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  • 51. Solakov, D.
    et al.
    Simeonova, S.
    Dineva, Savka
    Glavcheva, R.
    Biotev, E.
    Christova, Ts
    Babachkova, B.
    Donkova, K.
    Aleksandrova, I.
    Katalog zemletryaseniy s magnitudoy M> or =3.0, kotoryye sluchilis' na territorii Bolgarii i blizhayshikh zemel' za period 1981-19901993Inngår i: Balgarsko Geofizicno Spisanie, Vol. 19, nr 4, s. 76-82Artikkel i tidsskrift (Fagfellevurdert)
  • 52. Simeonova, S.
    et al.
    Glavcheva, R.
    Solakov, D.
    Dineva, Savka
    Botev, Ye
    Khristova, Ts
    Babachkova, B.
    Donkova, K.
    Aleksandrova, I.
    Seysmichnost' za period 1981-19901993Inngår i: Balgarsko Geofizicno Spisanie, Vol. 19, nr 4, s. 108-118Artikkel i tidsskrift (Fagfellevurdert)
  • 53. Solakov, D.
    et al.
    Khristoskov, L.
    Simeonova, S.
    Khristova, Ts
    Babachkova, B.
    Botev, Ye
    Dimitrov, B.
    Dineva, Savka
    Dobrev, Ch
    Donkova, K.
    Petrov, L.
    Rezultaty ot yedniy eksperiment vyrchy opredelyane na osnovnite zemetryasyy parametry chrez registratsite na NOTSSI1992Inngår i: Balgarsko Geofizicno Spisanie, Vol. 18, nr 1, s. 22-29Artikkel i tidsskrift (Fagfellevurdert)
  • 54.
    Michailov, D.
    et al.
    Geophysical Institute, Bulgarian Academy of Sciences.
    Glavcheva, R.
    Geophysical Institute, Bulgarian Academy of Sciences.
    Dineva, Savka
    Elenkov, S.
    Geophysical Institute, Bulgarian Academy of Sciences.
    Konstantinov, B.
    Laboratory of Geotecnics of BAS.
    Influence of local geological conditions on the macroseismic effects in the town of Strazhitza1990Inngår i: Natural Hazards, ISSN 0921-030X, E-ISSN 1573-0840, s. 153-160Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Damage caused by the earthquake of 7 December 1986 (M = 5.7) and its aftershocks in low-storey residential buildings in the town of Strazhitza, Bulgaria, situated in the epicentral zone are systematized. A scale of damages is compiled for two types of buildings which is coordinated with the MSK-64 scale. The territorial distribution of the seismic intensity is compared with the results of the detailed engineering-geological study. A correlation between the Quarternary deposit thickness and the observed seismic intensity is obtained

  • 55. Dineva, Savka
    Seysmicheskiy moment sil'nykh zemletryaseniy Karpato-Balkanskogo regiona (1969-1981 gg.)1989Inngår i: Balgarsko Geofizicno Spisanie, Vol. 15, nr 2, s. 67-76Artikkel i tidsskrift (Fagfellevurdert)
  • 56. Kristoskov, L.
    et al.
    Glavcheva, R.
    Georgiev, Ts
    Khristova, Ts
    Donkova, K.H.
    Simeonova, S.
    Solakov, D.
    Dineva, Savka
    Mikhajlov, D.
    Dimitrov, B.
    Spasov, E.
    Sejzmologichna kharakteristika na prostranstvoto svyrzano sys zemetrysnite serii prez 1986 g. v Gornooryakhovskata zona1988Inngår i: Balgarsko Geofizicno Spisanie, Vol. 14, nr 2, s. 73-89Artikkel i tidsskrift (Fagfellevurdert)
  • 57.
    Vaněk, J.
    et al.
    Geophysical Institute, Czechoslovak Academy of Sciences.
    Kondorskaya, N.V.
    Institute of Physics of the Earth, Academy of Sciences, the U.S.S.R.
    Fedorova, I.V.
    Institute of Physics of the Earth, Academy of Sciences, the U.S.S.R.
    Christoskov, L.
    Geophysical Institute, Bulgarian Academy of Sciences.
    Zakharova, A.I.
    Institute of Physics of the Earth, Academy of Sciences, the U.S.S.R.
    Dineva, Savka
    Nosova, O.V.
    Institute of Physics of the Earth, Academy of Sciences, the U.S.S.R.
    Kireev, I.A.
    Institute of Physics of the Earth, Academy of Sciences, the U.S.S.R.
    Chepkunas, L.S.
    Institute of Physics of the Earth, Academy of Sciences, the U.S.S.R.
    Determination of the homogeneous magnitude system magnitudes in seismological practice1985Inngår i: Tectonophysics, ISSN 0040-1951, E-ISSN 1879-3266, Vol. 118, nr 3-4, s. 359-363Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Routine determination of network magnitudes by means of the Eurasian homogeneous magnitude system (HMS) is described and tested on a selection of recent shallow earthquakes. The HMS earthquake magnitudes appear to be more accurate and more reliable than the conventional earthquake magnitudes used in the present seismological practice. A preliminary investigation of correlations between magnitudes determined from different wave types shows a possible dependence of the correlation on the type of focal mechanism of earthquakes

  • 58. Dineva, Savka
    et al.
    Sokerova, D.G.
    Observed isoseismal fields in the Velingrad seismic zone and their models1982Inngår i: Balgarsko Geofizicno Spisanie, Vol. 8, nr 3, s. 84-97Artikkel i tidsskrift (Fagfellevurdert)
  • 59. Dineva, Savka
    et al.
    Sokerova, D.
    Izsledvane na prostranstveno-vremennite energetichni kharakteristiki na poreditsata Velingradski zemetreseniya (noyemvri 1977-april 1978 god.)1979Inngår i: Balgarsko Geofizicno Spisanie, Vol. 5, nr 3, s. 53-64Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Earthquakes manifested in a small volume of the earth's crust are analysed, presuming that the orientation of the rupture disturbances is conditioned by the local neotectonic conditions. A relation is sought between the seismic manifestations and the modern crushing structures in the earthquake region. In this very case, the earthquakes in the Velingrad district (Bulgaria) are analysed, which began with an earthquake of the 5,3 magnitude and a maximum intensity of the VII-VIII degree by the Medvedev-Schponheuer- Karnik scale and the followed 504 earthquakes for a period of 179 days. From the data obtained, a presence of a complex ridge-like structure can be presumed, which develops in a valley depression on the background of a vault block rising in the limits of the granite layer of the earth crust, to a 15 km depth. The frequency of the earthquakes is obtained as a function of the difference (tsg - tpg) and the greatest earthquake frequency is shown to be in the interval of 0,8-1,4 sec and the greatest difference of times corresponds to a 20 km hypocentral distance

  • 60.
    Nordström, Emilia
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Nordlund, Erling
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Dineva, Savka
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Zhang, Ping
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    A methodology for a rock mechanic seismic damage hazard analysis in seismically active minesManuskript (preprint) (Annet vitenskapelig)
  • 61.
    Warema, Senzia
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
    Nordström, Emilia
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Nordlund, Erling
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Dineva, Savka
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Zhang, Ping
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Yi, Changping
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Analysis of the rock mass support damages for seismic damaging events in Kiirunavaara mineManuskript (preprint) (Annet vitenskapelig)
  • 62.
    Nordström, Emilia
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Nordlund, Erling
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Dineva, Savka
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Andersson, Ulf B.
    Warema, Senzia
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser.
    Zhang, Ping
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Qualitative and quantitative analysis of damages caused by seismic events in Kiirunavaara mine, SwedenManuskript (preprint) (Annet vitenskapelig)
  • 63.
    Agostinetti, Nicola Piana
    et al.
    Department of Earth and Environmental Sciences, Universitadi Milano Bicocca, Piazza della Scienza 1, I-20126 Milano, Italy; Department of Geology, University of Vienna, Vienna, Austria.
    Malinverno, Alberto
    Lamont-Doherty Earth Observatory, Columbia University, NY, USA.
    Bodin, Thomas
    Univ Lyon, Univ Lyon 1, ENSL, CNRS, LGL-TPE, F-69622, Villeurbanne, France.
    Dahner, Christina
    Luossavaara-Kiirunavaara AB, Kiruna, Sweden.
    Dineva, Savka
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Luossavaara-Kiirunavaara AB, Kiruna, Sweden.
    Kissling, Eduard
    Department of Earth Sciences, ETH Zurich, Switzerland.
    Weighing geophysical data with trans-dimensional algorithms: An earthquake location case studyManuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    In geophysical inverse problems, the distribution of physical properties in an Earth model is inferred from a set of measured data. A necessary step is to select data that are best suited to the problem at hand. This step is performed ahead of solving the inverse problem, generally on the basis of expert knowledge. However, expert-opinion can introduce bias based on pre-conceptions. Here we apply a trans-dimensional algorithm to automatically weigh data on the basis of how consistent they are with the fundamental assumptions made to solve the inverse problem. We demonstrate this approach by inverting arrival times for the location of a seismic source in an elastic half space, under the assumptions of a point source and constant velocities. The key advantage is that the data do no longer need to be selected by an expert, but they are assigned varying weights during the inversion procedure.

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