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  • 1
    Electronic Resource
    Electronic Resource
    The seismic disturbance on 1986 August 1 near Novaya Zemlya: a source of concern? (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 98 (1989), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: On 1986 August 1 a small seismic disturbance occurred to the east of a Soviet nuclear test site at Novaya Zemlya. Reported attempts to identify the nature of the source using only short-period seismological data recorded at regional distances were unsuccessful. However, by using teleseismic P-wave data it is possible to identify the source as an earthquake which occurred within the crust at a depth of 24 km. The source is shown to have a double-couple mechanism with a well-constrained fault-plane solution. The identification as an earthquake is supported by the mb: Ms evidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1989.tb02290.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Short period teleseismic S waves (1975)
    [s.l.] : Nature Publishing Group
    Nature 253 (1975), S. 181-182 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] S waves are useful because they are more sensitive to changes in anelasticity than P waves. The attenuation of body waves at angular frequency co is given by exp(- oof*/2) where t* = 77Qav. Tis the travel time and £〉av the average quality factor Q, for the raypath and the particular ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/253181a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Seismic source in East Kazakhstan (1974)
    [s.l.] : Nature Publishing Group
    Nature 248 (1974), S. 743-745 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Figure 1 shows the P seismograms (b, e, h] for the event, from Yellowknife, Canada (YKA), Warramunga, Australia (WRA) and Gauribidanur, India (GBA). The YKA and WRA seismograms show two arrivals 7.5 s apart; at WRA the second arrival seems to have reversed polarity relative to P, but the YKA record ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/248743a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    How and Why to Record Broad Band Seismic Signals (1972)
    [s.l.] : Nature Publishing Group
    Nature 239 (1972), S. 154-155 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Kirnos seismograph is an electromagnetic seismometer with a natural frequency (/0) of 0.04 Hz- and damping factor (n) of 0.5 loosely coupled to a heavily damped galvanometer Oz=8.0, /0 = 0.833 Hz). We obtain the Kirnos response by electronically shaping the output of a Geotech S-ll seismometer ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/239154a0
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  • 5
    Electronic Resource
    Electronic Resource
    Surface Waves from Underground Explosions (1971)
    [s.l.] : Nature Publishing Group
    Nature 234 (1971), S. 8-9 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SEVERAL authors1,2 have published data on the surface wave magnitude (M8) and yield (Y) for underground explosions at test sites in North America. Fig. 1 shows the dependence of Ms on yield for all test sites for which we could obtain explosion yield data. The details of the explosions are given in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/234008a0
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Is the velocity of P n an indicator of Q α ? (1976)
    [s.l.] : Nature Publishing Group
    Nature 264 (1976), S. 531-531 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The hypothesis has important consequences for the measurement of magnitude (mb) and the proposal made by the United States and the Soviet Union to limit the size of their nuclear weapon tests stimulated further investigations of the idea. There is not an obvious way of doing so because ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/264531a0
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  • 7
    Electronic Resource
    Electronic Resource
    Recognising simulated earthquakes (1976)
    [s.l.] : Nature Publishing Group
    Nature 259 (1976), S. 378-380 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Typical microseismic noise spectrum (a), (maximum, 10 um) superimposed on the broad-band (/〉) and the LRSM short period (c) seismograph response. The LRSM response peaks here at an amplification of 30,000 but may be operated at amplifications of up to 300,000. The broad band rarely ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/259378a0
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  • 8
    Electronic Resource
    Electronic Resource
    Rayleigh wave magnitude scaleM s (1973)
    Springer
    Pure and applied geophysics 103 (1973), S. 406-414 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary TheM s Rayleigh wave magnitude formula is revised for purposes of eliminating the variable effects of near distances and propagation pats on the values computed from standard long period seismograms. The improved formulation employs a revised distance correction function and period dependent path correction that normalisesM s to large teleseismic distance, 20 second values. The method for computing the path corrections is described. The magnitude scale presented here givesM s values which are within ±0.1 magnitude units of the Gutenberg and Prague magnitude formulae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876419
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  • 9
    Electronic Resource
    Electronic Resource
    Putting nuclear-test monitoring to the test (1999)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 398 (1999), S. 474-475 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] On the 22 August 1998, 0.1 kilotonnes of conventional explosives was fired underground at the nuclear test site of the former Soviet Union at Degelen Mountain in eastern Kazakhstan. This explosion, which we refer to as K980822, was carried out by the Republic of Kazakhstan, in cooperation with ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/19000
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  • 10
    Electronic Resource
    Electronic Resource
    Two Recent British Earthquakes recorded at the U.K. Atomic Energy Authority Seismometer Array at Eskdalemuir (1964)
    [s.l.] : Nature Publishing Group
    Nature 201 (1964), S. 484-485 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since the construction of the station, the concept of a seismic monitoring and detection system has radically changed. From the requirement of a network of stations spaced some hundreds of kilometres apart, the emphasis now is on a smaller number of low-noise stations working at ranges of several ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/201484a0
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