Results 21 to 30 of about 209,990 (301)

Post-seismic relaxation from geodetic and seismic data

open access: yesGeodesy and Geodynamics, 2017
We have examined the aftershock sequence and the post-seismic deformation process of the Parkfield earthquake (2004, M = 6, California, USA) source area using GPS data.
Mikhail V. Rodkin, Vladimir I. Kaftan
doaj   +1 more source

Seismic data processing [PDF]

open access: yesElectronics and Power, 1976
An article in the 27th November 1975 Electronics & Power described aspects of seismic exploration in the North Sea. This article considers the computer processing necessary to convert the field data into the final geophysical cross-section which completes this first phase of the geophysical ...
openaire   +1 more source

Seismic stratigraphy of the Ontong Java Plateau [PDF]

open access: yes, 1993
The Ontong Java Plateau, a large, deep-water carbonate plateau in the western equatorial Pacific, is an ideal location for studying responses of carbonate sedimentation to the effects of changing paleoceanographic conditions.
Bassinot, Frank   +8 more
core   +2 more sources

Seismic Performance Evaluation of Retrofitted Bridge by Isolation Bearings

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2009
The seismic performance evaluation and retrofit process are very important in existing bridges. If the result is not appropriate, then retrofit process are required.
Kyoung-Bong Han   +2 more
doaj   +1 more source

A Method to Avoid Underestimated Risks in Seismic SUPSA and MUPSA for Nuclear Power Plants Caused by Partitioning Events

open access: yesEnergies, 2021
Seismic probabilistic safety assessment (PSA) models for nuclear power plants (NPPs) have many non-rare events whose failure probabilities are proportional to the seismic ground acceleration.
Woo Sik Jung
doaj   +1 more source

Seismic modeling using the frozen Gaussian approximation

open access: yes, 2013
We adopt the frozen Gaussian approximation (FGA) for modeling seismic waves. The method belongs to the category of ray-based beam methods. It decomposes seismic wavefield into a set of Gaussian functions and propagates these Gaussian functions along ...
Albertin U.   +9 more
core   +1 more source

Machine learning for gravitational-wave detection: surrogate Wiener filtering for the prediction and optimized cancellation of Newtonian noise at Virgo

open access: yes, 2020
The cancellation of noise from terrestrial gravity fluctuations, also known as Newtonian noise (NN), in gravitational-wave detectors is a formidable challenge. Gravity fluctuations result from density perturbations associated with environmental fields, e.
Badaracco, F   +11 more
core   +1 more source

The direct boundary element method: 2D site effects assessment on laterally varying layered media (methodology) [PDF]

open access: yes, 2004
The Direct Boundary Element Method (DBEM) is presented to solve the elastodynamic field equations in 2D, and a complete comprehensive implementation is given. The DBEM is a useful approach to obtain reliable numerical estimates of site effects on seismic
Aki   +28 more
core   +2 more sources

An Analysis of Meteorological Anomalies in Kamchatka in Connection with the Seismic Process

open access: yesAtmosphere
This study investigates the hypothesis that meteorological anomalies may precede earthquake events. Long-term time series of observations for air temperature, atmospheric pressure and precipitation at a meteorological station in Kamchatka are considered.
Alexey Lyubushin   +3 more
doaj   +1 more source

Приложение эредитарной модели критичности к исследованию характеристик сейсмического процесса в зоне субдукции Курило-Камчатской островной дуги

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
В статье представлены результаты статистической обработки данных каталога землетрясений КФ ФИЦ ЕГС РАН за период 01.01.1962 − 31.12.2002 гг. для зоны субдукции Курило-Камчатской островной дуги в рамках ранее представленной авторами эредитарной модели ...
Шереметьева, О.В.   +1 more
doaj   +1 more source

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