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Nishimura, Eiichi; Kamitsuki, Akira; Kishimoto, Yoshimichi (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article

Classified by OpenAIRE into

arxiv: Physics::Geophysics
Instead of the time-distance graph, the P-S diagram is effectively employed to estimate the value of Poisson's ratio in the earth's crust. This diagram is advantageous, especially to detect its local anomaly or distribution. The obtained results are as follows: 1 Applying this method to eighteen earthquakes occurring in south-western Japan, the domain with anomalously large Poisson's ratio was found in the Kyushu district. This hints to the possibility of an existence of a local magmatic reservoir. 2 The azimuthal distribution of the crustal Poisson's ratio in case of earthquake occurrence was investigated and it was found to be considerably different in the push- and pull-zone of initial seismic motion. This may be related to the state of stress accumulation causing the earthquake occurrence.DOI: 10.1111/j.2153-3490.1960.tb01306.x
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • P O I S S O N ' S R A T I O I N E A R T H ' S C R U S T GUTENBERBG.,, 1955: Wave Velocities in the Earth's Crust, Crust of the Earth. Ceol. SOC.Amer. Special Paper, 62, pp. 1-34.
    • KAMITSUKAI,., 1959: O n Local Character of Poisson's Ratio in the Earth's Crust. Mem. Coll. Science, Kyofo Univ., Ser. A, 29, pp. 163-186.
    • KAMITSUKAI,., 1959:O n Azimuthal Distribution of the Crustal Poisson's Ratio in Case of Earthquake Occurrence (Preliminaries). M e m . Coll. Science, K y o f o U n i v . , Ser. A, 29, pp. 213-220.
    • NISHIMURE.A,,1950:On Earth Tides, Time Variation of the Elasticity of the Earth. Trans. Amer. Geophys. Union, 31, PP. 357-376.
    • NISHIMURAE,., and KISHIMOTYO.,,1956:On the Local Structural Character of the Earth's Crust. Tellus, 8, PP. 32-334.
    • YOSHIYAMRA., ,1957:The ratio of the Velocity of P and S waves. Bull. Earfhq. Res. Inst., 35. pp. 627440.
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