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  • 1
    Monograph available for loan
    Monograph available for loan
    Dordrecht [u.a.] : Kluwer
    Associated volumes
    Call number: 8/M 97.0092 ; 8/M 96.0457 ; M 97.0073
    In: Advances in natural and technological hazards research
    Type of Medium: Monograph available for loan
    Pages: ix, 287 S.
    ISBN: 0792340086
    Series Statement: Advances in natural and technological hazards research 6
    Classification:
    Seismology
    Language: English
    Location: Reading room
    Location: Reading room
    Location: Upper compact magazine
    Branch Library: GFZ Library
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 2
    Call number: M 00.0110
    In: General Assembly of the European Seismological Commission
    Series Statement: ... general assembly of the European Seismological Commission 23
    Classification:
    Seismology
    Branch Library: GFZ Library
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 109 (1973), S. 1752-1761 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The spectral amplitude fields of seismic waves produced by directed (non-spherical) and undirected (spherical) explosive sources are described. The following four cases were investigated: a spherical source located at the bottom of a borehole, a spherical, a hemi-spherical, and a conical source placed at the wall of a trench. The geophones measuring theX, Y andZ components of the seismic waves produced were situated on the Earth's surface within a circle round the epicentre of each source. The records were Fourier analyzed and amplitude spectra were used to establish spectral amplitude fields of these components. Amplitude and frequency variations of the seismic wave patterns are discussed in the paper.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 113 (1975), S. 683-693 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The earthquake activity in Europe is investigated in the paper using return periods of earthquakes in fifteen European seismic regions. The variations of return periods are compared with the fundamental structure of Europe and with the observed migrations of epicentres. The probabilities of occurrence of earthquakes and their return periods are obtained by applying the theory of largest values to the data in Kárník'sCatalogue of European Earthquakes 1901–1967.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 119 (1981), S. 1077-1092 
    ISSN: 1420-9136
    Keywords: Seismic hazard estimation ; Bohemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The contribution reviews basic concepts of earthquake hazard assessment for sites of nuclear power plants. Taking into account the delineation of earthquake source regions, intensity-frequency relations, upper intensity thresholdsI max and intensity attenuation curves, we determine the seismic hazard for a site in south Bohemia and calculated the quantities defining the seismic hazard, i.e. return period in years, probability of exceedance for different intensities and different periods of interest. The adopted procedure has some limitations due to the poor definition of seismogenic zones (boundaries,N(I),I max) and lack of strong motion observations in Central Europe.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 114 (1976), S. 109-117 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary In investigating the dynamic processes of the generation of stress waves in the nearest zone of seismic sources, questions concerned with their frequency pattern are very important. In this paper the frequency content of stress waves is expressed by the relative width of their amplitude spectrum. Measurements of stress waves close to a spherical explosive source in gravel-sandy soil, in loess, and in limestone have been realized earlier. This paper discusses the dependence of the frequency content of stress waves on the physical parameters of the medium, on the size of the charge and on the distance from the source.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 88 (1971), S. 111-120 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The travel-time curves of characteristic moments of stress wave patterns were investigated. The arrival time of the onset of stress wavet 0, of the maximum amplitudet 1 and of the moment terminating the pressure part (the first half-wave) of this wavet 2 were taken to be representative. These travel-time curves were used to determine the velocities of propagation of these moments (V 0,V 1 andV 2) as functions of the distance from the source. According to their variations it is possible to appoint the size of the cavity created by the explosion and to determine the distance at which the ‘elastic source surface’ of stress waves is to be found. The radius of the cavity is given by 1.5 times the distance at whichV 1 separates fromV 0. The ‘elastic source surface’ of stress waves is defined by the distance from whichV 0 is constant and at whichV 1 andV 2 have minimum values. These two distances determine the points at which the character of the stress wave pattern changes: from shock wave in gases, through shock wave in a solid medium to a seismic wave.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 90 (1971), S. 61-69 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The dependences of the values of coefficients of attenuation of the maximum amplitude and of the spectral amplitude were determined from stress wave records obtained from measurements in gravel sandy soil. These dependences were expressed mathematically and their interrelations are discussed.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 109 (1973), S. 1743-1751 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The source functions of the stress wave patterns at an elastic source of these waves are analysed. The comparison of the properties of the functions with the stress wave records obtained earlier showed that their parameters do not satisfy, to a greater or lesser extent, the stress wave patterns in the neighbourhood of explosive sources. For this reason a new source function (1) was defined, which fully approximates the observed stress wave patterns in gravel sandy soil. The coefficientsP 0, α, β, ω and δ were experimentally determined as functions of the distance from the source, its size and the radius of the elastic source in the medium considered. The properties of source function (1) are demonstrated on an example.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Natural hazards 1 (1988), S. 309-310 
    ISSN: 1573-0840
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Type of Medium: Electronic Resource
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