David Hill (Former Employee)
Science and Products
Filter Total Items: 15
Earthquakes and carbon dioxide beneath Mammoth Mountain, California
No abstract available.
Authors
David P. Hill
Long-period earthquakes in the Long Valley Caldera Region, eastern California
Most earthquakes occurring near Long Valley caldera since the onset of recurring swarm activity in 1980 have the broad-band signature typical of tectonic or volcano-tectonic earthquakes with impulsive, high-frequency P and S waves. With the Mammoth Mountain earthquake swarm in mid 1989, we began detecting occasional events with a marked deficiency in energy above 5 Hz, a feature typical of long-pe
Authors
Andrew M. Pitt, David P. Hill
Critically refracted waves in a spherically symmetric radially heterogeneous Earth model
A theoretical analysis of acoustic waves refracted by a spherical boundary across which velocity and density increase abruptly and below which velocity and density may either increase or decrease continuously with depth is formulated in terms of waves generated at a harmonic point source and scattered by a radially heterogeneous spherical body. Through the application of an Earth-flattening transf
Authors
David P. Hill
Science and Products
Filter Total Items: 15
Earthquakes and carbon dioxide beneath Mammoth Mountain, California
No abstract available.
Authors
David P. Hill
Long-period earthquakes in the Long Valley Caldera Region, eastern California
Most earthquakes occurring near Long Valley caldera since the onset of recurring swarm activity in 1980 have the broad-band signature typical of tectonic or volcano-tectonic earthquakes with impulsive, high-frequency P and S waves. With the Mammoth Mountain earthquake swarm in mid 1989, we began detecting occasional events with a marked deficiency in energy above 5 Hz, a feature typical of long-pe
Authors
Andrew M. Pitt, David P. Hill
Critically refracted waves in a spherically symmetric radially heterogeneous Earth model
A theoretical analysis of acoustic waves refracted by a spherical boundary across which velocity and density increase abruptly and below which velocity and density may either increase or decrease continuously with depth is formulated in terms of waves generated at a harmonic point source and scattered by a radially heterogeneous spherical body. Through the application of an Earth-flattening transf
Authors
David P. Hill
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