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  • Physical properties of rocks
  • American Geophysical Union  (2)
  • American Association for the Advancement of Science
  • 2005-2009  (1)
  • 1990-1994  (1)
  • 1980-1984
  • 2007  (1)
  • 1994  (1)
  • 1983
  • 1980
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  • 2005-2009  (1)
  • 1990-1994  (1)
  • 1980-1984
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  • 2007  (1)
  • 1994  (1)
  • 1983
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  • 1
    Publication Date: 2017-04-04
    Description: High-resolution 3-D P and S-wave velocity models of a central sector of the Apennines (Central Italy) are computed by inverting first arrival times from an aftershock sequence (September–December, 1997) following the Mw 5.7 and Mw 6.0 Umbria-Marche earthquakes that occurred on September 26, 1997. The high quality of the data set, especially for the S-wave, allows us to compute 3-D variations in Vp, Vp/Vs and Vp · Vs. The anomalies can be interpreted as lateral changes in rock type and fracturing, which control fluid diffusion and variation in pore pressure. This is in agreement with a poro-elastic view that can be inferred from the spatio-temporal evolution of the seismic sequence.
    Description: Published
    Description: 61-4
    Description: open
    Keywords: Physical properties of rocks ; Seismicity and seismotectonics ; 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Format: 246845 bytes
    Format: application/pdf
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  • 2
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    American Geophysical Union
    In:  Professional Paper, Nonlinear Dynamics and Predictability of Geophysical Phenomena, Washington, American Geophysical Union, vol. 65, no. 16, pp. 15-35, (ISBN: 3-540-23712-7)
    Publication Date: 1994
    Keywords: Non-linear effects ; Friction ; Fracture ; Physical properties of rocks
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