www.spice-rtn.orgMid-Term Review Meeting, February 13-14, Tutzing
Seismic wave Propagation and Imaging in Complex media: a European network
Shane MurphyEarly Stage Researcher
Host Institution: University of NaplesPlace of Origin: Dublin, IrelandAppointment Time:January 2005
Project: Source and propagation effects in micro-earthquake data: applications to Campi Flegrei (Italy)
Task Groups: TG Local Scale, TG Small Scale
Cooperation: University of Nice, University of Strasbourg, INGV Naples, INGV Rome
www.spice-rtn.orgMid-Term Review Meeting, February 13-14, Tutzing
Project Scope
(1) Dynamic Rupture Modelling
(2) Focal Mechanism & Stress Tensor Inversion
(3) Earthquake Reflector Profiling
www.spice-rtn.orgMid-Term Review Meeting, February 13-14, Tutzing
(2) Focal Mechanism & Stress Tensor Inversion
• Type of Faulting
•Grid Search
•Probabilistic Approach
• Stress Field Inversion
•Grid Search
www.spice-rtn.orgMid-Term Review Meeting, February 13-14, Tutzing
(2) Results –Test Case: Campi Flegrei
2
3
1
Most Probable Focal Mechanism
1st April1st April 19841984
Direction of Principal Stresses
www.spice-rtn.orgMid-Term Review Meeting, February 13-14, Tutzing
(3) Reflector Profiling
Imaging Subsurface layers in the Campi Flegrei area – Amplitude evaluation in order to determine gas /liquid contacts
Exploration Approach
Seismological A
pproach
www.spice-rtn.orgMid-Term Review Meeting, February 13-14, Tutzing
Future Work• Perform an assessment of the type of faulting and the general
stress field in the Campi Flegrei area
• Construct a reflector profiling code for earthquake datasets
Can this boundary be detected?Tomographic Section
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