Contents

• List of papers
• Contents
• A note on notation
• Introduction
• The Stress Tensor
  • Properties of the stress tensor
  • Stress on a fault plane
  • Stress around a borehole
  • Transformation to the principal stress coordinate system
  • Direction of horizontal stress
  • Visualizing the stress tensor: Stress ellipse and Mohr circle
  • Rock fracture, friction and pore pressure
• Stress information from microearthquakes
  • The seismic moment tensor
  • P and T axes and the stress tensor
  • Determining fault orientations from seismic wave observations
  • Inverting focal mechanisms for the stress tensor
• Stress information from deep boreholes
  • Hydraulic fracturing
  • Borehole breakouts
  • Drilling-induced tensile wall-fractures
• Iceland and the SIL network
  • Brief introduction to the tectonics of Iceland
  • SIL: The Icelandic seismic network
• Summary of papers
  • Paper I
  • Paper II
  • Paper III
  • Paper IV
• Concluding reflexions
• Acknowledgments
• Bibliography
• Computer programs
  • sti
  • ampcorr
• About this document ...