Paul Hsieh (Former Employee)
Science and Products
Filter Total Items: 67
Snowmelt-triggered earthquake swarms at the margin of Long Valley Caldera, California Snowmelt-triggered earthquake swarms at the margin of Long Valley Caldera, California
Fluids are well known to influence earthquakes, yet rarely are earthquakes convincingly linked to precipitation. Weak modulation or limited data often leads to ambiguous interpretations. In contrast, here we find that shallow seismicity in the Sierra Nevada range near Long Valley Caldera is strongly modulated by snowmelt. Over 33 years, shallow seismicity rates were ~37 times higher...
Authors
Emily K. Montgomery-Brown, David R. Shelly, Paul A. Hsieh
Groundwater inflow toward a preheated volcanic conduit: Application to the 2018 eruption at Kīlauea Volcano, Hawai’i Groundwater inflow toward a preheated volcanic conduit: Application to the 2018 eruption at Kīlauea Volcano, Hawai’i
The many successes in volcano forecasting over the past several decades owe mainly to pattern recognition, both in monitoring data and the geologic record. During the early stages of the 2018 Kīlauea eruption, the conceptual model of Stearns (1925), based on the explosive 1924 Kīlauea eruption, was highly influential. This model postulates that explosions are triggered by liquid-water...
Authors
Paul A. Hsieh, Steven E. Ingebritsen
Fractured rock environments Fractured rock environments
No abstract available.
Authors
Paul A. Hsieh
Bioremediation in fractured rock: 1. Modeling to inform design, monitoring, and expectations Bioremediation in fractured rock: 1. Modeling to inform design, monitoring, and expectations
Field characterization of a trichloroethene (TCE) source area in fractured mudstones produced a detailed understanding of the geology, contaminant distribution in fractures and the rock matrix, and hydraulic and transport properties. Groundwater flow and chemical transport modeling that synthesized the field characterization information proved critical for designing bioremediation of the...
Authors
Claire R. Tiedeman, Allen M. Shapiro, Paul A. Hsieh, Thomas E. Imbrigiotta, Daniel J. Goode, Pierre Lacombe, Mary F. DeFlaun, Scott R. Drew, Carole D. Johnson, John Williams, Gary P. Curtis
Bioremediation in fractured rock: 2. Mobilization of chloroethene compounds from the rock matrix Bioremediation in fractured rock: 2. Mobilization of chloroethene compounds from the rock matrix
A mass balance is formulated to evaluate the mobilization of chlorinated ethene compounds (CE) from the rock matrix of a fractured mudstone aquifer under pre- and postbioremediation conditions. The analysis relies on a sparse number of monitoring locations and is constrained by a detailed description of the groundwater flow regime. Groundwater flow modeling developed under the site
Authors
Allen M. Shapiro, Claire R. Tiedeman, Thomas E. Imbrigiotta, Daniel J. Goode, Paul A. Hsieh, Pierre Lacombe, Mary F. DeFlaun, Scott R. Drew, Gary P. Curtis
Causes of distal volcano-tectonic seismicity inferred from hydrothermal modeling Causes of distal volcano-tectonic seismicity inferred from hydrothermal modeling
Distal volcano-tectonic (dVT) seismicity typically precedes eruption at long-dormant volcanoes by days to years. Precursory dVT seismicity may reflect magma-induced fluid-pressure pulses that intersect critically stressed faults. We explored this hypothesis using an open-source magmatic-hydrothermal code that simulates multiphase fluid and heat transport over the temperature range 0 to...
Authors
Cecile A. Coulon, Paul A. Hsieh, Randall A. White, Jacob B. Lowenstern, Steven E. Ingebritsen
Non-USGS Publications**
Montgomery-Brown, E. K., Shelly, D. R., & Hsieh, P. A., 2019, Snowmelt-triggered earthquake swarms at the margin of Long Valley Caldera, California, Geophysical Research Letters, 46. https://doi.org/10.1029/2019GL082254.
National Research Council. 2001. Conceptual Models of Flow and Transport in the Fractured Vadose Zone. Washington, DC: The National Academies Press. https://doi.org/10.17226/10102.
Committee on Fracture Characterization and Fluid Flow, 1996, Rock Fractures and Fluid Flow, Contemporary Understanding and Applications: Washington D.C., National Academy Press, 551 p.
Poroelasticity simulation of ground-water flow and subsurface deformation; Simulation of deformation of sediments from decline of ground-water levels in an aquifer underlain by a bedrock step
Ritzi, R.W., Jr., Sorooshian, S., and Hsieh, P.A., 1991, The estimation of fluid flow properties from the response of water levels in wells to the combined atmospheric and earth tide forces: Water Resources Research, v. 27, no. 5, p. 883-893.
Barton, C.C., and Hsieh, P.A., 1989, Physical and hydrologic-flow properties of fractures, Field Trip Guidebook T385, 28th International Geologic Congress: American Geophysical Union, Washington, D. C., 36 p.
Hsieh, P.A., Bredehoeft, J.D., and Farr, J.M, 1987, Determination of aquifer transmissivity from earth tide analysis: Water Resources Research, v. 23, no. 10, p. 1824-1832.
Hsieh, P.A., Neuman, S.P., and Simpson, E.S., 1983, Pressure testing of fractured rocks--a methodology employing three-dimensional cross-hole tests: U. S. Nuclear Regulatory Commission Topical Report NUREG/CR- 3213, 176 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 67
Snowmelt-triggered earthquake swarms at the margin of Long Valley Caldera, California Snowmelt-triggered earthquake swarms at the margin of Long Valley Caldera, California
Fluids are well known to influence earthquakes, yet rarely are earthquakes convincingly linked to precipitation. Weak modulation or limited data often leads to ambiguous interpretations. In contrast, here we find that shallow seismicity in the Sierra Nevada range near Long Valley Caldera is strongly modulated by snowmelt. Over 33 years, shallow seismicity rates were ~37 times higher...
Authors
Emily K. Montgomery-Brown, David R. Shelly, Paul A. Hsieh
Groundwater inflow toward a preheated volcanic conduit: Application to the 2018 eruption at Kīlauea Volcano, Hawai’i Groundwater inflow toward a preheated volcanic conduit: Application to the 2018 eruption at Kīlauea Volcano, Hawai’i
The many successes in volcano forecasting over the past several decades owe mainly to pattern recognition, both in monitoring data and the geologic record. During the early stages of the 2018 Kīlauea eruption, the conceptual model of Stearns (1925), based on the explosive 1924 Kīlauea eruption, was highly influential. This model postulates that explosions are triggered by liquid-water...
Authors
Paul A. Hsieh, Steven E. Ingebritsen
Fractured rock environments Fractured rock environments
No abstract available.
Authors
Paul A. Hsieh
Bioremediation in fractured rock: 1. Modeling to inform design, monitoring, and expectations Bioremediation in fractured rock: 1. Modeling to inform design, monitoring, and expectations
Field characterization of a trichloroethene (TCE) source area in fractured mudstones produced a detailed understanding of the geology, contaminant distribution in fractures and the rock matrix, and hydraulic and transport properties. Groundwater flow and chemical transport modeling that synthesized the field characterization information proved critical for designing bioremediation of the...
Authors
Claire R. Tiedeman, Allen M. Shapiro, Paul A. Hsieh, Thomas E. Imbrigiotta, Daniel J. Goode, Pierre Lacombe, Mary F. DeFlaun, Scott R. Drew, Carole D. Johnson, John Williams, Gary P. Curtis
Bioremediation in fractured rock: 2. Mobilization of chloroethene compounds from the rock matrix Bioremediation in fractured rock: 2. Mobilization of chloroethene compounds from the rock matrix
A mass balance is formulated to evaluate the mobilization of chlorinated ethene compounds (CE) from the rock matrix of a fractured mudstone aquifer under pre- and postbioremediation conditions. The analysis relies on a sparse number of monitoring locations and is constrained by a detailed description of the groundwater flow regime. Groundwater flow modeling developed under the site
Authors
Allen M. Shapiro, Claire R. Tiedeman, Thomas E. Imbrigiotta, Daniel J. Goode, Paul A. Hsieh, Pierre Lacombe, Mary F. DeFlaun, Scott R. Drew, Gary P. Curtis
Causes of distal volcano-tectonic seismicity inferred from hydrothermal modeling Causes of distal volcano-tectonic seismicity inferred from hydrothermal modeling
Distal volcano-tectonic (dVT) seismicity typically precedes eruption at long-dormant volcanoes by days to years. Precursory dVT seismicity may reflect magma-induced fluid-pressure pulses that intersect critically stressed faults. We explored this hypothesis using an open-source magmatic-hydrothermal code that simulates multiphase fluid and heat transport over the temperature range 0 to...
Authors
Cecile A. Coulon, Paul A. Hsieh, Randall A. White, Jacob B. Lowenstern, Steven E. Ingebritsen
Non-USGS Publications**
Montgomery-Brown, E. K., Shelly, D. R., & Hsieh, P. A., 2019, Snowmelt-triggered earthquake swarms at the margin of Long Valley Caldera, California, Geophysical Research Letters, 46. https://doi.org/10.1029/2019GL082254.
National Research Council. 2001. Conceptual Models of Flow and Transport in the Fractured Vadose Zone. Washington, DC: The National Academies Press. https://doi.org/10.17226/10102.
Committee on Fracture Characterization and Fluid Flow, 1996, Rock Fractures and Fluid Flow, Contemporary Understanding and Applications: Washington D.C., National Academy Press, 551 p.
Poroelasticity simulation of ground-water flow and subsurface deformation; Simulation of deformation of sediments from decline of ground-water levels in an aquifer underlain by a bedrock step
Ritzi, R.W., Jr., Sorooshian, S., and Hsieh, P.A., 1991, The estimation of fluid flow properties from the response of water levels in wells to the combined atmospheric and earth tide forces: Water Resources Research, v. 27, no. 5, p. 883-893.
Barton, C.C., and Hsieh, P.A., 1989, Physical and hydrologic-flow properties of fractures, Field Trip Guidebook T385, 28th International Geologic Congress: American Geophysical Union, Washington, D. C., 36 p.
Hsieh, P.A., Bredehoeft, J.D., and Farr, J.M, 1987, Determination of aquifer transmissivity from earth tide analysis: Water Resources Research, v. 23, no. 10, p. 1824-1832.
Hsieh, P.A., Neuman, S.P., and Simpson, E.S., 1983, Pressure testing of fractured rocks--a methodology employing three-dimensional cross-hole tests: U. S. Nuclear Regulatory Commission Topical Report NUREG/CR- 3213, 176 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.