Significant coherence for groundwater and Rayleigh waves: Evidence in spectral response of groundwater level in Taiwan using 2011 Tohoku earthquake, Japan

Shih, David Ching‐Fang; Wu, Yih‐Min; Chang, C. C.

doi:10.1016/j.jhydrol.2013.01.013

Cited by 21 publications

(18 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Understanding permeability is key. In hydrogeology, the methods for investigating such changes include (1) laboratory-based analyses (Chapuis, 1992;Ma et al, 2014); (2) hydraulic tests (Bouwer & Rice, 1976;Cooper et al, 1965;Jacob, 1940;Sethi, 2011); and (3) evaluating the response of piezometric level to periodic loadings (such as Earth tide and atmospheric pressure; Hsieh et al, 1987;Rojstaczer, 1988;Shih, 2009;Shih et al, 2013;Sun et al, 2015). The first method often leads to results that cannot represent real values under natural conditions.…”

Section: Introductionmentioning

confidence: 99%

Changes in Permeability Caused by Two Consecutive Earthquakes—Insights From the Responses of a Well‐Aquifer System to Seismic Waves

Sun

Xiang

Shi

2019

Geophysical Research Letters

View full text Add to dashboard Cite

Earthquake‐induced aquifer permeability changes have been observed both in the laboratory and the field. However, the effects of multiple earthquakes on aquifer systems have rarely been differentiated. In this study, we analyze the piezometric response to earthquake pairs that occurred on the same day. The results show that events with higher seismic energy may result in a rise in piezometric level, and the seismic waves enhanced the permeability of the aquifer by different magnitudes. Stress/strain history from consecutive earthquakes may be retained, and permeability increased much more following the second earthquake than the first one. The method proposed in this study is useful in evaluating the permeability enhancement induced by consecutive earthquakes. The stress/strain memory of aquifers also has important implications for understanding aftershocks.

show abstract

Section: Introductionmentioning

confidence: 99%

Changes in Permeability Caused by Two Consecutive Earthquakes—Insights From the Responses of a Well‐Aquifer System to Seismic Waves

Sun

Xiang

Shi

2019

Geophysical Research Letters

View full text Add to dashboard Cite

show abstract

“…Moreover, the groundwater response to P waves cannot be determined by our monitoring system due to a measurement frequency (once every five minutes) that is not high enough to accurately record P waves, which have frequencies of several cycles per second 38 , 40 . Hence, it is commonly assumed that, in the far-field (> 1000 km), water level responds only to long-period surface Rayleigh waves 3 , 30 , 39 , 45 . Based on these previous studies, we interpreted the recorded groundwater level changes as driven by the passage of remotely-generated Rayleigh waves (teleseisms) through the aquifer.…”

Section: Discussionmentioning

confidence: 99%

New observations in Central Italy of groundwater responses to the worldwide seismicity

Barberio

Gori

Barbieri

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Chemical and physical responses of groundwater to seismicity have been documented for thousands of years. Among the waves produced by earthquakes, Rayleigh waves can spread to great distances and produce hydrogeological perturbations in response to their passage. In this work, the groundwater level, which was continuously recorded in a monitoring well in Central Italy between July 2014 and December 2019, exhibited evident responses to dynamic crustal stress. In detail, 18 sharp variations of the groundwater level due to worldwide Mw ≥ 6.5 earthquakes were observed. Apart from earthquakes that occurred in Papua New Guinea and those with a hypocentral depth > 150 km, all far away Mw ≥ 7.6 earthquakes produced impulsive oscillations of groundwater. As the earthquake magnitude decreased, only some earthquakes with 6.5 ≤ Mw < 7.6 caused groundwater level perturbations, depending on the data acquisition frequency and epicentral distance from the monitoring well. A clear correlation between earthquake distance and magnitude in hydrogeological responses was found. Our results shed light on the hydrosensitivity of the study site and on the characteristics of fractured aquifer systems. Detecting the water table variations induced by distant earthquakes is another step towards a correct identification of (preseismic) hydrogeological changes due to near-field seismicity.

show abstract

“…Liu et al (1989) observed water level fluctuations induced seismically in the Wali Well, Beijing, China. Shih (2009) and Shih et al (2013) proposed that storativity of a confined aquifer can be derived from the spectral relationship between well head and vertical displacement of a transient Rayleigh wave. Spitzberg & Ufrecht (2014) presented hydraulic analysis of a hydro-seismogram acquired from the confined karst aquifer of Stuttgart, Germany.…”

Section: Introductionmentioning

confidence: 99%

Rayleigh wave and well head response to calculate porosity in the Edwards aquifer of south-central Texas, USA

Zhang²,

Schindel³

et al. 2020

View full text Add to dashboard Cite

We use the magnitude and centroid period of Rayleigh wave along with the amplitude of fluctuations of water level in a well to calculate effective porosity of a karst aquifer at the site scale. The radial and vertical displacements of Rayleigh wave are first related to the confining pressure of rock, which is then related to fluid pressure via the Gassmann equation. Three seismograms recorded at station 633A of the USARRAY and the induced responses of Well J-17 in the Edwards Aquifer (Texas) allow the calculation of an effective porosity between 17.0 and 24.4 percent, the average of which is close to the total porosity of core samples determined by geophysical well logs. This paper provides an innovative method to measure effective porosity in aquifers. Because of the long wavelengths of Rayleigh wave, the interdisciplinary approach is advantageous in that the resulting effective porosity is at the site scale which includes large conduits or voids.

show abstract

Significant coherence for groundwater and Rayleigh waves: Evidence in spectral response of groundwater level in Taiwan using 2011 Tohoku earthquake, Japan

Cited by 21 publications

References 14 publications

Changes in Permeability Caused by Two Consecutive Earthquakes—Insights From the Responses of a Well‐Aquifer System to Seismic Waves

Changes in Permeability Caused by Two Consecutive Earthquakes—Insights From the Responses of a Well‐Aquifer System to Seismic Waves

New observations in Central Italy of groundwater responses to the worldwide seismicity

Rayleigh wave and well head response to calculate porosity in the Edwards aquifer of south-central Texas, USA

Contact Info

Product

Resources

About