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Kenneth W. Hudnut U. S. Geological Survey Pasadena, California

Kenneth W. Hudnut U. S. Geological Survey Pasadena, California

Measuring Fault Slip - Why and How?. Kenneth W. Hudnut U. S. Geological Survey Pasadena, California. Berkeley Seismo Lab Seminar U. C. Berkeley, California March 11, 2003. Measuring fault slip - why and how?. Why?

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564 views • 47 slides
EARTHQUAKES (2): WAVEFORM MODELING, MOMENT TENSORS, & SOURCE PARAMETERS

EARTHQUAKES (2): WAVEFORM MODELING, MOMENT TENSORS, & SOURCE PARAMETERS

EARTHQUAKES (2): WAVEFORM MODELING, MOMENT TENSORS, & SOURCE PARAMETERS. Kikuchi and Kanamori, 1991. SOMETIMES FIRST MOTIONS DON’T CONSTRAIN FOCAL MECHANISM Especially likely when Few nearby stations, as in the oceans, so arrivals are near center of focal sphere

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781 views • 42 slides
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462 views • 34 slides
The Amplitude Gain of Wiggles and Pixels for Reflection and Transmission Seismics

The Amplitude Gain of Wiggles and Pixels for Reflection and Transmission Seismics

The Amplitude Gain of Wiggles and Pixels for Reflection and Transmission Seismics. By Robert Nowack Purdue University. Reflection Seismology. In reflection seismology, seismic waves from surface sources are reflected from subsurface geologic structure.

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316 views • 31 slides
Computer Aided Tomography

Computer Aided Tomography

Computer Aided Tomography. Tomos: cut (Gr.) Extensively used to find 3D structure from surface measurements (X-ray, sound, seismic waves). Principles of tomography. Seismic tomography. Earthquake source & receivers 3D perturbation vs 1D Earth model (PREM) Difficulties:

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461 views • 5 slides

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