidly assess coseismic surface ruptures caused by the 2023 Türkiye earthquake doublet. The research found separate rupture zones for each earthquake and highlighted seismic hazard risks for specific fault segments, including the Malatya Fault and East Anatolian Fault Zone.
A Kobe University study found that temperature at the plate interface predicts earthquake type, while a specific plate shape causes a seismic gap. Water released from rock transformation explains slow slip events and tectonic tremors, reducing stress between plates.
This study reveals clear periodic patterns in seismic velocity changes on daily, semi-daily, and monthly timescales, driven by tidal forces. The research provides new insights into how tidal forces impact fault systems, offering valuable information for understanding fault dynamics and seismic hazards.
Full Waveform Inversion (FWI) technology provides unprecedented precision in seismic imaging, breaking resolution limitations of traditional methods. It characterizes complex structures within the Earth's interior and offers higher-resolution subsurface models.
A new study by Reichman University and the Geological Survey of Israel found that the Israeli public prioritizes faster earthquake warnings over accuracy. Injuries from early warnings were negligible compared to damage without warnings.
A Rice University researcher is working to fortify buildings in Haiti against future earthquakes with cost-effective retrofitting solutions. The study, recently published in Earthquake Spectra, explores five techniques to improve seismic performance, including steel braces and reinforced concrete jacketing.
Researchers forecast shaking damage from crustal earthquake scenarios in Mexico City, with varying levels of damage depending on the region's underlying geology. The study modeled earthquakes up to magnitude 5.5 and found that one- to two-story buildings received the most damage, particularly in areas with soft lakebed sediments.
A new seismic study of Singapore reveals areas with increased risk of ground shaking, guiding urban growth and renewable energy development. The research identifies potential reservoirs for geothermal energy production and provides insights into the city-state's tectonic history.
Researchers found a correlation between solar heat and seismic activity, suggesting that incorporating solar activity predictions into detailed Earth temperature models can improve earthquake forecasts. This study sheds light on the role of solar heat in triggering earthquakes, potentially providing a more accurate prediction method.
Researchers found that foliated rocks along a fault line exhibit anisotropic properties, causing uneven strength and contributing equally to earthquake generation. This discovery suggests that the properties of rocks may play a significant role in seismic activity.
A new study developed a computer model to predict household displacement duration in US communities after disasters, accounting for socioeconomic factors. The model combines physical damage estimates with socioeconomic characteristics to help inform risk mitigation strategies.
A Japanese research team investigated the connection between housing damage from the Great East Japan Earthquake and all-cause mortality. The study found no significant relationship between the two, suggesting that public health efforts may have suppressed mortality rates.
Researchers used Synthetic Aperture Radar satellites to quantify off-fault damage and surface displacement caused by the two 2023 earthquakes. The study suggests that off-fault damage can reach up to five kilometers from the fault, contradicting previous estimates.
Researchers analyzed spatial interactions between active fault segments in the L'Aquila Basin, revealing a structural connection between disconnected faults. Thermoluminescence dating indicated tectonic activity began 2.7 million years ago, while stable isotope analysis revealed fault structures formed at depths of 1.5-2 kilometers.
Researchers used a remote seismic station to detect and characterize an earthquake swarm in American Samoa, producing a new catalog of events. The technique employed, combining single-station data with deep-learning models, can be useful in sparse monitoring regions.
Researchers found evidence that repeated earthquakes like the 2024 Noto Peninsula earthquake shaped the region's topography. The study used satellite radar images to measure displacements caused by the earthquake, resulting in over 4m of uplift and emergence of new terraces along the northern coast.
A recent study published in Seismica journal has debunked claims that a magnitude 4.5 earthquake in Iran was a covert nuclear weapons test. The researchers analyzed seismic signals from the event and concluded that it was caused by natural geological forces, contradicting widespread misinformation on social media and news outlets.
If the Summerville phenomenon is an earthquake light, it might be that shallow earthquakes in the area released water-soluble gases like radon or methane, which were then ignited by static electricity or rock movement. Gas detectors could potentially test this hypothesis.
A team of researchers re-examined the aftershock sequence of the 2015 Bonin Islands earthquake and found no evidence for a record-breaking deep aftershock in the lower mantle. Instead, they discovered a distribution of aftershocks compatible with a 12-kilometer olivine sliver that sheds light on how deep earthquakes can occur.
Two large 'islands' with the size of a continent have been found in the Earth's mantle, showing they are at least half a billion years old. Seismologists discovered these regions by studying the tones and sound volume of seismic waves, finding little damping in the islands, but high damping in nearby cold slab graveyard.
Mori received the award at the 2025 SSA Annual Meeting for his efforts in promoting SSA's international outreach, including a successful joint meeting with LACSC. He also supported the SSA Kanamori Fund to mentor and network early-career seismologists.
Zhu has made groundbreaking contributions to earthquake monitoring using deep-learning models like PhaseNet, DeepDenoiser, and GaMMA. His work has led to breakthroughs in seismic phase picking, denoising, and phase association.
Charles Langston is awarded the Harry Fielding Reid Medal for his groundbreaking work on receiver function methodology, enabling unprecedented detail in imaging the Earth's crust and upper mantle. His techniques underlie multi-station imaging methods used globally, and have also been applied to study seismic data from Mars InSight.
A series of small earthquakes in Surrey in 2018 and 2019 may have been triggered by oil extraction from a nearby well, according to a new study. The research used mathematical modeling to predict the frequency of earthquakes based on oil extraction timing and volume, finding a rough match with observed seismic activity.
Researchers unveil groundbreaking insights into earthquake nucleation, showing that slow, aseismic motion is necessary and triggers seismic rupture. The study's findings also emphasize the critical role of geometric transitions in controlling nucleation dynamics.
The 2025 SSA Annual Meeting will present 48 technical sessions covering topics like earthquake forecasting and ocean-bottom seismology. Working journalists can register for free access to plenary talks and poster sessions.
A recent Colorado State University study demonstrates that climate change can affect earthquake frequency, as glaciers recede and slip along faults increases. This suggests that earthquake activity could increase as glaciers melt, impacting hazard assessment and seismology.
Scientists have developed a new technique to study faults, which can improve earthquake forecasts by determining the origins and directions of past rupture events. By analyzing curved scratches left on the fault plane, researchers can pinpoint where earthquakes start and spread, providing valuable insights for modeling future scenarios.
Researchers are on the trail of the 2011 mega earthquake's causes through deep-sea drilling. They aim to determine properties and processes in subduction zones, which can contribute to tsunamis.
A new study provides a comprehensive breakdown of how water injected into the Permian Basin changes subsurface pressures and causes earthquakes. The research offers insights that oil and gas operators and regulators can use to reduce seismicity and associated hazards.
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.
A new study finds that reducing the depth of wastewater injection can decrease seismic activity, lending further support to this approach. The research suggests that regulatory efforts to backfill some injection wells with cement and reduce volumes have been effective in lowering Oklahoma's induced earthquake rate.
Researchers used muscovite mica to quantify chemomechanical weakening in materials. The study found that the surface condition of muscovite affects its degradation and failure, with dry conditions causing more deformation before failure.
Baise's research has spanned earthquake site response, liquefaction, site characterization, regional wave propagation, ground motions models and earthquake damage assessment. She uses data-driven approaches to learn from observational data and was an early adopter of machine learning methods in model development.
A machine learning model predicts soil behavior during earthquakes, identifying areas vulnerable to liquefaction and providing contour maps for safer construction sites. The study uses geological data to create detailed 3D maps of soil layers, improving prediction accuracy by 20%.
A magnitude 4.8 earthquake in New Jersey triggered widespread alarm, but surprisingly, the epicenter showed minimal damage, while distant areas like NYC and Virginia experienced stronger shaking. An analysis of Lg waves revealed a previously unmapped fault with complex strike-slip motion and thrust, affecting regional hazard assessments.
Researchers have long believed that rock friction follows a simple relationship with temperature, but a new study published in PNAS suggests otherwise. The study reveals that different underlying mechanisms affect the frictional resistance of faults, which could improve earthquake hazard assessments and forecasts.
Researchers studied the 4.8-magnitude Tewksbury earthquake, which surprised millions with its strong shaking reports despite minimal damage near the epicenter. The study found that the rupture direction may have funneled the shaking away from the epicenter and toward the northeast.
A study found that a significant increase in plate-derived water beneath Arima Hot Springs occurred before the 1995 Kobe earthquake, potentially weakening the fault and triggering the quake. This phenomenon is similar to increased chloride ions and radon in groundwater, which have been reported as precursors to earthquakes.
A study found increased menstrual irregularities in women living in areas affected by the 2023 earthquake in Turkey. Risk factors included post-traumatic stress symptoms, chronic diseases, and smoking.
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.
Researchers questioned the Cascadia subduction zone's earthquake record, finding that turbidite layers showed no better correlation than random chance. The study suggests a need for further research on turbidite layers and their connection to past earthquakes.
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.
Researchers from USU and international partners will investigate how earthquake energy accumulates and releases on major strike-slip faults. The project aims to improve earthquake hazard models and provide educational opportunities in Earth sciences.