TH
Member Since 2000
Takehiro Hirose
Researcher, JAMSTEC Japan Agency for Marine-Earth Science and Technology
AGU Research
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Evolution of Fault Permeability During Sequences of High-velocity Slip Pulses
RUPTURE AND DEFORMATION PROCESSES, FROM SLOW TO FAST AND FROM MICRO TO MACRO II ORAL
mineral and rock physics | 14 december 2023
John D. Bedford, Dan Faulkner, Takehiro Hirose
As seismogenic faults experience more and more earthquakes during their lifetime, the grain size and porosity of the fault gouge that comprises the fa...
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Fault Mechanical Evolution During Sequences of High-velocity Slip Pulses
FRACTURE ROUGHNESS ANALYSIS AND INFLUENCE OF FAULT STRUCTURAL MATURITY ON EARTHQUAKE BEHAVIOR II ORAL
tectonophysics | 13 december 2023
Dan Faulkner, John D. Bedford, Takehiro Hirose
During their lifetime, seismogenic faults will experience numerous earthquakes, with each event imparting damage onto the rocks that comprise the faul...
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Slip-Weakening Behavior of Volcanic Glass-Smectite Mixture at Intermediate Velocity Conditions: Implication for Slow Earthquakes
SLOW-TO-FAST EARTHQUAKES FROM SHALLOW TO DEEP: OBSERVATIONS, EXPERIMENTS, AND NUMERICAL MODELING IV POSTER
tectonophysics | 13 december 2023
Hanaya Okuda, Takehiro Hirose, Asuka Yamaguchi
Volcanic glass is abundant in shallow subduction zones and it produces one of the weakest materials, smectite, through alteration processes. Despite v...
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Slow to fast slip experiments on sandstone gouges within the Himalayan Main Frontal Thrust: frictional properties of heterogenous fault rocks and constraints on seismicity of shallow crustal deformation
BRIDGING FIELD AND LABORATORY STUDIES TO UNVEIL THE MECHANISMS OF UNSTABLE FAULT SLIP II POSTER
tectonophysics | 13 december 2023
Dyuti Prakash P. Sarkar, Takehiro Hirose
Crustal scale faults are typically kilometer-scale faults forming often at convergent plate boundaries; and are areas of stress accumulation and their...
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Preliminary results of three-dimensional stress orientation in the Kumano forearc basin of the Nankai Subduction Zone, Japan by anelastic strain recovery measurements of core samples retrieved from IODP drilling sites C0025 and C0009
NOVEL APPROACHES IN THE USE OF SCIENTIFIC OCEAN DRILLING DATA POSTER
informatics | 11 december 2023
Weiren Lin, Yuzuru Yamamoto, Timothy B. Byrne, Yuh...
To investigate present-day stress state in seismogenic subduction zones we have conducted stress measurements by anelastic strain recovery (ASR) metho...
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Potential Role of Volcanic Glass‐Smectite Mixtures in Slow Earthquakes in Shallow Subduction Zones: Insights From Low‐ to High‐Velocity Friction Experiments
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
31 july 2023
Hanaya Okuda, Takehiro Hirose, Asuka Yamaguchi
Volcanic glass and its mixture with smectite are commonly observed in shallow parts of subduction zones. As volcanic glass layers often act as glid...
Rapid Fault Healing After Seismic Slip
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
15 june 2023
John D. Bedford, Takehiro Hirose, Yohei Hamada
Fault strength recovery (healing) following an earthquake is a key process in controlling the recurrence of future events; however, the rates and m...
Fault healing during fluid flow: The role of increasing pore fluid pressure in apparent strength recovery
COMPARATIVE INVESTIGATIONS OF SLOW-TO-FAST EARTHQUAKES: OBSERVATIONS, EXPERIMENTS, AND NUMERICAL MODELING I ONLINE POSTER DISCUSSION
tectonophysics | 14 december 2022
Yohei Hamada, Takehiro Hirose
Various seismological and geological observations have focused on the role of fluids in the generation of earthquake, including slow slip. Recent scie...
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