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Understanding rate effects in injection-induced earthquakes 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Alghannam, Maryam;  Juanes, Ruben
收藏  |  浏览/下载:6/0  |  提交时间:2020/06/22
Extreme rainfall triggered the 2018 rift eruption at Kilauea Volcano 期刊论文
NATURE, 2020, 580 (7804) : 491-+
作者:  Cloutier, Richard;  Clement, Alice M.;  Lee, Michael S. Y.;  Noel, Roxanne;  Bechard, Isabelle;  Roy, Vincent;  Long, John A.
收藏  |  浏览/下载:33/0  |  提交时间:2020/05/13

The May 2018 rift intrusion and eruption of Kilauea Volcano, Hawai'  i, represented one of its most extraordinary eruptive sequences in at least 200 years, yet the trigger mechanism remains elusive(1). The event was preceded by several months of anomalously high precipitation. It has been proposed that rainfall can modulate shallow volcanic activity(2,3), but it remains unknown whether it can have impacts at the greater depths associated with magma transport. Here we show that immediately before and during the eruption, infiltration of rainfall into Kilauea Volcano'  s subsurface increased pore pressure at depths of 1 to 3 kilometres by 0.1 to 1 kilopascals, to its highest pressure in almost 50 years. We propose that weakening and mechanical failure of the edifice was driven by changes in pore pressure within the rift zone, prompting opportunistic dyke intrusion and ultimately facilitating the eruption. A precipitation-induced eruption trigger is consistent with the lack of precursory summit inflation, showing that this intrusion-unlike others-was not caused by the forceful intrusion of new magma into the rift zone. Moreover, statistical analysis of historic eruption occurrence suggests that rainfall patterns contribute substantially to the timing and frequency of Kilauea'  s eruptions and intrusions. Thus, volcanic activity can be modulated by extreme rainfall triggering edifice rock failure-a factor that should be considered when assessing volcanic hazards. Notably, the increasingly extreme weather patterns associated with ongoing anthropogenic climate change could increase the potential for rainfall-triggered volcanic phenomena worldwide.


Immediately before and during the eruption of Ki & x304  lauea Volcano in May 2018, anomalously high rainfall increased the pore pressure in the subsurface to its highest level in 50 years, causing weakening and mechanical failure of the edifice.


  
Subcore Scale Fluid Flow Behavior in a Sandstone With Cataclastic Deformation Bands 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (4)
作者:  Romano, Carla R.;  Zahasky, Christopher;  Garing, Charlotte;  Minto, James M.;  Benson, Sally M.;  Shipton, Zoe K.;  Lunn, Rebecca J.
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
deformation bands  multiphase fluid flow  capillary heterogeneity  X-ray computed tomography  positron emission tomography  
Deformation-Based Monitoring of Water Migration in Rocks Using Distributed Fiber Optic Strain Sensing: A Laboratory Study 期刊论文
WATER RESOURCES RESEARCH, 2019
作者:  Zhang, Yi;  Xue, Ziqiu
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
Distributed sensing  Strain  Optic fiber  Geomechancs  Reservoir monitoring  Fluid injection  
High-Speed Quantification of Pore-Scale Multiphase Flow of Water and Supercritical CO2 in 2-D Heterogeneous Porous Micromodels: Flow Regimes and Interface Dynamics 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (5) : 3758-3779
作者:  Li, Yaofa;  Blois, Gianluca;  Kazemifar, Farzan;  Christensen, Kenneth T.
收藏  |  浏览/下载:8/0  |  提交时间:2019/11/26
pore-scale flow  water and liquid CO2  micro-PIV  geologic CO2 sequestration  
Investigation Parameters for Sound Induced by Fluid Displacement in Rock Samples 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (5) : 4220-4232
作者:  Mikhailov, Dmitry;  Sergeev, Stanislav
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/26
acoustic emission  displacement  porous medium  flow regime  laboratory study  mathematical model  
Tracking CO2 Plumes in Clay-Rich Rock by Distributed Fiber Optic Strain Sensing (DFOSS): A Laboratory Demonstration 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (1) : 856-867
作者:  Zhang, Yi;  Xue, Ziqiu;  Park, Hyuck;  Shi, Ji-Quan;  Kiyama, Tamotsu;  Lei, Xinglin;  Sun, Yankun;  Liang, Yunfeng
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
CO2 storage  deformation  strain  optical fiber strain sensing  X-ray CT imaging  reservoir monitoring  
Mechanisms of Earthquake-Induced Chemical and Fluid Transport to Carbonate Groundwater Springs After Earthquakes 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (8) : 5225-5244
作者:  Rosen, Michael R.;  Binda, Gilberto;  Archer, Claire;  Pozzi, Andrea;  Michetti, Alessandro M.;  Noble, Paula J.
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
Central Italy  2016-2017 earthquakes  fractured carbonate aquifers  water quality  carbonate groundwater springs  temporal change  
Minimized Capillary End Effect During CO2 Displacement in 2-D Micromodel by Manipulating Capillary Pressure at the Outlet Boundary in Lattice Boltzmann Method 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (2) : 895-915
作者:  Kang, Dong Hun;  Yun, Tae Sup
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
The Effect of Wettability Heterogeneity on Relative Permeability of Two-Phase Flow in Porous Media: A Lattice Boltzmann Study 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (2) : 1295-1311
作者:  Zhao, Jianlin;  Kang, Qinjun;  Yao, Jun;  Viswanathan, Hari;  Pawar, Rajesh;  Zhang, Lei;  Sun, Hai
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
two-phase flow  relative permeability  fractionally wet  specific interfacial length  tortuosity  lattice Boltzmann method