Seismological Observatory, Graduate Program in Geology, Institute of Geosciences, University of Brasília, Campus Darcy Ribeiro, 70297-400 Brasília, Brazil
Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, 05508-090 São Paulo, Brazil
Global Change Research Group (GCRG), IMEDEA, CSIC-UIB, 07190 Esporles, Spain
Seismological Observatory, Graduate Program in Geology, Institute of Geosciences, University of Brasília, Campus Darcy Ribeiro, 70297-400 Brasília, Brazil
Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, 05508-090 São Paulo, Brazil
Seismological Observatory, Graduate Program in Geology, Institute of Geosciences, University of Brasília, Campus Darcy Ribeiro, 70297-400 Brasília, Brazil
Hydropower dams associated with a large reservoir, a key renewable, face challenges like reservoir-triggered seismicity (RTS). Here, rock samples show 6.3 %–14.7 % porosity and a maximum permeability of 0.0098 mD. A 136 m reservoir rise causes a 0.61 MPa pore pressure increase. Vertical stress rises by 0.75 MPa, and horizontal stress falls by 0.48 MPa, which leads to fault destabilization, causing RTS. These facts urge the adoption of sustainable energy strategies and future dam development.
Hydropower dams associated with a large reservoir, a key renewable, face challenges like...