[unav_all] Fault Zone Mechanical Heterogeneity | EGU 2015

Hicks, Stephen S.Hicks at liverpool.ac.uk
Fri Jan 2 00:47:43 MST 2015


Dear Colleagues,

—Apologies for cross-posting—

With the abstract deadline fast approaching (7th January), here is just a gentle reminder about our session at the European Geosciences Union General Assembly to be held in Vienna in April 2015. Our session may well be of interest to you and your colleagues.

Confirmed presenters are:
- Rebecca Bell (Imperial College London)
- Daniel Melnick (U. Potsdam)
- Sebastian Rost (U. Leeds)
- Kelin Wang (Geological Survey of Canada)
________________________________

Mechanical Heterogeneity And Its Transient Evolution Along Fault Zones
TS4.2/EMRP4.10/SM2.2

Geophysical studies of recent well-monitored mega-earthquakes are able to reveal, with increasing resolution, the complex mechanical heterogeneities along faults (differential locking behavior, differential rupture behavior, rheological and structural variations, among others). Furthermore, observations of various transient events (afterslip, slow slip, tectonic tremors, low frequency earthquakes, viscoelastic relaxation) also evidence the temporal evolution of fault systems. While fault heterogeneities seem to have first order controls on the pattern of strain accumulation/release and carry fundamental information about the mechanical setting of faults, we have limited physical and mechanical understanding of what causes these heterogeneities, their kinematics and transient evolution between major events, and how they ultimately influence the largest seismic events.

We aim to integrate studies from various disciplines in order to compare different observations and provide insights into the physical and transient properties of fault heterogeneities and their relation to earthquakes.
Contributions from geologists, seismologists, geodesists, experimentalists, and modellers are invited, especially studies from recent great earthquakes.

Some suggested topics are:

  *   Roughness/asperities/geometry of faults
  *   Geodetic records of fault slip in different periods of the earthquake cycle
  *   Co-seismic slip inferred from seismic records of various frequencies
  *   Spatiotemporal variation of seismicity and transient events, seismic vs. aseismic slip
  *   Seismic and electromagnetic attributes around faults from tomography
  *   Relation between fault heterogeneity and rock physical/rheological properties
  *   Numerical modelling of fault zone kinematics

________________________________

See http://meetingorganizer.copernicus.org/EGU2015/session/17509 for more information and to submit an abstract.

The abstract submission deadline is 7 January 2015.

Kind regards,

Marcos Moreno;  Hiroki Sone
GFZ German Research Centre for Geosciences, Potsdam, Germany

Stephen Hicks
University of Liverpool, UK
_________________________________

Stephen P. Hicks
PhD Student
Earthquake Seismology & Geodynamics
School of Environmental Sciences
University of Liverpool
L69 3GP United Kingdom
Email: s.hicks at liv.ac.uk<mailto:s.hicks at liv.ac.uk>
Web: http://pcwww.liv.ac.uk/~es0u719b
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