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Member Since 2017
Raphael A. Affinito
Ph.D Canidate , Pennsylvania State University Main Campus
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Fluid-induced slip on velocity-weakening and velocity-strengthening faults
ADVANCES IN UNDERSTANDING TRIGGERING MECHANISMS OF INDUCED SEISMICITY I ORAL
seismology | 12 december 2024
Agathe Eijsink, Raphael A. Affinito, Chris Marone,...
Injecting fluids into the subsurface has an associated risk of induced seismicity in response to the decrease in effective normal stress. Traditional ...
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Rheology of Basaltic Lava Flows from Pacaya with Stress-Strain Steps: A Laboratory Approach
UNDERSTANDING VOLCANIC AND VOLCANOTECTONIC PROCESSES III POSTER
volcanology, geochemistry and petrology | 12 december 2024
Heriberto Patino Luna, Raphael A. Affinito, Christ...
Understanding the rheology of volcanic rocks, i.e., the relationship between stress (applied load) and strain (resulting deformation), is crucial for ...
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The Rate and Pressure Dependence of Dilatancy and Fault Strength in Partially-Drained Laboratory Faults
CRUSTAL DEFORMATION AND HETEROGENEITY FROM LABORATORY EXPERIMENTS TO LARGE EARTHQUAKE CYCLES II ORAL
mineral and rock physics | 12 december 2024
Raphael A. Affinito, Derek Elsworth, Tushar Mittal...
Pore fluid dynamics play a critical role in the evolution of fault strength through the seismic cycle. Key controls on the influence of fluids on faul...
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The role of fluids and fluid pressure on fault healing in simulated anhydrite fault gouge
CHARACTERISTICS OF FAULTS AND FAULT ZONES AND THEIR INFLUENCE ON EARTHQUAKE PHYSICS: OBSERVATIONS, MODELS, AND EXPERIMENTS III POSTER
tectonophysics | 10 december 2024
Raphael A. Affinito, Giuseppe Volpe
Pore fluid pressure plays a significant role in earthquake phenomena and is often considered a key mechanism to explain the spectrum of fault slip beh...
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Frictional Properties and Healing Behavior of Tectonic Mélanges: Implications for the Evolution of Subduction Fault Zones
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
21 june 2024
Tsai-Wei Chen, Raphael A. Affinito, Chris Marone, ...
The frictional velocity dependence and healing behavior of subduction fault zones play key roles in the nucleation of stick‐slip instabilitie...
The Stability Transition From Stable to Unstable Frictional Slip With Finite Pore Pressure
GEOPHYSICAL RESEARCH LETTERS
27 december 2023
Raphael A. Affinito, Clay Wood, Samson B. Marty, D...
Pore fluids are ubiquitous throughout the lithosphere and are commonly invoked as the cause of induced seismicity and slow earthquakes. We perform ...
Frictional stability and poromechanical properties of igneous rocks: Implications for seismicity in enhanced geothermal systems
FAULT ZONE FLUID MIGRATION AND INDUCED SEISMICITY POTENTIAL IN GEOENERGY TECHNOLOGIES I POSTER
hydrology | 15 december 2023
Raphael A. Affinito, Chris Marone, Derek Elsworth,...
A significant challenge in enhanced geothermal systems (EGS) is developing and maintaining permeability and mitigating associated induced seismicity. ...
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Aseismic faulting associated with injection induced earthquakes in the Delaware Mountain Group of West Texas: Insights from Laboratory Experiments
GEOENERGY-INDUCED SEISMICITY: DETECTION, MANAGEMENT, AND MITIGATION IV POSTER
seismology | 15 december 2023
David C. Bolton, Raphael A. Affinito, Katie M. Sm...
Tectonic faults can slip through a spectrum of slip modes depending upon their frictional properties and the elastic stiffness surrounding the fault z...
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