Results 21 to 30 of about 33,274 (166)

A semi-automated algorithm to quantify scarp morphology (SPARTA): application to normal faults in southern Malawi [PDF]

open access: yesSolid Earth, 2019
Along-strike variation in scarp morphology reflects differences in a fault's geomorphic and structural development and can thus indicate fault rupture history and mechanical segmentation. Parameters that define scarp morphology (height, width, slope) are
M. Hodge   +9 more
doaj   +1 more source

Application of the Fractional Riccati Equation for Mathematical Modeling of Dynamic Processes with Saturation and Memory Effect

open access: yesFractal and Fractional, 2022
In this study, the model Riccati equation with variable coefficients as functions, as well as a derivative of a fractional variable order (VO) of the Gerasimov-Caputo type, is used to approximate the data for some physical processes with saturation.
Dmitriy Tverdyi, Roman Parovik
doaj   +1 more source

Discrepancy between local and moment magnitudes attributed to radiated seismic energy

open access: yesEarth, Planets and Space
We investigated the factors contributing to variations in local magnitude (M L ) among earthquakes of comparable moment magnitude (M w ). Specifically, we examined how radiated energy accounts for the difference between M w and M jma (∆M = M w  − M jma),
Masaki Orimo   +4 more
doaj   +1 more source

A clustering-based repeating earthquakes identification method and its application

open access: yes地球与行星物理论评
Events with highly similar waveforms and rupturing of the same fault patch are interpreted as repeating earthquakes, which can be applied in detecting deep fault deformation, characterizing fault behavior, and assess seismic hazards.
Yafen Huang   +4 more
doaj   +1 more source

Evaluation of the favorability of faults to slip: the case of the 2024 Noto Peninsula earthquake

open access: yesEarth, Planets and Space
The 2024 Noto Peninsula earthquake (M 7.6) occurred at a depth of approximately 15 km in the eastern part of Noto Peninsula. The high dip angle faults (50–60°) in this area were formed by the extensional stress field during the formation of the Japan Sea.
Ayaka Tagami   +12 more
doaj   +1 more source

Comparison between the Hamiltonian Monte Carlo method and the Metropolis–Hastings method for coseismic fault model estimation

open access: yesEarth, Planets and Space, 2022
A rapid source fault estimation and quantitative assessment of the uncertainty of the estimated model can elucidate the occurrence mechanism of earthquakes and inform disaster damage mitigation.
Taisuke Yamada   +2 more
doaj   +1 more source

Earthquake Moment Magnitudes from Peak Ground Displacements and Synthetic Green's Functions

open access: yesSeismica
We suggest an approach employing full waveforms from synthetic seismograms to estimate moment magnitudes and their uncertainties from peak amplitudes. The new method is theoretically derived.
Torsten Dahm   +4 more
doaj   +1 more source

Shear wave splitting and seismic velocity structure in the focal area of the earthquake swarm and their relation with earthquake swarm activity in the Noto Peninsula, central Japan

open access: yesEarth, Planets and Space
Seismic activity in the Noto region of Ishikawa Prefecture, central Japan, has increased since August 2020 and has continued as of August 2023. Stress changes due to subsurface sources and increases in fluid pressure have been discussed as the causes of ...
Tomomi Okada   +12 more
doaj   +1 more source

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