Sustained groundwater level changes and permeability variation in a fault zone following the 12 May 2008, Mw7.9 Wenchuan earthquake

2014 ◽  
Vol 29 (12) ◽  
pp. 2659-2667 ◽  
Author(s):  
Zheming Shi ◽  
Guangcai Wang
Keyword(s):  
Wenchuan Earthquake ◽  
Fault Zone ◽  
Groundwater Level ◽  
Permeability Variation ◽  
Groundwater Level Changes

Groundwater Level Changes in Taiwan Caused by The Wenchuan Earthquake on 12 May 2008

2012 ◽  
Vol 169 (11) ◽  
pp. 1947-1962 ◽  
Author(s):  
Tsai-Ping Lee ◽  
Yeeping Chia ◽  
Hsin-Ying Yang ◽  
Ching-Yi Liu ◽  
Yung-Chia Chiu
Keyword(s):  
Wenchuan Earthquake ◽  
Groundwater Level ◽  
The Wenchuan Earthquake ◽  
Groundwater Level Changes

Estimating surface displacement in the Hanshin area, Japan, by PS-InSAR analysis using satellite Sentinel-1 data

2021 ◽  
Author(s):  
Yutaro Shigemitsu ◽  
Kazuya Ishitsuka ◽  
Weiren Lin
Keyword(s):  
Fault Zone ◽  
Groundwater Level ◽  
Active Faults ◽  
Surface Displacement ◽  
Sar Interferometry ◽  
Surface Displacements ◽  
Active Segment ◽  
2018 Northern Osaka Earthquake ◽  
Groundwater Level Changes

<p>The 2018 northern Osaka earthquake with a magnitude 6.1 earthquake struck on June 18, 2018 in northern Osaka, causing enormous damage. SAR interferometry using satellite synthetic aperture radar (SAR) data can detect surface displacement distribution over a wide area and is effective for observing surface displacement during an earthquake. On the other hand, it is also important to observe the tendency of long-term surface displacement around active faults on a yearly basis in order to monitor the deformation at and around active faults. In this study, we used persistent scatter SAR interferometry (PS-InSAR) to clarify the recent surface displacement including before and after the 2018 northern Osaka earthquake near the Arima-Takatsuki Fault Zone and the Mt. Rokko active segment, near the epicenter of the earthquake. PS-InSAR analysis is a method that analyzes coherent pixels only, and can extract surface displacements with less noise than the conventional two-pass SAR interferometry. By using Sentinel-1 data, we expect to understand a long-term surface displacement and temporal changes in displacement pattern by comparing with the results using other satellites in previous studies. As a result of our analysis, we found that (i) ground subsidence occurred near the Mt. Rokko active segment, (ii) subsidence or eastward displacement occurred in the eastern part of the Takarazuka GNSS station, (iii) surface displacement in the wedge-shaped area located between the Arima-Takatsuki Fault Zone and the Mt. Rokko active segment is suggested to be caused by groundwater level changes, (iv) groundwater level changes may have caused surface displacement considered to be uplift in the wide area between the Ikoma Fault Zone and Uemachi Fault Zone, and (v) slip of the source fault may have caused surface displacement around the epicenter of the 2018 northern Osaka earthquake. Furthermore, we validated the estimated surface displacements by comparison with GNSS measurements and previous studies. These results suggest that surface displacement near the Arima-Takatsuki fault zone was caused by the 2018 northern Osaka earthquake. In order to reveal the mechanism of surface displacement in the vicinity of the fault, it is necessary to continue to monitor the surface displacement in this area using time-series SAR interferometry.</p><p> </p><p> </p><p>We acknowledge Sentinel-1 data provided from the European Space Agency (ESA) based on the open data policy.</p>

scholarly journals Predicting groundwater level changes using GRACE data

2013 ◽  
Vol 49 (9) ◽  
pp. 5900-5912 ◽  
Author(s):  
Alexander Y. Sun
Keyword(s):  
Groundwater Level ◽  
Grace Data ◽  
Groundwater Level Changes

scholarly journals A viscoelastic model for groundwater level changes in the Cho-Shui River alluvial fan after the Chi-Chi earthquake in Taiwan

2004 ◽  
Vol 40 (4) ◽  
Author(s):  
Yun-Bin Lin ◽  
Yih-Chi Tan ◽  
Tian-Chyi Jim Yeh ◽  
Chen-Wuing Liu ◽  
Chu-Hui Chen
Keyword(s):  
Groundwater Level ◽  
Viscoelastic Model ◽  
Alluvial Fan ◽  
Groundwater Level Changes

scholarly journals Groundwater-level changes in response to bursts of seismic activity off the Izu Peninsula, Japan

1999 ◽  
Vol 26 (16) ◽  
pp. 2501-2504 ◽  
Author(s):  
Masao Ohno ◽  
Tsutomu Sato ◽  
Kenji Notsu ◽  
Hiroshi Wakita ◽  
Kunio Ozawa
Keyword(s):  
Groundwater Level ◽  
Seismic Activity ◽  
Izu Peninsula ◽  
Groundwater Level Changes

scholarly journals Carbonaceous Materials in the Fault Zone of the Longmenshan Fault Belt: 1. Signatures within the Deep Wenchuan Earthquake Fault Zone and Their Implications

Minerals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 385 ◽  
Author(s):  
Li-Wei Kuo ◽  
Jyh-Rou Huang ◽  
Jiann-Neng Fang ◽  
Jialiang Si ◽  
Haibing Li ◽  
...  
Keyword(s):  
Wenchuan Earthquake ◽  
Fault Zone ◽  
Active Fault ◽  
Carbonaceous Materials ◽  
Coseismic Slip ◽  
Earthquake Fault ◽  
Active Fault Zone ◽  
2008 Wenchuan Earthquake ◽  
Seismic Slip ◽  
Longmenshan Fault

Graphitization of carbonaceous materials (CM) has been experimentally demonstrated as potential evidence of seismic slip within a fault gouge. The southern segment of the Longmenshan fault, a CM-rich-gouge fault, accommodated coseismic slip during the 2008 Mw 7.9 Wenchuan earthquake and potentially preserves a record of processes that occurred on the fault during the slip event. Here, we present a multi-technique characterization of CM within the active fault zone of the Longmenshan fault from the Wenchuan earthquake Fault Scientific Drilling-1. By contrast with field observations, graphite is pervasively and only distributed in the gouge zone, while heterogeneously crystallized CM are present in the surrounding breccia. The composite dataset that is presented, which includes the localized graphite layer along the 2008 Wenchuan earthquake principal slip zone, demonstrates that graphite is widely distributed within the active fault zone. The widespread occurrence of graphite, a seismic slip indicator, reveals that surface rupturing events commonly occur along the Longmenshan fault and are characteristic of this tectonically active region.

Groundwater Level Changes Induced by Earthquakes

2020 ◽  
pp. 459-462
Author(s):  
Eyal Shalev ◽  
Hallel Lutzky ◽  
Vladimir Lyakhovsky
Keyword(s):  
Groundwater Level ◽  
Groundwater Level Changes
Sign in / Sign up

Export Citation Format

Share Document