Results 31 to 40 of about 1,216,082 (231)

Seismic Fragility Assessment of Special Truss Moment Frames (STMF) Using the Capacity Spectrum Method [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2015
Fragility curves represent the probabilities that structural damages, under various levels of seismic excitation, will exceed the specified damage states by means of earthquake intensity damage relations.
Gholamreza Abdollahzadeh   +2 more
doaj   +1 more source

Assessing infrequent large earthquakes using geomorphology and geodesy in the Malawi Rift [PDF]

open access: yes, 2015
In regions with large, mature fault systems, a characteristic earthquake model may be more appropriate for modelling earthquake occurrence than extrapolating from a short history of small, instrumentally observed earthquakes using the Gutenberg–Richter ...
Biggs, Juliet   +9 more
core   +1 more source

Spectral-Element Simulations of 3-D Seismic Wave Propagation and Applications to Source and Structural Inversions [PDF]

open access: yes, 2006
This thesis presents a concise introduction to the spectral-element method and its applications to the simulation of seismic wave propagation in 3-D earth models.
Liu, Qinya
core   +1 more source

Cyclic Performance of End-Plate Biaxial Moment Connection with HSS Columns

open access: yesMetals, 2020
This paper presents a numerical study on the seismic performance of end-plate moment connection between I-beam to HSS (hollow structural section) column stiffened by outer diaphragms (EP-HSS).
Eduardo Nuñez   +2 more
doaj   +1 more source

Coda-derived source properties estimated using local earthquakes in the Sea of Marmara, Türkiye [PDF]

open access: yesSolid Earth
Accurate estimates of the moment magnitude of earthquakes that physically measure the earthquake source energy are crucial for improving our understanding of seismic hazard in regions prone to tectonic activity. To address this demand, a method involving
B. Özkan   +3 more
doaj   +1 more source

Swedish National Seismic Network

open access: yes, 1904
The Swedish National Seismic Network (SNSN) started with the installation of a Wiechert seismograph in Uppsala in 1904. Since 1998 the SNSN is a part of the Department of Earth Sciences at Uppsala University.
Swedish National Seismic Network
core   +1 more source

Experimental evaluation of the seismic performance of steel MRFs with compressed elastomer dampers using large-scale real-time hybrid simulation [PDF]

open access: yes, 2011
Real-time hybrid simulation combines experimental testing and numerical simulation, and thus is a viable experimental technique for evaluating the effectiveness of supplemental damping devices for seismic hazard mitigation.
Karavasilis, Theodore L.   +11 more
core   +1 more source

Determination of radiated energy and energy-moment ratio for the 2025 Dingri, Xizang M6.8 earthquakeKey points

open access: yesEarthquake Science
Radiated seismic energy is a quantitative characteristic of an earthquake that depends not only on the initial and final stresses, but also on the rupture history, and reflects the dynamic characteristics of the source.
Yixiao Zhang   +3 more
doaj   +1 more source

Seismic structure and earthquake focal mechanisms of the Hengill volcanic complex, S W Iceland [PDF]

open access: yes, 1996
Iceland provides a unique opportunity to study the processes that occur along mid- ocean ridges. In 1991, thirty temporary seismic stations were installed at the Hengill volcanic complex to record high-quality digital data from local earthquakes.
Miller, Angus D.
core  

Broad-band moment tensor inversion from single station, regional surface waves for the 1990, NW-Iran earthquake sequence

open access: yesAnnals of Geophysics, 1994
e present a method for the inversion of complete waveforms in the 5-30 mHz frequency band for moment tensor determination. The method is based on the calibration of phase and group velocity dispersion curves for Rayleigh and Love fundamental modes to ...
B. Palombo   +3 more
doaj   +1 more source

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