Results 31 to 40 of about 5,588,444 (128)

Hydro‐Mechanical Controls on Swarm Recurrence on the Westernmost Gofar Transform Fault, East Pacific Rise

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Swarms are microearthquake clusters governed by aseismic deformation, fluid migration, and stress changes, but the underlying mechanisms for their recurrence remain elusive. In 2008, abundant swarms were observed on the westernmost Gofar transform fault.
Lintong Jiang, Shihuai Zhang, Xiaying Li
wiley   +1 more source

Thermally Activated Static Friction Can Explain Earthquake Interactions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Unlike meteorological hazards, tectonic earthquakes remain hardly predictable, reinforcing their deadly character. This relates to an out‐of‐equilibrium, intermittent dynamic associated with a strong time asymmetry, with few and non‐systematic foreshocks sometimes preceding large earthquakes, while aftershocks are ubiquitous and have been ...
J. Weiss, D. Marsan, P. Thiraux
wiley   +1 more source

An axiomatic method for studying the truth or falsity of the Hirano-Utsu law describing aftershocks [PDF]

The power law of aftershock evolution was proposed by Hirano in 1924 and introduced by Utsu into seismology in the second half of the last century. The Hirano-Utsu law is widely used in studying the relaxation of earthquake source after the main shock of
Guglielmi, A. V.
core   +1 more source

Rupture Cascade Initiated by Wastewater Disposal: Nucleation and Domino Effect of Canada's Largest Induced Earthquake

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract In 2022–2023, three local‐magnitude (ML) 4.8–5.6 earthquakes shook the Peace River oilsands area of Alberta, Canada. Previous studies statistically linked the seismicity to nearby disposal activities but lacked in‐depth investigation into triggering mechanisms, including subsurface fluid migration and earthquake interaction.
Wenhan Sun, Yu Jeffrey Gu, Yajing Liu, Tianyang Li, Ruijia Wang, Jingchuan Wang, Rebecca Harrington, Marco Roth, Ryan Schultz, Guangyu Xu, Guoyan Jiang   +10 more
wiley   +1 more source

Aftershock analysis and forecasting for the crustal seismicity in Romania

Earth, Planets and Space
Romania is known for its persistent seismicity at intermediate-depths in the Vrancea region. However, crustal areas are also a significant source of seismic hazard, although large shallow events are less common.
Cristian Ghita, Bogdan Enescu, Alexandru Marinus, Iren-Adelina Moldovan, Constantin Ionescu, Eduard Gabriel Constantinescu, Like An   +6 more
doaj   +1 more source

Automatic Earthquake Declustering Using the Nearest‐Neighbor Distance

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract In the widely adopted description of seismic occurrence, earthquakes are categorized as either background or triggered events. In this work, we present a fully automated, non‐parametric algorithm for distinguishing between these two categories, a process known as seismic declustering, based on the widely used nearest‐neighbor (NN) metric.
P. Bountzis, E. Lippiello, S. Baccari, G. Petrillo   +3 more
wiley   +1 more source

Multifractal Omori-Utsu Law for Earthquake Triggering-Theory and Empirical Tests on the SCEC, Harvard and JMA Catalogs

, 2007
Multifractal Omori-Utsu Law for Earthquake Triggering-Theory and Empirical Tests on the SCEC, Harvard and JMA CatalogsIstituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, Italy Institute of Statistical Mathematics (ISM), Tokyo, Japan Swiss ...
Sornette, D., Ouillon, G.
core   +1 more source

Spatial Interactions Govern Tectonic Tremor Activities in the Nankai Trough: A Statistical Approach for Spatiotemporal Pattern Modeling and Anomaly Detection

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Establishing a quantitative framework to evaluate the spatiotemporal patterns of slow earthquakes and to detect their anomalous activities is essential for understanding diverse slip behaviors on plate boundaries and seismic hazard assessment. In this study, we focus on deep tectonic tremors, which are one manifestation of slow earthquakes and
Seiya Yano, Satoshi Ide, Shunichi Nomura
wiley   +1 more source

Nowcasting Earthquakes With Stochastic Simulations: Information Entropy of Earthquake Catalogs

Earth and Space Science
Earthquake nowcasting has been proposed as a means of tracking the change in large earthquake potential in a seismically active area. The method was developed using observable seismic data, in which probabilities of future large earthquakes can be ...
John B. Rundle, Ian Baughman, Tianjian Zhang   +2 more
doaj   +1 more source

Unsupervised Likelihood Inference of the b‐Value via Magnitude Differences

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Estimating the Gutenberg–Richter b‐value from seismic catalogs is critical for earthquake forecasting and hazard assessment. However, traditional approaches rely on predefined magnitude thresholds and are highly sensitive to catalog incompleteness, limiting their applicability in automated or real‐time settings.
C. Godano, E. Lippiello, G. Petrillo
wiley   +1 more source