Thread: AOGS2018 Session on Basin Seismology

Started: 2018-01-10 02:18:31
Last activity: 2018-01-10 02:18:31
Topics: Other Meetings
Phil Cummins
2018-01-10 02:18:31
Dear Colleagues,

We would like to draw your attention to our session SE21: Seismology and Earthquake Hazard in Sedimentary Basins at the 2018 AOGS meeting in Honolulu, Hawaii, on 4-8 June 2018. In this session, we invite contributions on the structure of sedimentary basins, modelling the effects of such structure on seismic waves, and accounting for these effects in seismic hazard analysis. Please see details below.

We are keen to have a very active session, so we encourage you to please submit an abstract. Please go to the AOGS webpage (http://www.asiaoceania.org/aogs2018/public.asp?page=abstract.htm) to submit your abstract, by the deadline on 19 January.

Invited Speakers:
Prof. Kazuki Koketsu, Div. Disaster Mitigation Science, Earthquake Research Insittute, U. Tokyo
Dr. Víctor Cruz Atienza, Dept. Sismología, Instituto de Geofísica, U. Nacional Autónoma de México

Conveners:
Prof. Phil Cummins, Australian National University, Australia
Prof. Sri Widiyantoro, Bandung Institute of Technology, Indonesia

Session Description: Both the 2015 Nepal earthquake near Kathmandu and the 2017 Puebla earthquake near Mexico City are important reminders that sedimentary basins can dramatically influence the amplification and duration of earthquake waves, sometimes resulting in catastrophic building collapse. Many large cities in the Asia-Oceania region have the potential to experience basin resonance similar to that of Mexico City, but if they have no recent experience of large earthquakes their populations may be unaware of the danger. Seismologists have an important contribution to make in quantifying basin structure and its potential to enhance seismic wave motion, so that public officials can consider appropriate mitigation measures.

Fortunately, many new methods are being developed that have the potential to account for basin effects in seismic hazard analysis. Several recent Ground Motion Prediction Equations (GMPEs) have been developed that include basin terms, allowing for basin structure to be considered in Probabilistic Seismic Hazard Analysis (PSHA). New methods have also been developed to resolve and such basin structure, including deployments of massive arrays, use of horizontal-to-vertical spectral ratios, receiver function and polarisation analysis. Finally, a number of numerical codes have been made available to the seismological community that facilitate calculation of seismic waves in complex media like sedimentary basins.

For this session, we invite contributions from researchers who are developing and testing methods for resolving the structure of sedimentary basins, modelling the effects of such structure on seismic waves, and accounting for these effects in seismic hazard analysis.
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