Frequency-dependent groundwater response to earthquakes in carbonate aquifer

Shi, Zheming; Wang, Chi‐Yuen; Yan, Rui

doi:10.1016/j.jhydrol.2021.127153

Cited by 6 publications

(9 citation statements)

References 38 publications

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“…After the 2011 M9.1 Tohoku earthquake, Japan, some wells in China (Table 1), more than 2,000 km away from the epicenter, also showed irreversible changes of the tidal response (Shi et al, 2021;Yang et al, 2021;Zhang et al, 2021). The middle two rows in Figure 1a shows that responses of the M 2 and the O 1 tides in the ZJZ well in northern China changed after the Tohoku earthquake (red arrow marked T) and stayed at the coseismic level for many years afterward (Yang et al, 2021); the changes of tidal response during the Wenchuan earthquake (red arrow marked W), however, recovered gradually to the pre-seismic level.…”

Section: Observation and Interpretationmentioning

confidence: 99%

“…A distinct physical mechanism is thus implied. Shi et al (2021) analyzed the frequency content of the surface waves from the two earthquakes using seismic records from a broadband seismometer near the Taiyuan well. They showed that the Rayleigh waves of the Tohoku earthquake have a dominant frequency of ∼0.05 Hz, lower by a factor of five than that of the Wenchuan earthquake and suggested that the lower frequency seismic waves may be more effective in clearing larger clogs from larger fractures, resulting in prolonged increase in the vertical permeability after the Tohoku earthquake.…”

Section: A New Mechanismmentioning

confidence: 99%

“…Using this model and the response to the M 2 tide, Shi et al. (2021) interpreted the co‐seismic change of tidal response in the TY well to correspond to a transient increase of the vertical conductivity of the aquitard after the Wenchuan earthquake but a permanent increase of the vertical conductivity by two‐orders‐of‐magnitude after the Tohoku earthquake (top row of Figure 1b). Using the same model and the responses to both the M 2 and O 1 tides in the ZJZ well Zhang et al.…”

Section: Observation and Interpretationmentioning

confidence: 99%

“…Most such changes are transient and reversible and affect only the horizontal permeability of aquifers (e.g., Elkhoury et al., 2006) and are variably interpreted to be due to co‐seismic redistribution of debris or gas bubbles from sedimentary pores or pre‐existing fractures (e.g., Brodsky et al., 2003; Roeloffs, 1998). Recent studies (Liao et al., 2015; Shi et al., 2021; Yang et al., 2021; Zhang et al., 2021), however, revealed a distinct mode of earthquake‐induced increase of permeability in both the horizontal and the vertical directions, and the increases stayed at the co‐seismic level for many years. Such responses are inconsistent with the existing models and suggest a distinct and previously unrecognized mechanism for the enhanced permeability during earthquakes.…”

Section: Introductionmentioning

confidence: 99%

“…cZhang et al (2021). dShi et al (2021). Well Locations, Lithology, Distance to Earthquakes and the Seismic Energy Density at the Wells…”

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confidence: 99%

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A New Mechanism for Earthquake‐Enhanced Permeability

Wang

2022

Water Resources Research

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The permeability of Earth's crust is of great interest because it governs key hydrogeologic processes such as advective transport of heat and solutes and the generation of elevated fluid pressures by processes such as compaction and liquefaction (e.g., Manga et al., 2012). Studies of organic matters and fluid inclusions in mineral cement in sedimentary basins often reveal evidence of upward migration of hot fluids from depths (e.g., Mark et al., 2005;Price, 1978). Yet the mechanism for such upward migration has remained obscure. Recent studies of the hydrogeologic responses to earthquakes have revealed that earthquakes may cause dynamic changes of crustal permeability at great distances from the epicenters (see Manga et al., 2012, for a review). Most such changes are transient and reversible and affect only the horizontal permeability of aquifers (e.g., Elkhoury et al., 2006) and are variably interpreted to be due to co-seismic redistribution of debris or gas bubbles from sedimentary pores or pre-existing fractures (e.g.,

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Section: Observation and Interpretationmentioning

confidence: 99%

Section: A New Mechanismmentioning

confidence: 99%

Section: Observation and Interpretationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…cZhang et al (2021). dShi et al (2021). Well Locations, Lithology, Distance to Earthquakes and the Seismic Energy Density at the Wells…”

mentioning

confidence: 99%

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A New Mechanism for Earthquake‐Enhanced Permeability

Wang

2022

Water Resources Research

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Changes in the Hydraulic Characteristics in Chongqing Related to the Wenchuan Earthquake

Lan

Zhao

et al. 2022

Pure Appl. Geophys.

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Azimuthal pore pressure response to teleseismic waves: effects of damage and stress anisotropy

Panteleev,

Lyakhovsky,

Shalev

2024

Geophysical Journal International

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Summary Pore pressure oscillations induced by stress variations including propagating seismic waves from remote earthquakes have been widely observed in various groundwater systems. The monitored pressure change in wells shows significant water-level oscillations to volumetric strain as well as to S and Love waves. Recent observations demonstrated azimuthal dependence of the pore pressure oscillations with respect to stress indicators and fault zone orientation. Within the fault zone, damaged induced anisotropy is the result of the alignment and orientation of cracks and other internal flaws within the rock. In this work, we provide a complete quantitative description of the pore pressure changes induced by passing seismic waves associated with different orientations and values of principal stress and damage tensor components. The model quantifies the azimuthal dependency of the pore pressure response by a non-dimensional ratio defined as the amplitude of the pressure oscillations induced by a shear strain normalized to the volumetric strain. Three angles and two values are needed to calculate the azimuth dependency of the pore pressure response: the angle between the directions of the maximum horizontal stress and the seismic event; fault zone orientation; micro-crack orientation within the fault zone; damage and stress values. The model predicts that maximum pore pressure response occurs when micro-cracks and maximum horizontal stress are in the same orientation, high damage, and high stress anisotropy. By adjusting these quantities, we recalculate results of recent seismological studies in Arbuckle disposal well, Osage County, Oklahoma. The presented model successfully predicts the observed azimuthal dependence in wave-induced fluid pressure response, and relates the anisotropic response to tectonic indicators such as the orientations of the maximum horizontal stress, fault zone, and micro-fractures.

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Frequency-dependent groundwater response to earthquakes in carbonate aquifer

Cited by 6 publications

References 38 publications

A New Mechanism for Earthquake‐Enhanced Permeability

A New Mechanism for Earthquake‐Enhanced Permeability

Changes in the Hydraulic Characteristics in Chongqing Related to the Wenchuan Earthquake

Azimuthal pore pressure response to teleseismic waves: effects of damage and stress anisotropy

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