HR: 09:00h
AN: S41D-05 INVITED    [Abstracts]
TI: LAIC Model – a New Source of Information for Seismo-Tectonics
AU: * Pulinets, S
EM: pulse@geofisica.unam.mx
AF: Institute of Geophysics UNAM, Ciudad Universitaria Delegacion Coyoacan, Mexico City, 04510, Mexico
AU: Ouzounov, D
EM: ouzounov@core2.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center/SSAI, Greenbelt Road, Greenbelt, MD 20771, United States
AU: Tramutoli, V
EM: valerio.tramutoli@unibas.it
AF: DIFA-Department of Engineering and Physics of the Environment University of Basilicata, Campus Macchia Romana, Potenza, 85100, Italy
AB: The Lithosphere-Atmosphere-Ionosphere Coupling model developed recently together with experimental data used for the model validation put forward the doubtless and urgent need to reconsider our understanding of the earthquake preparation process in its latest stage (one-two weeks before the seismic shock). The three major results are the following: 1. The thermal and ionospheric anomalies observed by the remote sensing satellites for all recent major earthquakes demonstrate that the area affected by the earthquake preparation process is quite large (the linear size is from few hundred up to thousands of kilometers) 2. The area of earthquake preparation includes not only the region of epicenter of impending earthquake but also the active tectonic faults and the borders of tectonic plates one of which is the plate where epicenter is situated and others are the adjacent plates. 3. The temporal dynamics of the thermal, and atmospheric anomalies as well as their altitude distribution from the ground surface up to the Top Of the Atmosphere (TOA), the estimated thermal energy released imply that they are produced by the air ionization process and the only source for such ionization is the alpha radioactivity of radon. One should not obligatory return to the dilatation theory which considered the large earthquake preparation areas but at the same time should to accept that tectonic stress and corresponding deformation of the crust are increasing within the interval of two weeks before the seismic shock over the large area up to the borders of interacting tectonic plates. The pre earthquake thermal anomalies consistently observed over different seismo- tectonic regions (having different crust structure) confirm the existence of radon variability to initiate the observed anomalies. Presentation will provide valuable source of information for planning the ground based gas released monitoring, radon observation and atmospheric/ionospheric interpretation related to active faulting and earthquake preparation process.
DE: 0480 Remote sensing
DE: 1040 Radiogenic isotope geochemistry
DE: 3040 Plate tectonics (8150, 8155, 8157, 8158)
DE: 4219 Continental shelf and slope processes (3002)
DE: 8123 Dynamics: seismotectonics
SC: Seismology [S]
MN: 2007 Fall Meeting