Results 41 to 50 of about 65,463 (321)

A combined method for high-speed rail seismic monitoring and early warning

open access: yesGeodesy and Geodynamics, 2017
The ground motion characteristics include the strength, frequency spectrum and duration time. In China, the PGA (peak ground acceleration) is commonly used in determination of whether an earthquake warning is necessary when the high-speed train is on the
Zhigao Chen, Jun Huang
doaj   +1 more source

Real-time seismology and earthquake damage mitigation [PDF]

open access: yes, 2005
Real-time seismology refers to a practice in which seismic data are collected and analyzed quickly after a significant seismic event, so that the results can be effectively used for postearthquake emergency response and early warning.
Kanamori, Hiroo
core   +1 more source

Correlation of the slope of the initial part of P-wave envelope, hypocenter depth and plate boundary

open access: yesGeodesy and Geodynamics, 2018
We investigated correlation of the slope of the initial part of P-wave envelope, hypocenter depth and plate boundaries by B-Δ method, which is used to determine epicentral distances in the Japan Meteorological Agency and Japan Railway Company earthquake ...
Chao Lian   +3 more
doaj   +1 more source

Synergistic combination of systems for structural health monitoring and earthquake early warning for structural health prognosis and diagnosis [PDF]

open access: yes, 2012
Earthquake early warning (EEW) systems are currently operating nationwide in Japan and are in beta-testing in California. Such a system detects an earthquake initiation using online signals from a seismic sensor network and broadcasts a warning of the ...
Beck, James L., Wu, Stephen
core   +1 more source

Discussion on the essence of earthquake early warning

open access: yes地震科学进展, 2022
With the development of the national earthquake intensity quick report and early warning project, more and more “earthquake early warning (EEW)” has come into public view.
Chaojun Zhang   +4 more
doaj   +1 more source

Seismological Aspects of the December 2004 Great Sumatra-Andaman Earthquake [PDF]

open access: yes, 2006
The 2004 Great Sumatra-Andaman earthquake had an average source duration of about 500 sec. and a rupture length of 1,200–1,300 km. The seismic moment, M0, determined with a finite source model, was 6.5×1022 N-m, which corresponds to Mw=9.18.
Kanamori, Hiroo
core   +1 more source

Automatic earthquake confirmation for early warning system [PDF]

open access: yesGeophysical Research Letters, 2015
AbstractEarthquake early warning studies are shifting real‐time seismology in earthquake science. They provide methods to rapidly assess earthquakes to predict damaging ground shaking. Preventing false alarms from these systems is key. Here we developed a simple, robust algorithm, Authorizing GRound shaking for Earthquake Early warning Systems (AGREEs),
Kuyuk, H. S.   +4 more
openaire   +3 more sources

Population response to earthquakes and earthquake early warnings in Mexico

open access: yesInternational Journal of Disaster Risk Reduction, 2021
Human responses to various natural hazards have been studied for more than a few decades. However, the effects of early warning interventions that alert the population to allow them time to take protective actions are not well known, at least to an extent where it could be compared within a socio-culturally similar region under two different scenarios:
Sandra Vaiciulyte   +3 more
openaire   +2 more sources

Electro-Mechanical Impedance (EMI) Based Interlayer Slide Detection Using Piezoceramic Smart Aggregates—A Feasibility Study

open access: yesSensors, 2018
Interlayer slide damage is one of the main causes of landslide hazard, inflicting huge economic losses and casualties. It is urgent to accurately detect the initiation and development of the interlayer slide damage in real time. In this paper, a study on
Jianchao Wu, Weijie Li, Qian Feng
doaj   +1 more source

Real-time Performance of the Virtual Seismologist Earthquake Early Warning Algorithm in Southern California [PDF]

open access: yes, 2009
The Virtual Seismologist (VS) method is a Bayesian approach to regional network-based earthquake early warning (EEW) that estimates earthquake magnitude, location, and the distribution of peak ground motion using observed ground motion amplitudes ...
Cua, Georgia   +3 more
core   +1 more source

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