Thread: IUGG2019 - JS03 Subduction zone deformation and structure

Started: 2019-02-13 01:07:56
Last activity: 2019-02-13 01:07:56
Topics: IUGG Meetings
Dear Colleagues,

We would like to draw your attention to JS03 - Subduction Zone Deformation and Structure, co-sponsored by IASPEI, IAG, and IAVCEI, at the centennial IUGG meeting in Montréal, Canada (July 8-18, 2019) Session description is below.

Please consider submitting an abstract to this joint symposium at . Abstract submission deadline is February 18, 2019.

Subduction zones encompass a range of significant processes contributing to the long-term evolution of the Earth. Megathrust earthquakes along subduction margins define a major geohazard capable of catastrophic damages, as evidenced by the 2011 Japan and 2004 Indian Ocean earthquakes, that are stark reminders of what is likely in store for Cascadia. However, our understanding of subduction zone processes and ultimately characterization of geohazards is hampered by a lack of observations, in particular offshore. For Cascadia, this data gap lies directly above the seismogenic zone and its downdip transition to slow earthquake phenomena, where material properties evolve due to hydro-mechanical variations and metamorphic reactions. In recent years, improvements to permanent monitoring networks and dense temporary deployments have focused on a 4D characterization of stress, strength and fluid pressure evolution in subduction zones. In this session we invite contributions from a broad range of disciplines that address first-order questions about how megathrusts work, based on onshore/offshore surveys and integration of observation and modeling approaches for global subduction zones.

Conveners: Yajing Liu (McGill, IASPEI), Michael Bostock (UBC, IASPEI), Kelin Wang (GSC, IASPEI), Lucinda Leonard (UVic, IAG), Simon Peacock (UBC, IAVCEI)

Best wishes,

Yajing Liu
Associate Professor
Department of Earth and Planetary Sciences
McGill University
Montreal, Canada

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