Results 21 to 30 of about 5,588,444 (128)

Statistical properties of seismic foreshocks and aftershocks associated with longwall mining: Implications from the Epidemic Type Aftershock Sequence model

Journal of Rock Mechanics and Geotechnical Engineering
The control and management of mining-induced seismic hazards have attracted ever-rising attention, especially in underground longwall coal mines, where continuous mining activities dynamically alter the stress states and induce seismic events.
Xu Li, Guangyao Si, Bobo Shi, Wenzhuo Cao, Wu Cai, Joung Oh, Ismet Canbulat   +6 more
doaj   +1 more source

Bayesian Inference of Complex Stress Evolution in Rate‐and‐State Governed Faults Constrained by Seismicity Rate Observations

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Temporal changes in seismicity rates can be conceptually understood as a response and consequence of stress changes. Dieterich (1994, https://doi.org/10.1029/93JB02581) formalized this relationship using empirically derived rate‐and‐state friction laws, and Heimisson and Segall (2018, https://doi.org/10.1029/2018JB015656) later generalized the
Y. Jiang, D. T. Trugman, P. J. González
wiley   +1 more source

Prototyping the Seismogenic Fault Injection Test (SFIT)

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The treatment of induced seismicity risk would benefit from a small, standardized injection test that probes the seismic response to fluid injection—to optimally improve earthquake forecasts before a larger injection commences. To accomplish this goal, we propose a “model differencing” framework: this framework optimizes injection protocols by
Ryan Schultz, Antonio Pio Rinaldi, Stefan Wiemer   +2 more
wiley   +1 more source

The Q$$ Q $$‐Score: A Magnitude‐Weighted Goodness‐of‐Fit Score for Earthquake Forecasting

Environmetrics, Volume 37, Issue 5, July 2026.
ABSTRACT Accurate forecasting of large earthquakes is of great importance, yet most current earthquake forecast evaluation metrics, such as the log‐likelihood score, do not give additional weight to large‐magnitude events. To this end, magnitude‐weighted goodness‐of‐fit scores for earthquake forecasting have recently been introduced, such as potency ...
Julia Jansson Valter, Alejandra Arjon, Francesco Serafini, Frederic Schoenberg   +3 more
wiley   +1 more source

Reduced seismic activity after mega earthquakes

Communications Earth & Environment
Mainshocks are often followed by increased earthquake activity (aftershocks). According to the Omori-Utsu law, the rate of aftershocks decays as a power law over time.
Yongwen Zhang, Maor Elbaz, Shlomo Havlin, Yosef Ashkenazy   +3 more
doaj   +1 more source

Brittle Creep as a Mechanism for Postseismic Relaxation in Upper Crustal Dolomite Marble

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract In many locations, earthquakes in the upper crust occur in carbonate rocks, whose deformation affects aftershock sequences and postseismic relaxation. We investigate the stress relaxation process and strain evolution in Jinping dolomite marble (porosity <0.2%) subjected to multi‐stage stress ramp‐relaxation cycles under confining pressures of ...
Shuting Miao, Pengzhi Pan, François Renard, Erik Rybacki, Arno Zang   +4 more
wiley   +1 more source

Strain rate and temperature dependence of Omori law scaling constants of AE data: Implications for earthquake foreshock-aftershock sequences [PDF]

, 2004
Little is known about the temperature and strain rate dependence of acoustic emission AE activity (AE). Hence, we carried out a preliminary series of flow-through triaxial compression tests on porous sandstones at different temperatures and strain rates.
Ira O. Ojala, Main, Ian G.; id_orcid, Ojala, Ira O., Ngwenya, Bryne T.   +3 more
core   +1 more source

Statistical Analysis of Seismicity in West Sumatra (2015–2025) and Aftershock Decay of the 2009 Padang Earthquake Using Gutenberg–Richter and Omori–Utsu Laws

KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA
Previous studies on seismicity in West Sumatra have generally focused either on frequency–magnitude distribution or aftershock decay separately, with limited integration of updated earthquake catalogs and combined statistical approaches. This study examines the seismicity of West Sumatra using the Gutenberg–Richter (GR) law and the Omori–Utsu ...
Harsono Jayadi, Nur Afni Oktavia Nusi, Icha Untari Meidji   +2 more
openaire   +1 more source

Fault Volume Digital Twin to Reproduce the Full Slip Spectrum, Scaling, and Statistical Laws

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Seismological and geodetic observations of fault zones reveal diverse slip dynamics, scaling, and statistical laws. Existing mechanisms explain some but not all of these behaviors. We show that incorporating an off‐fault damage zone—characterized by distributed fractures surrounding a main fault—can reproduce many key features observed in ...
M. Almakari, N. Kheirdast, C. Villafuerte, M. Y. Thomas, P. Dubernet, J. Cheng, A. Gupta, P. Romanet, S. Chaillat, H. S. Bhat   +9 more
wiley   +1 more source

Partial Ruptures, Cascading Multi‐Fault Ruptures, and Aftershocks in 2D Random Fault Network

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The Gutenberg‐Richter law for the distribution of earthquake magnitude and the Omori law for the decay of aftershocks are two universal laws in seismicity. Although numerical models have been developed to reproduce these laws, they sometimes produce many more foreshocks and fewer aftershocks than observed.
So Ozawa
wiley   +1 more source