Earthquake Source Asymmetry, Structural Media and Rotation Effects

1. Front Matter

   Pages I-XXIII

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2. Macroseismic Rotation Effects and Micromotions

   1. Front Matter

      Pages 1-1

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   2. Development of Earthquake Rotational Effect Study

      • Jan T. Kozák

      Pages 3-10

   3. Sources of Rotation and Twist Motions

      • Roman Teisseyre, Jan T. Kozák

      Pages 11-23

   4. Some Examples of Rotation Effects: the Tulbagh Earthquake, South Africa

      • Gerhard Graham, Andrzej Kijko

      Pages 25-28

3. Theory of Continua and Fields of Defects

   1. Front Matter

      Pages 29-29

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   2. Deviations from Symmetry and Elasticity: Asymmetric Continuum Mechanics

      • Roman Teisseyre, Wojciech Boratyński

      Pages 31-41

   3. Degenerated Asymmetric Continuum Theory

      • Roman Teisseyre, Mariusz Białecki, Marek Górski

      Pages 43-55

   4. Continuum with Rotation Nuclei and Defects: Dislocation and Disclination Densities

      • Wojciech Boratyński, Roman Teisseyre

      Pages 57-66

   5. Towards a Discrete Theory of Defects

      • Mariusz Białecki

      Pages 67-76

   6. Fault Dynamics and Related Radiation

      • Wojciech Boratyński, Roman Teisseyre

      Pages 77-89

   7. A Review on Friction

      • Panayiotis Varotsos, Mary Lazaridou

      Pages 91-111

   8. Soliton Physics

      • Eugeniusz Majewski

      Pages 113-128

4. Rotation Motions, Seismic Source Models, and Asymmetry of Fracture

   1. Front Matter

      Pages 129-129

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   2. Rotational Motions Excited by Earthquakes

      • Minoru Takeo

      Pages 131-156

   3. Ground Rotational Motions Recorded in Near-Source Region of Earthquakes

      • Minoru Takeo

      Pages 157-167

   4. Fracture-Band Geometry and Rotation Energy Release

      • Roman Teisseyre, Marek Górski, Krzysztof P. Teisseyre

      Pages 169-183

   5. Rotation Motions: Recording and Analysis

      • Krzysztof P. Teisseyre, Jerzy Suchcicki

      Pages 185-197

   6. Glacier Motion: Seismic Events and Rotation/Tilt Phenomena

      • Marek Górski, Krzysztof P. Teisseyre

      Pages 199-215

   7. Rotational Energy and Angular Momentum of Earthquakes

      • Eugeniusz Majewski

      Pages 217-225

When thinking, at the beginning of the new century, on our horizons in seismology, we might return to the old question related to the seismic ro- tion effects and waves. Seismology, with its spectacular achievements instrumentation, data processing, seismic tomography and source process theories – remains practically confined to linear ideal elasticity (isotropic or anisotropic). Numerous renown seismologists have tried to go beyond this horizon. As concerns rotation waves, such attempts were inspired by numerous macroscopic observations pointing out the rotation effects, often observed on the ground surface. However, this problem has been app- ently closed by Mallet in 1862, who gave the following explanation: ro- tions of a body on the surface are due to a sequence of impacts of different seismic phases emerging under different angles. Later on, in 1937, I- mura underlined an influence of different inertia moments of an inflicted body. Thus, the surface rotation effects – rotation of some objects on the ground surface – were explained as being caused by the consecutive inc- nations and recovery of these objects to the vertical, when hit by the in- dent seismic body or surface waves. The final position of the object could become slightly twisted in comparison to its former place; the differences between the inertia tensor moments of the object and/or its attachment (as related to friction resistance of binding) to the ground surface play an - portant role.

• Deformation
• Earthquakes
• Rotation
• Rotational Ground Motions
• Seismic Rotational Waves
• Structured Media
• earthquake
• fracture
• seismic
• seismology
• seismometer
• simulation

• Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland

  Roman Teisseyre, Eugeniusz Majewski

• Earthquake Research Institute, University of Tokyo, Tokyo, Japan

  Minoru Takeo

Policies and ethics