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Revealing Hidden Precursors to Earthquakes via a Stress-Sensitive Transformation of Seismic Noise
Nader Shakibay Senobari
https://arxiv.org/abs/2509.00268 https://

Revealing Hidden Precursors to Earthquakes via a Stress-Sensitive Transformation of Seismic Noise
Earthquake prediction has long been one of the most elusive challenges in science. Laboratory experiments and simulations suggest that failure precursors should exist, yet reliable signals have remained unobserved in real-world seismic records, leaving open the question of whether they are absent in nature or simply hidden within noise. Here we introduce a stress-sensitive frequency-domain transformation that tracks energy differences between adjacent frequency bands, isolating subtle spectral …

Crosslisted article(s) found for eess.SP. https://arxiv.org/list/eess.SP/new
[1/1]:
- Revealing Hidden Precursors to Earthquakes via a Stress-Sensitive Transformation of Seismic Noise
Nader Shakibay Senobari

On the inverse problem of the earthquake source and the three-phase relaxation mode of the source after the formation of a main rupture in it
A. V. Guglielmi
https://arxiv.org/abs/2510.01679

On the inverse problem of the earthquake source and the three-phase relaxation mode of the source after the formation of a main rupture in it
The fundamentals of the phenomenological theory of aftershocks are presented. The theory contains an original concept of the proper time of the earthquake source, the course of which, generally speaking, differs from the course of world time. Within the framework of the theory, a new method for processing and analyzing earthquakes has been developed. Analysis of the Tohoku earthquake demonstrated the effectiveness of the method. Three phases of relaxation of the source were discovered. In the i…

Geospatial AI for Liquefaction Hazard and Impact Forecasting: A Demonstrative Study in the U.S. Pacific Northwest
Morgan D. Sanger, Brett W. Maurer
https://arxiv.org/abs/2509.10965

Geospatial AI for Liquefaction Hazard and Impact Forecasting: A Demonstrative Study in the U.S. Pacific Northwest
Recent large-magnitude earthquakes have demonstrated the damaging consequences of soil liquefaction and reinforced the need to understand and plan for liquefaction hazards at a regional scale. In the United States, the Pacific Northwest is uniquely vulnerable to such consequences given the potential for crustal, intraslab, and subduction zone earthquakes. In this study, the liquefaction hazard is predicted geospatially at high resolution and across regional scales for 85 scenario earthquakes in…

Bunching of extreme events on complex network
Sarvesh K. Upadhyay, Vimal Kishore, Sanjay Kumar, R. E. Amritkar
https://arxiv.org/abs/2509.18764 https://arx…

2025 EERI LFE Travel Study -- Mexico: Lessons in soft soils, subsidence, and site effects
Morgan D. Sanger, Kenny Buyco, Mohammed S. Ibrahim, P. Salvador Ramos, Andres A. Acosta
https://arxiv.org/abs/2510.00390

2025 EERI LFE Travel Study - Mexico: Lessons in soft soils, subsidence, and site effects
The 1985 M8.1 Mexico City earthquake marked a turning point in Mexican earthquake engineering, underscoring the influence of soft soils, subsidence, and site effects on seismic performance in the Valley of Mexico. In the four decades since, both research and engineering practice have evolved significantly, shaped by subsequent events such as the 2017 M7.1 Puebla-Morelos earthquake. Integrating observations made during the Learning from Earthquakes Travel Study program and desk study findings, t…

💧 Supercritical subsurface fluids open a window into the world
#geology

Supercritical subsurface fluids open a window into the world
Researchers have built on past studies and introduced new methods to explore the nature and role of subsurface fluids, including water, in the instances and behaviors of earthquakes and volcanoes. Their study suggests that water, even heavy rainfall, can play a role in or even trigger seismic events. This could potentially lead to better early warning systems.

"All in all, these machine learning models are so good that they’ve almost completely supplanted traditional methods for detecting and phase-picking earthquakes, especially for smaller magnitudes."
"In the last five years, an AI-based workflow has almost completely replaced one of the fundamental tasks in seismology for the better."
(It's not LLMs)

“Like putting on glasses for the first time”—how AI improves earthquake detection
AI is “comically good” at detecting small earthquakes—here’s why that matters.

Safe underground carbon storage would only reduce warming by 0.7°C, analysis finds #environment

Safe underground carbon storage would only reduce warming by 0.7°C, analysis finds
For the first time, a study maps safe areas that can practically be used for underground carbon storage, and estimates that using them all would only cut warming by 0.7°C. The result is almost ten times lower than previous estimates of around 6°C, which considered the total global potential for geological storage, including in risky zones, where storing carbon could trigger earthquakes and contaminate drinking water supplies. The researchers say the study shows that geological storage is a sc…

A Multi-Model Probabilistic Framework for Seismic Risk Assessment and Retrofit Planning of Electric Power Networks
Huangbin Liang, Beatriz Moya, Francisco Chinesta, Eleni Chatzi
https://arxiv.org/abs/2508.07376

A Multi-Model Probabilistic Framework for Seismic Risk Assessment and Retrofit Planning of Electric Power Networks
Electric power networks are critical lifelines, and their disruption during earthquakes can lead to severe cascading failures and significantly hinder post-disaster recovery. Enhancing their seismic resilience requires identifying and strengthening vulnerable components in a cost-effective and system-aware manner. However, existing studies often overlook the systemic behavior of power networks under seismic loading. Common limitations include isolated component analyses that neglect network-wid…

🪇 Engineers shake tallest steel-framed building ever tested on an earthquake simulator
#buildings

Engineers shake tallest steel-framed building ever tested on an earthquake simulator
The tallest steel-framed building ever tested on an earthquake simulator started moving slowly, swaying and twisting. The 10-story, 100-foot structure was experiencing simulations of real earthquakes, including the 6.9 magnitude, 1989 Loma Prieta temblor, as part of an effort to determine if height limits for buildings made of cold-formed steel could be increased.

Earthquake body wave extraction using sparsity-promoting polarization filtering in the time-frequency domain
Hamzeh Mohammadigheymasi, Bahare Imanibadrbani, Ali Gholami, Ahmad Sadidkhouy
https://arxiv.org/abs/2508.20542

Earthquake body wave extraction using sparsity-promoting polarization filtering in the time-frequency domain
Seismic waves generated by earthquakes consist of multiple phases that carry critical information about Earth's internal structure as they propagate through heterogeneous media. These phases provide constraints from different regions of the Earth, such as the crust, mantle, and even the cores. The choice of phase depends on the study target and scientific objective: surface waves are suited for imaging shallow structures, whereas body waves yield higher-resolution information at depth. A key ch…

Do Earthquakes Wake More Slopes Than They Calm?
Ashok Dahal, Hakan Tanya\c{s}, Alexander L. Handwerger, Luigi Lombardo, Eric Fielding
https://arxiv.org/abs/2508.08819 https://…

Do Earthquakes Wake More Slopes Than They Calm?
Strong earthquakes can have a dual impact on the slow-moving landslide budget of a landscape by either triggering new actively deforming hillslopes or stabilizing existing ones. However, their regional-scale influence on hillslope processes remains poorly understood due to limited observational coverage and the masking effects of long-wavelength post-seismic signals. This knowledge gap constrains our ability to assess post-seismic landslide hazards, particularly since actively deforming hillslo…

Robust Beamforming for Magnetic Induction Based Underground Emergency Communications
Jianyu Wang, Tianrui Hou, Wenchi Cheng, Hailin Zhang
https://arxiv.org/abs/2510.03852 https:…

Robust Beamforming for Magnetic Induction Based Underground Emergency Communications
Magnetic induction (MI) communication is an effective underground emergency communication technique after disasters such as landslides, mine collapses, and earthquakes, due to its advantages in mediums such as soil, concrete, and metals. Based on channel state information (CSI), magnetic beamforming can significantly improve the performance of MI communication. However, in post-disaster underground communication, channel estimation may suffer from errors due to factors such as complex environme…

Tidal Triggering of Magnitude 7 Earthquakes by Jupiter
E. W. Holt, Eric Newman
https://arxiv.org/abs/2508.07064 https://arxiv.org/pdf/2508.07064

Tidal Triggering of Magnitude 7+ Earthquakes by Jupiter
This work uses a chi-squared test of independence to determine if days that include earthquakes greater than or equal to magnitude 7 (M7+) from 1960 to 2024 are truly independent of the position of Earth in its orbit around the sun. To this end, this study breaks up Earth's orbit into days offset on either side of two reference Earth-Sun-Planet orientations, or zero-points: opposition and inferior conjunction. A computer program is used to sample U.S.G.S. earthquake and N.A.S.A. Horizons epheme…

Multi-Frequency Resonating Based Magnetic Induction Underground Emergency Communications with Diverse Mediums
Jianyu Wang, Zhichao Li, Wenchi Cheng, Wei Zhang, Hailin Zhang
https://arxiv.org/abs/2510.03848

Multi-Frequency Resonating Based Magnetic Induction Underground Emergency Communications with Diverse Mediums
Magnetic induction (MI) communication is an effective underground emergency communication technique after disasters such as landslides, mine collapses, and earthquakes, due to its advantages in mediums such as soil, concrete, and metals. However, the propagation mediums in practical MI based underground emergency communications are usually diverse and composed randomly due to the impact of disasters, which poses a challenge for MI communication in practical applications. In this paper, we formu…

Global lattice models of a rotating planet -- view on shake, rattle and roll
William E. Barnfield, Alessio Kandiah, Vladimir Frid, Igor B. Movchan, Alexander B. Movchan
https://arxiv.org/abs/2508.16630

Global lattice models of a rotating planet -- view on shake, rattle and roll
A new approach, based on the analysis of a spectral problem for a discrete gyroscopic system, to modelling earthquakes on a rotating planet is presented in this paper. The eigenmodes of gyroscopic three-dimensional icosahedron-dodecahedron lattices are used for the discrete approximations of Earth's vibrations. Related model of the gyroscopic centred icosahedron lattice reveals new results about the motion of Earth's core. The vibrations of the tectonic plate boundaries, inducing shear and long…

SPIDER: Scalable Probabilistic Inference for Differential Earthquake Relocation
Zachary E. Ross, John D. Wilding, Kamyar Azizzadenesheli, Aitaro Kato
https://arxiv.org/abs/2508.12117

SPIDER: Scalable Probabilistic Inference for Differential Earthquake Relocation
Seismicity catalogs are larger than ever due to an explosion of techniques for enhanced earthquake detection and an abundance of high-quality datasets. Bayesian inference is a popular framework for locating earthquakes due to its ability to propagate and quantify uncertainty into the inversion results, but traditional methods do not scale well to high-dimensional parameter spaces, making them unsuitable for double-difference relocation where the number of parameters can reach the millions. Here…

Replaced article(s) found for physics.geo-ph. https://arxiv.org/list/physics.geo-ph/new
[1/1]:
- Revealing Hidden Precursors to Earthquakes via a Stress-Sensitive Transformation of Seismic Noise
Nader Shakibay Senobari

Turbulence in the Geomagnetic Field at Earth Surface
Mingshu Zhao, Xiaoping Zeng, Yunfang Lin
https://arxiv.org/abs/2508.06143 https://arxiv.org/pdf/2508.0…

Turbulence in the Geomagnetic Field at Earth Surface
We investigated turbulence-like behavior in the geomagnetic field using ground-based magnetic observatory data across China. Through analysis of spatial and temporal structure functions, we find power-law scaling consistent with Kolmogorov-like turbulence under extended self-similarity. We also identify significant correlations between vertical geomagnetic field variations and large earthquakes. The combination of turbulent characteristics with these correlations suggests a physical mechanism w…

Role of non-extensivity $q$-parameter in tectonic seismic forecasting
Oscar Sotolongo-Costa, Miguel Eduardo Mora-Ramos
https://arxiv.org/abs/2508.04932 https://

Role of non-extensivity $q$-parameter in tectonic seismic forecasting
By writing total Tsallis entropy as a function of non-extensivity q-parameter withing the fragment-asperity model for earthquakes, a critical range of values is identified: 1.4

From Local Earthquake Nowcasting to Natural Time Forecasting: A Simple Do-It-Yourself (DIY) Method
John B Rundle, Ian Baughman, Andrea Donnellan, Lisa Grant, Geoffrey Fox
https://arxiv.org/abs/2510.02467

From Local Earthquake Nowcasting to Natural Time Forecasting: A Simple Do-It-Yourself (DIY) Method
Previous papers have outlined nowcasting methods to track the current state of earthquake hazard using only observed seismic catalogs. The basis for one of these methods, the "counting method", is the Gutenberg-Richter (GR) magnitude-frequency relation. The GR relation states that for every large earthquake of magnitude greater than MT , there are on average NGR small earthquakes of magnitude MS. In this paper we use this basic relation, combined with the Receiver Operating Characteristic (ROC)…