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Near-real Time Earthquake Bulletin

Near-real Time Earthquake Bulletin
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1999
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Bulletin provided by the National Earthquake Information Service (NEIS) of the U.S. Geological Survey as part of a cooperative project of the Council of the National Seismic System. Frequently updated list and interactive map of current earthquakes.

Regional Dependence in Earthquake Early Warning and Real Time Seismology

Regional Dependence in Earthquake Early Warning and Real Time Seismology
A Book

by Marta Caprio

  • Publisher : Unknown Publisher
  • Release : 2013
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Tomography of the Earth’s Crust: From Geophysical Sounding to Real-Time Monitoring

Tomography of the Earth’s Crust: From Geophysical Sounding to Real-Time Monitoring
GEOTECHNOLOGIEN Science Report No. 21

by Michael Weber,Ute Münch

  • Publisher : Springer Science & Business Media
  • Release : 2014-02-17
  • Pages : 176
  • ISBN : 331904205X
  • Language : En, Es, Fr & De
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The research work on the topic of ‘‘Tomography of the Earth’s Crust: From Geophysical Sounding to Real-Time Monitoring’’ has focused on the development of cross-scale multiparameter methods and their technological application together with the development of innovative field techniques. Seismic wave field inversion theory, diffusion and potential methods were developed and optimized with respect to cost and benefit aspects. This volume summarizes the scientific results of nine interdisciplinary joint projects funded by the German Federal Ministry of Education and Research in the framework of the Research and Development Program GEOTECHNOLOGIEN. Highlights and innovations presented cover many length scales and involve targets ranging from applications in the laboratory, to ground water surveys of heterogeneous aquifer, geotechnical applications like tunnel excavation, coal mine and CO2 monitoring and the imaging and monitoring of tectonic and societally relevant objects as active faults and volcanoes. To study these objects, the authors use the full spectrum of geophysical methods (ultrasonics, seismic and seismology, electromagnetics, gravity, and airborne) in combination with new methods like seismic interferometry, diffuse wave field theory and full-wave-form inversion in 3D and partially also in 4D. Geophysical Sounding to Real-Time Monitoring’’ has focused on the development of cross-scale multiparameter methods and their technological application together with the development of innovative field techniques. Seismic wave field inversion theory, diffusion and potential methods were developed and optimized with respect to cost and benefit aspects. This volume summarizes the scientific results of nine interdisciplinary joint projects funded by the German Federal Ministry of Education and Research in the framework of the Research and Development Program GEOTECHNOLOGIEN. Highlights and innovations presented cover many length scales and involve targets ranging from applications in the laboratory, to ground water surveys of heterogeneous aquifer, geotechnical applications like tunnel excavation, coal mine and CO2 monitoring and the imaging and monitoring of tectonic and societally relevant objects as active faults and volcanoes. To study these objects, the authors use the full spectrum of geophysical methods (ultrasonics, seismic and seismology, electromagnetics, gravity, and airborne) in combination with new methods like seismic interferometry, diffuse wave field theory and full-wave-form inversion in 3D and partially also in 4D. 2 monitoring and the imaging and monitoring of tectonic and societally relevant objects as active faults and volcanoes. To study these objects, the authors use the full spectrum of geophysical methods (ultrasonics, seismic and seismology, electromagnetics, gravity, and airborne) in combination with new methods like seismic interferometry, diffuse wave field theory and full-wave-form inversion in 3D and partially also in 4D.

A Seismic Monitoring and Alarm-system in Real Time (SMART) for Intelligent Structures

A Seismic Monitoring and Alarm-system in Real Time (SMART) for Intelligent Structures
A Book

by Stanford University. Department of Civil Engineering. Blume Earthquake Engineering Center,Yoshitaka Takeuchi,H. Allison Smith,Haresh C. Shah

  • Publisher : Unknown Publisher
  • Release : 1992
  • Pages : 128
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Real-time Seismology and Earthquake Hazard Mitigation

Real-time Seismology and Earthquake Hazard Mitigation
A Book

by Hiroo Kanamori,Egill Hauksson,Thomas H. Heaton

  • Publisher : Unknown Publisher
  • Release : 1997
  • Pages : 4
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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VADASE: a Brand New Approach to Real-time GNSS Seismology

VADASE: a Brand New Approach to Real-time GNSS Seismology
Assessment of a New Algorithm to Estimate in Real-time the 3D Displacements of a Single GNSS Receiver

by Gabriele Colosimo

  • Publisher : LAP Lambert Academic Publishing
  • Release : 2013-01
  • Pages : 180
  • ISBN : 9783845438382
  • Language : En, Es, Fr & De
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This book describes a new approach, named Variometric Approach for Displacements Analysis Stand-alone Engine (VADASE), originally designed to detect in real-time the 3D displacements of a GNSS receiver. VADASE is based upon a so called variometric algorithm able to retrieve in real-time the displacements of a unique receiver, with accuracies ranging from few centimeters up to a couple of decimeters. Eventually, VADASE was appointed as an effective contribution to GPS Seismology. First, the state of the art of GPS Seismology and the advantages and limitations that GNSS receivers can bring about with respect to seismology instruments are presented. Further, a review of the main applications that benefit from high-rate GNSS data availability is given, with an insight on earthquake and tsunami early warning systems. Then, the book illustrates VADASE functional model and the results obtained in several scenarios simulated by a Spirent GNSS data simulator. Importantly, receiver displacements achieved for real earthquakes by VADASE are assessed with respect to those obtained by the most used strategies in GPS Seismology (i.e. Precise Point Positioning and Differential Positioning).

Earthquakes: Risk, Detection, Warning, and Research

Earthquakes: Risk, Detection, Warning, and Research
A Book

by Anonim

  • Publisher : DIANE Publishing
  • Release : 2021
  • Pages : 329
  • ISBN : 1437928072
  • Language : En, Es, Fr & De
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Real-time Seismology at UC Berkeley

Real-time Seismology at UC Berkeley
The Rapid Earthquake Data Integration Project

by Lind S. Gee,Douglas S. Neuhauser,Douglas S. Dreger,Michael E. Pasyanos,Robert A. Uhrhammer,Barbara Romanowicz

  • Publisher : Unknown Publisher
  • Release : 1996
  • Pages : 10
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Applications of Artificial Neural Networks in Real-time Seismology and Surface-wave Profiling of the Lithosphere Beneath the Mojave Desert

Applications of Artificial Neural Networks in Real-time Seismology and Surface-wave Profiling of the Lithosphere Beneath the Mojave Desert
A Book

by Jin Wang

  • Publisher : Unknown Publisher
  • Release : 1995
  • Pages : 274
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Seismology

Seismology
A Book

by Bogdan Felix Apostol

  • Publisher : Unknown Publisher
  • Release : 2020-09-02
  • Pages : 345
  • ISBN : 9781536184921
  • Language : En, Es, Fr & De
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The book offers a comprehensive physical theory of the earthquakes. The presentation level is rather mathematical, but thorough physical explanations are provided everywhere.We do not know where and when and how great an earthquake occurs. The seismic events have a statistical character. Statistical Seismology is discussed extensively in this book, centered on the famous Gutenberg-Richter, Omori and Bath statistical laws. The earthquakes may be correlated, foreshocks may herald a main shock, aftershocks may follow a main shock. The pattern of such correlations, their extension in time and magnitude are discussed in this book. The earthquakes are produced by forces acting for a short time in a localized focal region placed inside the Earth. These forces give rise to elastic deformations and elastic waves, which arrive at Earth' surface as earthquakes. The nature of these forces and their effects are discussed in this book. Any earthquake begins by a feeble tremor, the so-called P and S seismic waves, followed by a large, main shock, which looks like a wall with a long tail. This book explains why it is so. We cannot predict the occurrence of the earthquakes. But we can know something about them. For instance, there exist seismographs, a sort of pendulums, which record the ground displacement. There exist agencies which tell us the earthquake magnitude, its energy, location, fault slip, by reading the seismograms. We may wish to get such information by ourselves, almost in real time, knowing the seismograph recordings, to be independent of the seismological agencies. This book teaches us how to do that. The book describes the accumulation of the seismic energy in the focal region, its release, the shape and strength of the ground displacement. It is shown that the seismic faults may give rise to rather complicated tensorial forces, which account both for the static deformations of the Earth's surface and for the seismic waves produced in an earthquake. A model of energy accumulation in the earthquake focus is formulated and used to derive the statistical Gutenberg-Richter laws. These laws are used to analize the statistics of the seismic events in Vrancea, Romania, as an example. A special emphasis is given to the short-term seismic activity. The book introduces the point tensorial force of the seismic faults and employs it to present both the static deformation of the Earth's crust in epicentral regions and the seismic waves and the main shock which appear on any typical seismogram. This later point is the solution of the so-called Lamb seismological problem. The book describes the determination of the seismic-moment tensor, earthquake magnitude, the volume of the focal region, the duration of the seismic activity in the focus, the fault orientation and the fault slip from measurements of the seismic waves at the Earth's surface. This is the solution of the inverse seismological problem. A special point is a qualitative estimation of these parameters which can be practised by everyone in real time. The book presents the vibrations of the Earth viewed as a solid sphere and the vibrations of an elastic half-space. The static deformations of the elastic half-space under the action of point forces are also included. Finally, earthquake correlations, Bath's law and earthquake entropy are discussed. The book is an original monograph of Seismology, intended for the use of the students, researchers and the public who wish to become familiar with the physics and mathematics of the earthquakes. It provides the understanding of the earthquakes and specific knowledge we may have of them.

Earthquake Data in Engineering Seismology

Earthquake Data in Engineering Seismology
Predictive Models, Data Management and Networks

by Sinan Akkar,Polat Gülkan,Torild van Eck

  • Publisher : Springer Science & Business Media
  • Release : 2011-01-03
  • Pages : 276
  • ISBN : 9789400701526
  • Language : En, Es, Fr & De
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This book addresses current activities in strong-motion networks around the globe, covering issues related to designing, maintaining and disseminating information from these arrays. The book is divided into three principal sections. The first section includes recent developments in regional and global ground-motion predictive models. It presents discussions on the similarities and differences of ground motion estimations from these models and their application to design spectra as well as other novel procedures for predicting engineering parameters in seismic regions with sparse data. The second section introduces topics about the particular methodologies being implemented in the recently established global and regional strong-motion databanks in Europe to maintain and disseminate the archived accelerometric data. The final section describes major strong-motion arrays around the world and their historical developments. The last three chapters of this section introduce projects carried out within the context of arrays deployed for seismic risk studies in metropolitan areas. Audience: This timely book will be of particular interest for researchers who use accelerometric data extensively to conduct studies in earthquake engineering and engineering seismology.

Methods and Applications of Signal Processing in Seismic Network Operations

Methods and Applications of Signal Processing in Seismic Network Operations
A Book

by Tetsuo Takanami,Genshiro Kitagawa

  • Publisher : Springer
  • Release : 2014-03-12
  • Pages : 270
  • ISBN : 9783662164679
  • Language : En, Es, Fr & De
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This book deals with various theoretical and practical methods for real-time automatic signal processing in local (and regional) seismic networks and associated software developments, including extraction of small seismic signal from noisy observation by piecewise modeling and self-organizing state space modeling, determination of arrival time of S wave by locally multivariate stationary AT modeling, automatic interpretation of seismic signal by combining cumulativ sum and simulative annealing (CUSUM-SA), AR-filtering for local and teleseismic events, the currently high sensitivity seismic network running in Japan (Hi-net), PC-based computer package for automatic detection and location of earthquakes, real-time automatic seismic data-processing in seismic network running in eastern Sicily (Italy), the SIL (South Iceland Lowland) seismological data acquisition system and routine analysis in Iceland and Sweden.

Methods and Applications of Signal Processing in Seismic Network Operations

Methods and Applications of Signal Processing in Seismic Network Operations
A Book

by Tetsuo Takanami,Genshiro Kitagawa

  • Publisher : Springer
  • Release : 2008-01-03
  • Pages : 270
  • ISBN : 3540479147
  • Language : En, Es, Fr & De
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This book deals with various theoretical and practical methods for real-time automatic signal processing in local (and regional) seismic networks and associated software developments, including extraction of small seismic signal from noisy observation by piecewise modeling and self-organizing state space modeling, determination of arrival time of S wave by locally multivariate stationary AT modeling, automatic interpretation of seismic signal by combining cumulativ sum and simulative annealing (CUSUM-SA), AR-filtering for local and teleseismic events, the currently high sensitivity seismic network running in Japan (Hi-net), PC-based computer package for automatic detection and location of earthquakes, real-time automatic seismic data-processing in seismic network running in eastern Sicily (Italy), the SIL (South Iceland Lowland) seismological data acquisition system and routine analysis in Iceland and Sweden.

The Prospect of Using Three-Dimensional Earth Models To Improve Nuclear Explosion Monitoring and Ground Motion Hazard Assessment

The Prospect of Using Three-Dimensional Earth Models To Improve Nuclear Explosion Monitoring and Ground Motion Hazard Assessment
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2008
  • Pages : 18
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The last ten years have brought rapid growth in the development and use of three-dimensional (3D) seismic models of Earth structure at crustal, regional and global scales. In order to explore the potential for 3D seismic models to contribute to important societal applications, Lawrence Livermore National Laboratory (LLNL) hosted a 'Workshop on Multi-Resolution 3D Earth Models to Predict Key Observables in Seismic Monitoring and Related Fields' on June 6 and 7, 2007 in Berkeley, California. The workshop brought together academic, government and industry leaders in the research programs developing 3D seismic models and methods for the nuclear explosion monitoring and seismic ground motion hazard communities. The workshop was designed to assess the current state of work in 3D seismology and to discuss a path forward for determining if and how 3D Earth models and techniques can be used to achieve measurable increases in our capabilities for monitoring underground nuclear explosions and characterizing seismic ground motion hazards. This paper highlights some of the presentations, issues, and discussions at the workshop and proposes two specific paths by which to begin quantifying the potential contribution of progressively refined 3D seismic models in critical applied arenas. Seismic monitoring agencies are tasked with detection, location, and characterization of seismic activity in near real time. In the case of nuclear explosion monitoring or seismic hazard, decisions to further investigate a suspect event or to launch disaster relief efforts may rely heavily on real-time analysis and results. Because these are weighty decisions, monitoring agencies are regularly called upon to meticulously document and justify every aspect of their monitoring system. In order to meet this level of scrutiny and maintain operational robustness requirements, only mature technologies are considered for operational monitoring systems, and operational technology necessarily lags contemporary research. Current monitoring practice is to use relatively simple Earth models that generally afford analytical prediction of seismic observables (see Examples of Current Monitoring Practice below). Empirical relationships or corrections to predictions are often used to account for unmodeled phenomena, such as the generation of S-waves from explosions or the effect of 3-dimensional Earth structure on wave propagation. This approach produces fast and accurate predictions in areas where empirical observations are available. However, accuracy may diminish away from empirical data. Further, much of the physics is wrapped into an empirical relationship or correction, which limits the ability to fully understand the physical processes underlying the seismic observation. Every generation of seismology researchers works toward quantitative results, with leaders who are active at or near the forefront of what has been computationally possible. While recognizing that only a 3-dimensional model can capture the full physics of seismic wave generation and propagation in the Earth, computational seismology has, until recently, been limited to simplifying model parameterizations (e.g. 1D Earth models) that lead to efficient algorithms. What is different today is the fact that the largest and fastest machines are at last capable of evaluating the effects of generalized 3D Earth structure, at levels of detail that improve significantly over past efforts, with potentially wide application. Advances in numerical methods to compute travel times and complete seismograms for 3D models are enabling new ways to interpret available data. This includes algorithms such as the Fast Marching Method (Rawlison and Sambridge, 2004) for travel time calculations and full waveform methods such as the spectral element method (SEM; Komatitsch et al., 2002, Tromp et al., 2005), higher order Galerkin methods (Kaser and Dumbser, 2006; Dumbser and Kaser, 2006) and advances in more traditional Cartesian finite difference methods (e.g. Pitarka, 1999; Nilsson et al., 2007). The ability to compute seismic observables using a 3D model is only half of the challenge; models must be developed that accurately represent true Earth structure. Indeed, advances in seismic imaging have followed improvements in 3D computing capability (e.g. Tromp et al., 2005; Rawlinson and Urvoy, 2006). Advances in seismic imaging methods have been fueled in part by theoretical developments and the introduction of novel approaches for combining different seismological observables, both of which can increase the sensitivity of observations to Earth structure. Examples of such developments are finite-frequency sensitivity kernels for body-wave tomography (e.g. Marquering et al., 1998; Montelli et al., 2004) and joint inversion of receiver functions and surface wave group velocities (e.g. Julia et al., 2000).

Real Time Monitoring of Radon as an Earthquake Precursor in Iceland

Real Time Monitoring of Radon as an Earthquake Precursor in Iceland
A Book

by Bragi Árnason

  • Publisher : Unknown Publisher
  • Release : 1981
  • Pages : 40
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Geotechnical Hazards

Geotechnical Hazards
Nature, Assessment, and Mitigation

by Rolando P. Orense

  • Publisher : Unknown Publisher
  • Release : 2003
  • Pages : 510
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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IRIS Annual Report

IRIS Annual Report
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2003
  • Pages : 329
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Western Great Basin Seismic Network Operations

Western Great Basin Seismic Network Operations
A Book

by Glenn P. Biasi

  • Publisher : Unknown Publisher
  • Release : 2002
  • Pages : 12
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Real-Time Earthquake Tracking and Localisation

Real-Time Earthquake Tracking and Localisation
A Formulation for Elements in Earthquake Early Warning Systems (Eews)

by George R. Daglish,Iurii P. Sizov

  • Publisher : AuthorHouse
  • Release : 2018-09-30
  • Pages : 242
  • ISBN : 1546296816
  • Language : En, Es, Fr & De
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After the great tsunami of 2004 and the earthquake in Sichuan, China, in 2008, two big thinkers knew they must try to prevent the damage inflicted by surprise earthquakes. George R. Daglish and Iurii P. Sizov teamed up to create an experimental seismic software system that contains application areas for inclusion in an earthquake early warning software structure. In this book, they highlight the work they’ve done thus far. The algorithms can be grouped into several main types: planar earth calculations to determine epicentres; calculations over a spherical earth model to determine epicentres; rapid tabular scans to determine epicentres and hypocentres concurrently, using either a spherical or a spheroidal earth geometry directly; and hypocentre scans using spheroidal earth geometry. The authors also describe the testing of all members of the grouping, using real earthquake data. They assess the timing and accuracy of each against received and current results taken from the Incorporated Research Institutions for Seismology archive. If the world doesn’t take concerted action to predict and track earthquakes, the consequences will be unthinkable, which is why we must work toward Real-Time Earthquake Tracking and Localisation.

Perspectives on European Earthquake Engineering and Seismology

Perspectives on European Earthquake Engineering and Seismology
A Book

by Atilla Ansal

  • Publisher : Springer
  • Release : 2014-09-01
  • Pages : 650
  • ISBN : 3319071181
  • Language : En, Es, Fr & De
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This book collects 5 keynote and 15 topic lectures presented at the 2nd European Conference on Earthquake Engineering and Seismology (2ECEES), held in Istanbul, Turkey, from August 24 to 29, 2014. The conference was organized by the Turkish Earthquake Foundation - Earthquake Engineering Committee and Prime Ministry, Disaster and Emergency Management Presidency under the auspices of the European Association for Earthquake Engineering (EAEE) and European Seismological Commission (ESC). The book’s twenty state-of-the-art papers were written by the most prominent researchers in Europe and address a comprehensive collection of topics on earthquake engineering, as well as interdisciplinary subjects such as engineering seismology and seismic risk assessment and management. Further topics include engineering seismology, geotechnical earthquake engineering, seismic performance of buildings, earthquake-resistant engineering structures, new techniques and technologies and managing risk in seismic regions. The book also presents the Third Ambraseys Distinguished Award Lecture given by Prof. Robin Spence in honor of Prof. Nicholas N. Ambraseys. The aim of this work is to present the state-of-the art and latest practices in the fields of earthquake engineering and seismology, with Europe’s most respected researchers addressing recent and ongoing developments while also proposing innovative avenues for future research and development. Given its cutting-edge content and broad spectrum of topics, the book offers a unique reference guide for researchers in these fields. Audience: This book is of interest to civil engineers in the fields of geotechnical and structural earthquake engineering; scientists and researchers in the fields of seismology, geology and geophysics. Not only scientists, engineers and students, but also those interested in earthquake hazard assessment and mitigation will find in this book the most recent advances.