Title: Monitoring Seasonal Shear Wave Velocity Changes in the Top 6 m at Garner Valley in Southern California With Borehole Data

Journal Article · · Geophysical Research Letters
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]
  1. Hubei Subsurface Multi‐scale Imaging Key Laboratory, School of Geophysics and Geomatics China University of Geosciences Wuhan China, Earth, Atmospheric and Planetary Sciences Massachusetts Institute of Technology Cambridge MA USA
  2. Earth Research Institute University of California Santa Barbara Santa Barbara CA USA
  3. Earth, Atmospheric and Planetary Sciences Massachusetts Institute of Technology Cambridge MA USA
  4. Earth, Atmospheric and Planetary Sciences Massachusetts Institute of Technology Cambridge MA USA, Earth and Environmental Sciences Area Lawrence Berkeley National Laboratory Berkeley CA USA
  5. Department of Earth Sciences University of Southern California Los Angeles CA USA, Southern California Earthquake Center University of Southern California Los Angeles CA USA
+ Show Author Affiliations

Abstract Subsurface structures play important roles in seismic ground motion, crustal hydrology, stability of the built environment, and more. Constraining temporal changes of subsurface shear wave velocity ( V S ) can provide useful information to all these topics and the growing field of hydrological monitoring with seismic velocity. Using borehole records at Garner Valley, CA, we estimate seasonal subsurface V S variations from impulse response functions (IRFs) of earthquake data (2005–2018) along with IRFs and cross‐correlation of cross‐hole experiment data (2015–2018). The inferred V S variations are up to ∼25% in the top 6 m and ∼10% at 2–5 m in depth. The V S variations correlate strongly with the water table depth changes, suggesting that the changes are mostly due to fluctuations of pore pressure in the shallow material. The shallow velocity changes alter the near‐surface conditions, can affect seismic hazard estimation, and may be improperly attributed to deeper processes without careful analysis.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
China University of Geosciences; Pacific Gas & Electric Company; US Geological Survey; USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231; SC0016520; SC0020291
OSTI ID:
1903071
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 23 Vol. 49; ISSN 0094-8276
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

References (53)

Seasonal Crustal Seismic Velocity Changes Throughout Japan: SEASONAL SEISMIC VELOCITY CHANGES journal October 2017
Significant Effects of Shallow Seismic and Stress Properties on Phase Velocities of Rayleigh Waves Up to 20 s journal December 2018
What is a reference? journal September 2017
The effect of saturation on velocity in low porosity rocks journal November 1969
A Fortran 90 library for multitaper spectrum analysis journal August 2009
Liquefaction analysis from seismic velocities and determination of lagoon limits Kumluca/Antalya example journal August 2013
Depth constraints on nonlinear strong ground motion from the 2004 Parkfield earthquake: DEPTH CONSTRAINTS ON NONLINEARITY journal July 2005
Near-surface weakening in Japan after the 2011 Tohoku-Oki earthquake: NEAR-SURFACE WEAKENING IN JAPAN journal September 2011
Estimating near-surface shear wave velocities in Japan by applying seismic interferometry to KiK-net data: NEAR-SURFACE S WAVE VELOCITIES IN JAPAN journal January 2012
Tracking Groundwater Levels Using the Ambient Seismic Field journal July 2018
Saturation Hysteresis Effects on the Seismic Signatures of Partially Saturated Heterogeneous Porous Rocks journal November 2019
Imaging and Monitoring Temporal Changes of Shallow Seismic Velocities at the Garner Valley Near Anza, California, Following the M7.2 2010 El Mayor‐Cucapah Earthquake journal January 2020
Eikonal Tomography of the Southern California Plate Boundary Region journal September 2019
Incorporating Wind Information in the Inversion of Co‐Located Pressure and Seismic Data for Shallow Elastic Structure journal May 2021
Aquifer Monitoring Using Ambient Seismic Noise Recorded With Distributed Acoustic Sensing (DAS) Deployed on Dark Fiber journal March 2021
Seismic Ambient Noise Analyses Reveal Changing Temperature and Water Signals to 10s of Meters Depth in the Critical Zone journal February 2021
Subsurface Moisture Regulates Himalayan Groundwater Storage and Discharge journal May 2021
A note on thermoelastic strains and tilts journal January 1975
Inversion of seismic velocities for the pore aspect ratio spectrum of a rock journal December 1979
Migration of seismic scatterers associated with the 1993 Parkfield aseismic transient event journal December 2003
Space-time monitoring of groundwater fluctuations with passive seismic interferometry journal August 2022
Monitoring ground water storage at mesoscale using seismic noise: 30 years of continuous observation and thermo-elastic and hydrological modeling journal October 2017
Decade-long monitoring of seismic velocity changes at the Irpinia fault system (southern Italy) reveals pore pressure pulsations journal January 2022
Dependencies of Shear Wave Velocity and Shear Modulus of Soil on Saturation journal November 2016
Direct Application of the Soil–Water Characteristic Curve to Estimate the Shear Modulus of Unsaturated Soils journal January 2021
Effective Soil Density for Small-Strain Shear Waves in Saturated Granular Materials journal September 2015
Regional seismic velocity changes following the 2019 Mw 7.1 Ridgecrest, California earthquake from autocorrelations and P/S converted waves journal September 2021
Experimental study and theoretical interpretation of saturation effect on ultrasonic velocity in tight sandstones under different pressure conditions journal December 2017
Imaging subsurface structures in the San Jacinto fault zone with high-frequency noise recorded by dense linear arrays journal February 2019
Temporal changes of seismic velocities in the San Jacinto Fault zone associated with the 2016 Mw 5.2 Borrego Springs earthquake journal November 2019
Spectrum estimation and harmonic analysis journal January 1982
Modelling the drained/undrained transition: effect of the measuring method and the boundary conditions journal June 2016
Refined thresholds for non-linear ground motion and temporal changes of site response associated with medium-size earthquakes: Non-linear site response by medium-size events journal July 2010
Impact of pore space topology on permeability, cut-off frequencies and validity of wave propagation theories: Pore space topology and wave propagation journal February 2012
Theory of Propagation of Elastic Waves in a Fluid‐Saturated Porous Solid. I. Low‐Frequency Range journal March 1956
Theory of Propagation of Elastic Waves in a Fluid‐Saturated Porous Solid. II. Higher Frequency Range journal March 1956
Velocity and Attenuation of Seismic Waves in Two‐Phase Media: part i. Theoretical Formulations journal October 1974
Estimating rock porosity and fluid saturation using only seismic velocities journal March 2002
Fluid mobility and frequency-dependent seismic velocity — Direct measurements journal January 2006
Seismic wave attenuation and dispersion resulting from wave-induced flow in porous rocks — A review journal September 2010
Experimental Investigation of Dynamic Response of Compacted Clayey Soils journal January 2003
Borehole Response Studies at the Garner Valley Downhole Array, Southern California journal December 2002
Temporal Changes in Site Response Associated with the Strong Ground Motion of the 2004 Mw 6.6 Mid-Niigata Earthquake Sequences in Japan journal November 2009
Regional Correlations of VS30 and Velocities Averaged Over Depths Less Than and Greater Than 30 Meters journal December 2011
In Situ Assessment of the G – γ Curve for Characterizing the Nonlinear Response of Soil: Application to the Garner Valley Downhole Array and the Wildlife Liquefaction Array journal February 2015
Monitoring Coseismic Temporal Changes of Shallow Material during Strong Ground Motion with Interferometry and Autocorrelation journal January 2019
Effects of Shallow-Velocity Reductions on 3D Propagation of Seismic Waves journal August 2020
Observation of shallow anisotropy on local earthquake records at the Garner Valley, Southern California, downhole array journal April 1996
Thermoelastic strain in a half-space covered by unconsolidated material journal October 1986
Horizontal-to-vertical spectral ratio and geological conditions: The case of Garner Valley Downhole Array in southern California journal April 1996
Effects of Soil Water Potential and Moisture Content on Sound Speed journal September 2009
Fluid-Induced Changes In Shear Velocity From Surface Waves conference January 2000
What have we Learned After a Decade of Experiments and Monitoring at the Nees@Ucsb Permanently Instrumented Field Sites? text January 2014

Similar Records

Imaging and Monitoring Temporal Changes of Shallow Seismic Velocities at the Garner Valley Near Anza, California, Following the M7.2 2010 El Mayor-Cucapah Earthquake
Journal Article · 2019 · Journal of Geophysical Research. Solid Earth · OSTI ID:1803016
+1 more
Monitoring Terrestrial Water Storage, Drought and Seasonal Changes in Central Oklahoma With Ambient Seismic Noise
Journal Article · 2023 · Geophysical Research Letters · OSTI ID:1997878
+2 more
Hydrologic Impacts of a Strike-Slip Fault Zone: Insights from Joint 3D Body-Wave Tomography of Rock Valley
Journal Article · 2023 · Bulletin of the Seismological Society of America · OSTI ID:2371084

Related Subjects

58 GEOSCIENCES