Results 41 to 50 of about 5,848,790 (129)

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

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

Good practice report: new developments in physics- and statistics-based earthquake forecasting

, 2022
ETAS is currently the most widely accepted state-of-the-art when it comes to time-dependent earthquake forecasting. This model is based on a few simple assumptions and well-established empirical principles about earthquakes’ triggering behaviour. In ETAS,
Bayona, José A., Savran, William H., Mizrahi, Leila   +2 more
core   +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

Comparison of statistical low-frequency earthquake activity models

Earth, Planets and Space
Slow earthquakes are slow fault slip events. Quantifying and monitoring slow earthquake activity characteristics are important, because they may change before large earthquakes occur.
Tomoaki Nishikawa
doaj   +1 more source

Fluid Processes Highlighted by Temporal Variations of b‐Value During Swarms and Aftershocks Sequences in the Ubaye Region (Western Alps, France)

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract The b‐value from the Gutenberg‐Richter law is a crucial parameter in the assessment of seismic hazard. Its temporal variations may also bring useful insights on the processes driving seismicity at depth, even if not yet fully understood. In this paper, we focus on the temporal evolution of the b‐value in the Ubaye Region (French Western Alps ...
Marion Baques, Clara Duverger, Louis De Barros, Hervé Jomard, Maxime Godano   +4 more
wiley   +1 more source

Modelación estadística de eventos extremos para la predicción de terremotos en el Ecuador. [PDF]

, 2021
El objetivo de este estudio fue modelar los eventos extremos y proponer un modelo que permita obtener probabilidades de ocurrencia de un terremoto, para lo cual se utilizó el catálogo sísmico Global Centroid Moment Tensor (CMT) filtrando la información ...
Valladolid Sánchez, Cristina Micaela, Pilco Coro, Viviana Lizbeth   +1 more
core  

Mechanics and Statistics of Postseismic Shaking

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Analysis of 2 weeks of continuous post‐seismic shaking after the 2019 M7.1 Ridgecrest, CA earthquake sequence using 4 nearby borehole seismometers reveals that continuous ground motions decay as Omori's law in time and follow the Gutenberg‐Richter distribution in logarithmic amplitude.
T. Clements, E. S. Cochran, S. E. Minson, N. J. van der Elst, C. E. Yoon, A. Baltay, M. T. Page   +6 more
wiley   +1 more source

Modeling and Prediction of Aftershock Activity

, 2022
International audienceWe provide an overview of the basic models of the aftershock processes and advanced methods used to predict postseismic hazard. We consider both the physical mechanisms for aftershock generation and models of aftershocks and time ...
Baranov, Sergey, Narteau, Clement, Shebalin, Peter, Clement Narteau, Sergey Baranov, Peter Shebalin   +5 more
core   +1 more source