[S-SS05] Induced and triggered seismicity: case-studies, monitoring and modeling techniques

Sun. May 26, 2019 1:45 PM - 3:15 PM A04 (TOKYO BAY MAKUHARI HALL)

convener:Luca Urpi(Swiss Seismological Service - ETH Zurich), Bogdan Enescu(Department of Geophysics, Kyoto University), Yosuke Aoki(Earthquake Research Institute, University of Tokyo), Francesco Grigoli(ETH-Zurich, Swiss Seismological Service), Chairperson:Luca Urpi(ETH-Zurich; Swiss Seismological Service), Bogdan Enescu(Graduate Schoold of Science, Kyoto University), Francesco Grigoli(ETH-Zurich; Swiss Seismological Service), Yosuke Aoki

Induced and triggered seismicity occurs in conjunction with human activities such as reservoir impoundments, mining operations, conventional and non-conventional hydrocarbon production, geothermal energy exploitation, wastewater disposal, CO2 sequestration and gas storage operations as well as volcanic and hydrogeological processes. The stability of faults is affected by external solicitations such as pore-pressure diffusion, relaxation effects as well as stress field perturbations related to mass and/or volume changes, dike intrusions and earthquake-earthquake interactions. A better understanding of the physical processes governing induced and triggered seismicity is important for the assess the risk of current and future industrial activities, including the geological disposal of nuclear waste.

The study of Induced and triggered seismicity is inherently an interdisciplinary problem, which requires the combination of seismological, hydrogeological, geodetic data and a wide range of modeling approaches. This session welcome contributions covering the analysis and modeling of induced and triggered seismicity at different spatial scales and environments.

Relevant topics to be presented include but are not limited to case-studies of induced and triggered seismicity, spatio-temporal variations of physical parameters (including stress, pressure and temperature changes), spatio-temporal patterns of seismicity, modeling and risk mitigation strategies.

The goal of the session is to cover both theoretical and experimental aspects of these topics.

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1:45 PM - 2:00 PM

[SSS05-01] Causality between induced seismicity b-value reduction and stress state of existing fractures

★Invited Papers

*Yusuke Mukuhira¹, Michael C Fehler², Takatoshi Ito¹, Hiroshi Asanuma³, Markus O Häring⁴ (1.Institute of Fluid Science, Tohoku University, 2.ERL, Massachusetts Institute of Technology , 3.FREA, AIST, 4.Häring GeoProject)

2:00 PM - 2:15 PM

[SSS05-02] Micromechanical model connecting earthquake statistics and observed spatiotemporal changes in source parameters of fluid induced seismicity

*Daisuke Sato¹, Keisuke Yoshida² (1.Disaster Prevention Research Institute, Kyoto University, 2.Tohoku University)

2:15 PM - 2:30 PM

[SSS05-03] Seismicity induced by Multi-cycle operation of Hutubi underground gas storage, Xinjiang, China

*Baoshan Wang^1,2, Bo Zhang², Zhanbo Ji², Jinxin Hou², Lu Li² (1.University of Science and Technology of China, 2.Institute of Geophysics, China Earthquake Administration)

2:30 PM - 2:45 PM

[SSS05-04] Investigating the origin of the Mw 5.4 Pohang, Korea, earthquake of November 15, 2017: the investigations and conclusions of the Overseas Research Advisory Committee (ORAC)

*Toshihiko Shimamoto¹, William Ellsworth², Shermin Ge³, Domenico Giardini⁴, John Townend⁵ (1. Institute of Geology, China Earthquake Administration, 2.Stanford University, 3.University of Colorado Boulder, 4.ETH, Zurich, 5.Victoria University of Wellington)

2:45 PM - 3:00 PM

[SSS05-05] Seismic Anisotropy Measured before and after the 2016 Kumamoto and Kaikoura earthquakes

*Martha K Savage¹, Kenny Graham¹, Yosuke Aoki², Richard Arnold¹, Tomomi Okada³, Yoshihisa Iio⁴, Satoshi Matsumoto⁵ (1.Victoria University of Wellington, 2.Earthquake Reserach Institute, University of Tokyo, 3.Tohoku University, Sendai 980-8578, Japan, 4.Kyoto University, Uji 611-0011, Japan, 5.Kyushu University, 2-5643-29 Shin'yama, Shimabara, Nagasaki, 855-0843, Japan)

3:00 PM - 3:15 PM

[SSS05-06] Long-term behavior of induced seismicity in the Val d’Agri basin (Southern Apennines, Italy).

★Invited Papers

*Luisa Valoroso¹, Luigi Improta¹, Samer Bagh¹, Davide Piccinini¹, Pasquale De Gori¹ (1.Istituto Nazionale di Geofisica e Vulcanologia )

Session information

[S-SS05] Induced and triggered seismicity: case-studies, monitoring and modeling techniques

[SSS05-01] Causality between induced seismicity b-value reduction and stress state of existing fractures

★Invited Papers

[SSS05-02] Micromechanical model connecting earthquake statistics and observed spatiotemporal changes in source parameters of fluid induced seismicity

[SSS05-03] Seismicity induced by Multi-cycle operation of Hutubi underground gas storage, Xinjiang, China

[SSS05-04] Investigating the origin of the Mw 5.4 Pohang, Korea, earthquake of November 15, 2017: the investigations and conclusions of the Overseas Research Advisory Committee (ORAC)

[SSS05-05] Seismic Anisotropy Measured before and after the 2016 Kumamoto and Kaikoura earthquakes

[SSS05-06] Long-term behavior of induced seismicity in the Val d’Agri basin (Southern Apennines, Italy).

★Invited Papers

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