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Filtering by: Subject Earthquake hazard analysis Degree Field Geosciences

Evaluation of seismic hazards from the Median Tectonic Line, Japan and blind thrust faults in the Los Angeles metropolitan area, California

Creator:

Tsutsumi, Hiroyuki

Abstract:

This thesis analyzes active geologic structures in densely populated areas in Japan and southern California based on geological, geophysical, and paleoseismological observations. Chapter 2 discusses segmentation and paleoseismology of the Median Tectonic Line, Japan. We identified 12 geometric segments along the Median Tectonic Line separated by discontinuities such as en...

Resource Type:

Dissertation
I. Direction of maximum horizontal compression in western Oregon determined by borehole breakouts. II. Structure and tectonics of the northern Willamette Valley, Oregon

Creator:

Werner, Kenneth Stefan

Abstract:

Elliptical borehole enlargements or "breakouts" caused by systematic spalling of a borehole wall due to regional maximum horizontal stresses were identified in 18 wells drilled in the Coast Range and Willamette Valley of western Oregon. The breakouts generally indicate a NNW to NNE orientation of maximum horizontal compression (oH[subscript max])...

Resource Type:

Masters Thesis