Results 1 to 10 of about 825 (166)

Method for estimating the stress field from seismic moment tensor data based on the flow rule in plasticity theory

open access: yesGeophysical Research Letters, 2016
The stress field is a key factor controlling earthquake occurrence and crustal evolution. In this study, we propose an approach for determining the stress field in a region using seismic moment tensors, based on the classical equation in plasticity ...
S. Matsumoto
doaj   +2 more sources

LARGE earthquake proximity indicated by seismic moment efficiency and frequency-number distribution of small earthquakes [PDF]

open access: yesScientific Reports
The size distribution of minor earthquakes, characterized by a power-law decay (b-value), sometimes indicates the hazard information of major earthquakes.
Satoshi Matsumoto
doaj   +2 more sources

Moment tensor solutions for the Amatrice 2016 seismic sequence

open access: yesAnnals of Geophysics, 2016
On August 24, 2016 a ML 6.0 earthquake struck central Italy region, nearly completely destroying some small ancient towns as Amatrice, Accumoli, Arquata and Pescara del Tronto. In the following days thousands of aftershocks have been recorded by the INGV
Silvia Pondrelli   +2 more
doaj   +3 more sources

Modeling of earthquake source parameters on December 12, 2018 (08:49:56,16; 36,4478° N; 140,5788° E; H = 62,0 km; Mw = 4,3, Japan)

open access: yesГеофизический журнал, 2021
Modeling of earthquake source parameters, such as the orientation of the fault plane and the direction of the fault slip, is important for understanding the physics of earthquake source processes, determining the stress-strain state of the geological ...
R.M. Pak, O.D. Hrytsai
doaj   +1 more source

How to Assess the Moment Tensor Inversion Resolution for Mining Induced Seismicity: A Case Study for the Rudna Mine, Poland

open access: yesFrontiers in Earth Science, 2021
Underground exploitation of georesources can be highly correlated with induced seismic activity. In order to reduce the risk and improve the mining operations safety, the mining activity is monitored by a dedicated seismic network.
Alicja Caputa   +2 more
doaj   +1 more source

High-rate GNSS data in seismic moment tensor inversion: application to anthropogenic earthquakes

open access: yesGeomatics, Natural Hazards & Risk, 2023
Earthquakes are traditionally monitored by seismic networks. However, the progress in high-rate Global Navigation Satellite Systems (GNSS) observations caused them to be included as a standard supplementary tool for strong natural earthquake monitoring ...
Iwona Kudłacik   +4 more
doaj   +1 more source

Near-Field Seismic Motion: Waves, Deformations and Seismic Moment

open access: yesAxioms, 2022
The tensorial force acting in a localized seismic focus is introduced and the corresponding seismic waves are derived, as solutions of the elastic wave equation in a homogeneous and isotropic body. The deconvolution of the solution for a structured focal
Bogdan Felix Apostol
doaj   +1 more source

The first-order statistical moment of the seismic moment tensor [PDF]

open access: yesGeophysical Journal International, 1985
Summary. If a complex earthquake is assumed to be a set of individual, randomly oriented elementary pure double couple sources, the solution for the seismic moment of the complex event projected on the mean trend of the fault will perforce be comprised of sources of both double couple and compensated linear vector dipole (CLVD) types.
Y. Y. Kagan, L. Knopoff
openaire   +1 more source

Moment Tensor Solutions for Earthquakes in the Southern Korean Peninsula Using Three-Dimensional Seismic Waveform Simulations

open access: yesFrontiers in Earth Science, 2022
Precise estimates of earthquake source properties are crucial for understanding earthquake processes and assessing seismic hazards. Seismic waveforms can be affected not only by individual event properties, but from the Earth’s interior heterogeneity ...
Jung-Hun Song   +4 more
doaj   +1 more source

A new procedure for evaluating light-to-moderate earthquake location based on InSAR data and forward modeling tested on Mediterranean area

open access: yesScience of Remote Sensing, 2022
We propose a procedure based on remote sensing Sentinel-1 InSAR data aiming at evaluating the variability of the moment tensor solutions provided by different agencies in case of light-to-moderate earthquake.
M. Polcari, S. Atzori, I. Munafò
doaj   +1 more source

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