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  • 1
    Journal cover
    Unknown
    Wiley-Blackwell - STM | American Geophysical Union (AGU)
    Online: 1.1982 –
    Print: 4.1985 – 24.2005 (Location: A17, Kompaktmagazin, 67/3-5)
    Publisher: Wiley-Blackwell - STM , American Geophysical Union (AGU)
    Corporation: American Geophysical Union, AGU 〈Washington, DC〉 , European Geosciences Union, EGU
    Description: Tectonics contains original scientific contributions in analytical, synthetic, and integrative tectonics. Papers are restricted to the structure and evolution of the terrestrial lithosphere with dominant emphasis on the continents.
    Print ISSN: 0278-7407
    Electronic ISSN: 1944-9194
    Topics: Geosciences
    Keywords: Seismologie ; Tektonik ; Plattentektonik ; Lithosphäre ; Kontinente ; seismology ; tectonics; plate tectonics ; lithosphere ; continents
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  • 2
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    Springer
    Online: 1.1997 –
    Print: 1.1997 – 11.2007 (Location: A17, Kompaktmagazin, 43/5-6)
    Publisher: Springer
    Description: The Journal of Seismology is an international journal specializing in all observational and theoretical aspects related to earthquake occurrence. The editors approach Seismology as a broad interdisciplinary effort, with well balanced observational, modeling and applied aspects. Topics include seismotectonics, seismicity, historical seismicity, seismic source physics, strong ground motion studies, seismic hazard or risk, engineering seismology, physics of fault systems, triggered and induced seismicity, mining seismology, volcano seismology, earthquake prediction, structural investigations ranging from local to regional and global studies with a particular focus on passive experiments. The journal publishes short communications as well as extended review papers.
    Print ISSN: 1383-4649
    Electronic ISSN: 1573-157X
    Topics: Geosciences , Physics
    Keywords: seismology ; earthquake ; seismic hazard ; seismic risk ; seismicity ; mining seismology ; volcano seismology ; earthquake prediction
    Acronym: JOSE
    Abbreviation: J Seismol
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  • 3
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    Wiley-Blackwell - STM | American Geophysical Union (AGU)
    Online: 1(1).1986 –
    Formerly as: Paleoceanography  (1986–2017)
    Publisher: Wiley-Blackwell - STM , American Geophysical Union (AGU)
    Corporation: American Geophysical Union, AGU
    Print ISSN: 0883-8305 , 2572-4517
    Electronic ISSN: 1944-9186 , 2572-4525
    Topics: Geosciences
    Keywords: Paläontologie ; Ozeanographie ; Klimatologie
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  • 4
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    Royal Meteorological Society | Wiley-Blackwell - STM
    Online: 52.1997 –
    Online: 52.1997 –
    Print: 1.1946 – 45.1990 (Location: A62, Keller, 6/4)
    Publisher: Royal Meteorological Society , Wiley-Blackwell - STM
    Corporation: Royal Meteorological Society, RMS
    Print ISSN: 0043-1656
    Electronic ISSN: 1477-8696
    Topics: Geosciences
    Keywords: Meteorologie ; Klimatologie
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  • 5
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    Wiley-Blackwell - STM | formerly Cambridge University Press
    Online: 1(2).1994 –
    Publisher: Wiley-Blackwell - STM , formerly Cambridge University Press
    Print ISSN: 1350-4827
    Electronic ISSN: 1469-8080
    Topics: Geography , Geosciences , Physics
    Keywords: Angewandte Meteorologie ; Meteorologie ; Klimatologie
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  • 6
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    Wiley-Blackwell - STM
    Online: 4(1).1997 –
    Publisher: Wiley-Blackwell - STM
    Print ISSN: 1350-4827
    Electronic ISSN: 1469-8080
    Topics: Geography , Geosciences , Physics
    Keywords: Angewandte Meteorologie ; Meteorologie ; Klimatologie
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Annals of the Institute of Statistical Mathematics 43 (1991), S. 407-433 
    ISSN: 1572-9052
    Keywords: Locally stationary AR model ; AIC ; Householder transformation ; P wave ; S wave ; arrival time ; seismology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract A computationally efficient procedure was developed for the fitting of many multivariate locally stationary autoregressive models. The details of the Householder method for fitting multivariate autoregressive model and multivariate locally stationary autoregressive model (MLSAR model) are shown. The proposed procedure is quite efficient in both accuracy and computation. The amount of computation is bounded by a multiple of Nm 2 with N being the data length and m the highest model order, and does not depend on the number of models checked. This facilitates the precise estimation of the change point of the AR model. Based on the AICs' of the fitted MLSAR models and Akaike's definition of the likelihood of the models, a method of evaluating the posterior distribution of the change point of the AR model is also presented. The proposed procedure is, in particular, useful for the estimation of the arrival time of the S wave of a microearthquake. To illustrate the usefulness of the proposed procedure, the seismograms of the foreshocks of the 1982 Urakawa-Oki Earthquake were analyzed. These data sets have been registered to AISM Data Library and the readers of this Journal can access to them by the method described in this issue.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1573-0581
    Keywords: seismology ; seafloor ; borehole ; ambient noise
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The Seafloor Borehole Array Seismic System (SEABASS) has been developed to measure the pressure and threedimensional particle velocity of the VLF sound field (2–50 Hz) below the seafloor in the deep ocean. The system consists of four three-component borehole seismometers (with an optional hydrophone). a borehole digitizing unit, and a seafloor control and recording package. The system can be deployed using a wireline re-entry capability from a conventional research vessel in Deep Sea Drilling Project (DSDP) and Ocean Drilling Project (ODP) boreholes. Data from below the seafloor are acquired either onboard the research vessel via coaxial tether or remotely on the seafloor in a self-contained package. If necessary the data module from the seafloor package can be released independently and recovered on the surface. This paper describes the engineering specifications of SEABASS, the tests that were carried out, and preliminary results from an actual deep sea deployment. VLF ambient noise levels beneath the seafloor acquired on the Low Frequency Acoustic-Seismic Experiment (LFASE) are within 20 dB of levels from previous seafloor borehole seismic experiments and from land borehole measurements. The ambient noise observed on LFASE decreases by up to 12 dB in the upper 100 m of the seafloor in a sedimentary environment.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 115 (1977), S. 707-719 
    ISSN: 1420-9136
    Keywords: Long-period body waves ; Angle of incidence ; Crustalp-wave velocities ; NORSAR ; seismology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Using simulated data, it is demonstrated that one may estimate the body wave velocity in the crust by measuring the angle of incidence ofP-waves provided only the very first part of the signal is used. This angle has been measured for a set ofP-waves at the NORSAR long period instrument sites. Combining these observations with measurements of apparent velocities, we find that the data indicates a crust velocity of 6.1±0.4 km/sec. While it is somewhat uncertain to what depth the value is representative, the observations are in obvious disagreement with previous authors who concluded that long periodP-waves were not affected by the earth's crust. Because of difficulties in separating the effects of real velocity variations from measurement errors, the details of the observedP-wave variation across the array are difficult to interpret. The consistent behavior of the data does, however, indicate that variations of approximately 3% must exist in the crustalP-wave velocity across the array.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 132 (1990), S. 583-597 
    ISSN: 1420-9136
    Keywords: Reflection ; seismology ; conservation ; inversion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract We show that the time-dependent wave equation in both one and two spatial dimensions possesses quantities which are globally conserved. We show how these conserved quantities can be used to determine the characteristic impedance, the rock density and the elastic constant of the rock. We also demonstrate that the conserved quantities possess the capability of determining and/or bracketing the unknown component of the direct pressure response, which is required to begin downward continuation algorithms. Further, we demonstrate that the conserved quantities are always available irrespective of the source structure in time. Numerical instability, arising if the “filtering” due to the source structure is too harsh, can then be controlled to a degree by demanding that the conserved quantities be indeed conserved.
    Type of Medium: Electronic Resource
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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 131 (1989), S. 61-76 
    ISSN: 1420-9136
    Keywords: Refraction ; fractal ; raytracing ; scattering ; seismology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The introduction of noise components to a simple crustal velocity model is shown to markedly affect the appearance of synthetic seismograms calculated according to ray theory applied to refraction experiments. Here we simulate noise by a self-similar process with a power spectral density which falls off as inverse wavenumber to a simple power (0–2). The major effect is to destroy the coherency of the arrival branches normally expected from deterministic velocity models; the arrival amplitudes also show large trace-to-trace variations and considerable sensitivity to shot position. Some of these differences can be ascribed to the variety of noise model chosen (i.e., white noise, flicker noise and brown noise). It is argued that there is no clear distinction between coherent noise and geological structure.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Mathematical geology 10 (1978), S. 1-22 
    ISSN: 1573-8868
    Keywords: seismology ; transient signals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract A review is presented of methods for estimating the dispersion law of a plane wave which is observed over time at a set of recorders located in an irregularly spaced array. The wave is represented by a signal, which may be either deterministic or random, plus noise which is represented by a stationary random process. The combination of several sets of observations for the one array and the estimation procedure when more than one signal is present are also discussed. A procedure which may give improved estimates for transient signals is introduced. An application of this procedure to some data and the results of some simulations are presented.
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Computational geosciences 3 (1999), S. 111-134 
    ISSN: 1573-1499
    Keywords: wavelets ; seismology ; feature detection ; phase pickers ; cross‐power matrix ; energy distribution ; 42C15 ; 65G99 ; 86A15 ; 94A12 ; 94A13
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Computer Science
    Notes: Abstract Seismic signals consist of several typically short energy bursts, called phases, exhibiting several patterns in terms of dominant frequency, amplitude and polarisation. We present a fast algorithm to detect the so‐called S‐phase in a three‐component seismic signal. This new approach combines traditional S‐phase detection methods and the discrete wavelet transform.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Springer
    Journal of seismology 3 (1999), S. 409-420 
    ISSN: 1573-157X
    Keywords: 1994 Northridge ; California ; earthquake ; nucleation ; precursor ; seismology ; waveform analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract We examine the initial subevent (ISE) of the M 6.7, 1994 Northridge, California, earthquake in order to discriminate between two end-member rupture initiation models: the ‘preslip’ and ‘cascade’ models. Final earthquake size may be predictable from an ISE's seismic signature in the preslip model but not in the cascade model. In the cascade model ISEs are simply small earthquakes that can be described as purely dynamic ruptures. In this model a large earthquake is triggered by smaller earthquakes; there is no size scaling between triggering and triggered events and a variety of stress transfer mechanisms are possible. Alternatively, in the preslip model, a large earthquake nucleates as an aseismically slipping patch in which the patch dimension grows and scales with the earthquake's ultimate size; the byproduct of this loading process is the ISE. In this model, the duration of the ISE signal scales with the ultimate size of the earthquake, suggesting that nucleation and earthquake size are determined by a more predictable, measurable, and organized process. To distinguish between these two end-member models we use short period seismograms recorded by the Southern California Seismic Network. We address questions regarding the similarity in hypocenter locations and focal mechanisms of the ISE and the mainshock. We also compare the ISE's waveform characteristics to those of small earthquakes and to the beginnings of earthquakes with a range of magnitudes. We find that the focal mechanisms of the ISE and mainshock are indistinguishable, and both events may have nucleated on and ruptured the same fault plane. These results satisfy the requirements for both models and thus do not discriminate between them. However, further tests show the ISE's waveform characteristics are similar to those of typical small earthquakes in the vicinity and more importantly, do not scale with the mainshock magnitude. These results are more consistent with the cascade model.
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    Natural hazards 14 (1996), S. 39-71 
    ISSN: 1573-0840
    Keywords: earthquake ; intensity ; acceleration ; epicenter ; fault ; liquefaction ; slope failures ; Japan ; seismology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract On 17 January 1995, a big earthquake, registering magnitude 7.2 on the Richter scale hit the western part of Japan, claiming 6,048 lives, injuring at least 34 900 people, and destroying properties and infrastructures, causing an estimated damage of between 95 to 140 billion U.S. dollars. This paper gives a detailed description of the disaster and attempts to provide a scientific explanation to the disaster.
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 51 (2000), S. 259-262 
    ISSN: 1572-9893
    Keywords: building design codes ; earthquake engineering ; Earthquake Engineering Research Institute ; Northridge ; Calif. earthquake (1994) ; San Fernando ; Calif. earthquake (1971) ; San Francisco earthquake (1906) ; seismology ; Structural Engineers Association of California
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract Seismologists and earthquake engineers have sought to understand and predict earthquakes and to develop better building designs to withstand them for well over a century. In the United States, the 1906 San Francisco earthquake provided the first real impetus for establishing building design codes and safety standards. Subsequent major California earthquakes in Santa Barbara (1925), Long Beach (1933), San Fernando (1971), Loma Prieta (1989), and Northridge (1994) each led to additional seismological understanding and engineering response in the form of enhanced building design codes. Nonetheless, the process to incorporate good seismic design and mitigation efforts has been slow, and by no means failsafe, especially in the Eastern U.S. where much of the building stock predates more recent design codes, and hence where a major earthquake could collapse large numbers of buildings. Even in the absence of catastrophe, it is still important to guard against a false sense of security.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 51 (2000), S. 255-258 
    ISSN: 1572-9893
    Keywords: California ; culture of prevention ; earthquake engineering ; seismology ; technology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract In the last half of the twentieth century, urban Californians came to expect that engineering solutions would overcome the threat of natural seismic activities. This sanguine attitude is rooted in the rise of urban/industrial society, which resulted in huge capital investments in modern cities, complex infrastructures, and made residents increasingly dependent on centralized services for water, fuel, food, transportation, communication, and shelter. While peril from earthquakes seldom concerned people in the rural/agrarian world, the nature of the modern city enormously heightened the risk of ruinous loss to human life and property from natural disasters. The cataclysmic earthquake that wreaked havoc on San Francisco in 1906 plainly illustrated this, and in its wake engineers and geologists developed a sustained interest in understanding seismic activity and constructing earthquake-safe buildings. The study of earthquakes and aseismic building construction evolved with each new earthquake. Earthquake intensities and ground motions were measured and compared. Fallen and standing structures were studied. Chasing earthquakes became a way of life for some investigators, as they gained confidence that they could make modern cities safe against tremors. Over time a culture of prevention emerged, initially fostered by engineers and geologists, eventually sustained by those who invested in the modern city – capitalists and governing officials – and ultimately embraced by the general public. Thus, Californians became believers in a culture of prevention grounded in societal confidence that people can control the natural world with science and technology.
    Type of Medium: Electronic Resource
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  • 18
    Publication Date: 2022-05-24
    Description: Investigating relationships between macroseismic intensity and strong-motion data requires the existence of these two records for the same seismic event and site. In Italy, this comparison is feasible through the cross-matching of the Italian Macroseismic Database (DBMI) and the Italian Strong-Motion Database (ITACA) which are the most comprehensive sources of both data. However, the two databases lack a direct link which would allow performing joint analysis of macroseismic data points and strong-motion recordings, making the comparison a time consuming job for the researcher. This paper demonstrates the usefulness of cross-database identifiers, and presents their use in a webtool called Rosetta, an initial proof-of-concept that helped testing linking procedures among DBMI and ITACA, and user friendly visual solutions. The development allowed the working group to exchange expertise on their respective database structures and workflows, laying the groundwork for a consistent, low-maintenance, and durable solution that will be easily updatable each time a new version of DBMI or ITACA will be released.
    Description: Italian Department of Civil Protection to the project INGV-DPC S2-2014 “Constraining Observations into Seismic Hazard”
    Description: Published
    Description: 2429–2443
    Description: 3T. Storia Sismica
    Description: 4T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Description: 4IT. Banche dati
    Description: JCR Journal
    Keywords: seismology ; macroseismic intensity ; strong-motion ; stations ; historical earthquakes ; database ; identifiers ; 04.06. Seismology ; 05.02. Data dissemination
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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