MARsite kickoff meetingDecember 19-20, 2012, Istanbul

INGV contribution to WP5Tasks 2 & 4

Alessio Piatanesi

Personnel working in the group

Contributors:

- Alessio Piatanesi, researcher- Antonella Cirella, researcher - Elisa Tinti, researcher- Laura Scognamiglio, researcher- Stefano Lorito, researcher- Fabrizio Romano, researcher

Main involvements: Tasks

Task 5.2 - Near real-time determination of the earthquakefinite-fault source parameters and models, based on GPS and strong motion data

Task 5.4 - Creating a scenario database for earthquake triggered tsunamis and Testing of the routine with well-studied events

Main involvements: Deliverables

D5.3 - Performance assessment of finite-fault inversioncodes in the Marmara configurationDelivery date: 30

D5.4 - Near real-time estimation of most relevantearthquake source parametersDelivery date: 30

D5.7 - Tectonic origin tsunami scenario database for the Marmara regionDelivery date: 36

Specific contributions: Task 5.2“Two finite-fault inversion programs will be developed, tested and compared.

The first code implements a linear technique to invert

strong motion and GPS data: it is very fast and produces a model

of the earthquake rupture process in term of heterogeneous slip

distribution, uniform rise time and constant rupture velocity.”

CPU TIME: 10s to 2hours depending on how manyconstant rise times and rupture velocities are tested

Scognamiglio et al. 2010, SRL

Specific contributions: Task 5.2“Two finite-fault inversion programs will be developed, tested and compared.

The second code is based on a simulated annealing technique: it is slower than the former, but it may handle very complicated rupture model with heterogeneous slip, rise time and rupture velocity, other than several kind of source time function.”

CPU TIME: about 15 hours

Cirella et al., GRL, 2009

Specific contributions: Task 5.4“The goal of the present task is to build up a detailed scenario database for all possible earthquakes in the Marmara Sea with a tsunamigenic potential.”

Tsunami scenario in the Marmara sea