Results 51 to 60 of about 5,588,675 (211)

Dependence of the Omori‐Utsu law parameters on main shock magnitude: Observations and modeling [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2008
We examine the dependence on main shock magnitudemof thepandχparameters appearing in Omori‐Utsu formulaλ(t,m) =χ× (t+c)−prelating the rate of aftershocksλat timetafter a main shock. Observations point out to a significant increase ofpwithm, along with a scaling relationship of the formχ∼ 10αm.
Hainzl, S., Marsan, David
openaire   +4 more sources

Variations in precursory slip behavior resulting from frictional heterogeneity

open access: yesProgress in Earth and Planetary Science, 2018
Precursory seismicity is often observed before a large earthquake. Small foreshocks occur within the mainshock rupture area, which cannot be explained by simple models that assume homogeneous friction on the entire fault.
Suguru Yabe, Satoshi Ide
doaj   +1 more source

Can Domain‐Informed Design Improve Neural Spatio‐Temporal Point Processes for Earthquake Forecasting?

open access: yesEarth's Future, Volume 14, Issue 8, August 2026.
Abstract Statistical earthquake forecasting models, such as the Epidemic‐type Aftershock Sequence (ETAS), embed decades of empirical knowledge and assumptions about earthquake triggering, clustering, and catalog completeness. In contrast, neural spatio‐temporal point process (STPP) models often treat seismicity as generic spatiotemporal data without ...
Weixi Tian   +3 more
wiley   +1 more source

Aftershock Hazard Magnitude, Time, and Location Probability Forecasting

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2014
This study combines branching aftershock sequence (BASS) and modified Omori¡¦s law to develop a predictive model for forecasting the magnitude, time, and location of aftershocks of magnitude Mw ≥ 5.00 in large earthquakes.
Kuei-Pao Chen   +3 more
doaj   +1 more source

Aftershock Rate Changes at Different Ocean Tide Heights

open access: yesFrontiers in Earth Science, 2020
The differential probability gain approach is used to estimate quantitatively the change in aftershock rate at various levels of ocean tides relative to the average rate model.
P. N. Shebalin, A. A. Baranov
doaj   +1 more source

Geometric Moment Modulated and Maximum Entropy Informed Earthquake + Afterslip Sequences

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Synthetic earthquake sequences may be of interest for comparisons with seismicity and afterslip evolution from instrumental observations and deeper time paleoseismic event histories, as well as for forecasting purposes. Here, we describe a constructed method, independent of continuum mechanics, for generating long‐duration earthquake and ...
Brendan Meade
wiley   +1 more source

Omori‐like decay of postseismic velocities following continental earthquakes

open access: yesGeophysical Research Letters, 2017
Various mechanisms have been proposed to explain the transient, enhanced surface deformation rates following earthquakes. Unfortunately, these different mechanisms can produce very similar surface deformation patterns leading to difficulty in ...
T. Ingleby, T. J. Wright
doaj   +1 more source

The Analysis of the Aftershock Sequences of the Recent Mainshocks in Alaska

open access: yesApplied Sciences, 2022
The forecasting of the evolution of natural hazards is an important and critical problem in natural sciences and engineering. Earthquake forecasting is one such example and is a difficult task due to the complexity of the occurrence of earthquakes. Since
Mohammadamin Sedghizadeh   +1 more
doaj   +1 more source

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

open access: yesJournal 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

Residual Strain Mechanism of Aftershocks and Exponents of the Modified Omori's Law [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2019
AbstractThe rate of aftershocks caused by residual stresses left after a major seismic event or material failure is considered. It is assumed that the local (or “micro” with respect to the scale of the major event) failures registered as aftershocks are produced by static fatigue (delayed fracture).
A. V. Dyskin, E. Pasternak
openaire   +1 more source

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