EGU session “Paleoseismicity, active faulting, surface deformation, and the implications on seismic hazard assessment (Fault2SHA)”

Dear colleagues,

we wish you a Happy New Year and would like to advertise our session on “Paleoseismicity, active faulting, surface deformation, and the implications on seismic hazard assessment (Fault2SHA)” at the EGU General Assembly in Vienna (April 8-13, 2018). Please consider submitting an abstract before the deadline on Wednesday, 10 January 2018, 13:00 Central European Time. Please consider contributing with your studies by submitting your abstract here:

http://meetingorganizer.copernicus.org/EGU2018/session/27065

TS5.1/NH4.8/SM 3.02

Paleoseismicity, active faulting, surface deformation, and the implications on seismic hazard assessment (Fault2SHA) (co-organized)

Conveners

Esther Hintersberger, Kris Vanneste, Angela Landgraf, Silke Mechernich, Romain Le Roux-Mallouf, Laura Peruzza, Oona Scotti

Invited speakers

María Ortuno/Eulàlia Masana (U Barcelona)
Austin Elliott (U Oxford)
Neta Wechsler (U Tel-Aviv)

Session description

The study of active faults and surface deformation continues to add significant contributions to our understanding of earthquake mechanisms and the assessment of related seismic hazard.
Active faulting shapes and deforms the Earth’s surface and their records are documented in young sediments and in the landscape geomorphology. Field studies of recent earthquake ruptures help not only constraining earthquake source parameters but also the identification of previously unknown active structures. The insights gleaned from recent earthquakes have been shown to be applicable to study past earthquakes. Paleoseismology and related disciplines such as paleogeodesy and paleotsunami investigations are the primary tools to establish earthquake records that are long enough to determine recurrence intervals and long-term deformation rates for active faults. Multidisciplinary data sets accumulated over the years have brought unprecedented constraints on the size and timing of past earthquakes, and allow deciphering shorter-term variations in fault slip rates or seismic activity rates, as well as the interaction of single faults within fault systems. Based on this wide and very heterogeneous knowledge of seismogenic faults, a variety of approaches have been developed to transfer earthquake-fault geology into fault models suitable for probabilistic seismic hazard assessment (SHA). This session aims to link paleoseismic studies (remote sensing, field geology, lab analysis) with modeling approaches (crustal deformation modeling, fault modeling, seismic hazard assessment).

In this session, we highly welcome contributions (i) describing and critically discussing methodologies implemented in the field to collect active faults data and (ii) describing how such data is transferred into fault models for SHA. We are particularly interested in studies applying new and innovative methodologies or multidisciplinary approaches. We aim to assemble a broad program bringing together studies dealing with on-land, lake and offshore environments, and applying a variety of traditional methods (paleoseismic trenching, high-resolution coring, geophysical imaging, tectonic geomorphology, and remote sensing) as well as fault2SHA studies that propose methodologies to characterize seismic hazard integrating fault data with seismological and geodetic data.

We are looking forward to meet you in Vienna,

best regards,

Esther Hintersberger, Kris Vanneste, Angela Landgraf, Silke Mechernich, Romain Le Roux-Mallouf, Laura Peruzza, Oona Scotti

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