1. 3HAZ – WP3 report P. Briole, O. Charade, A. Nercessian (IPGP) A. Avallone (INGV) R. Charara, C. Vigny (ENS) 2 December 2006

2. Summary of 2006 activities Permanent GPS stations renewed Re-observation of ~50 GPS points in a ~50km radius around Patras GPS station PATR operational Kinematic GPS in the Panagopoula landslide PS-InSAR studies

3. Re-observation of ~50 GPS points in a ~50km radius around Patras More: https://geodesie.ipgp.jussieu.fr/spip/rubrique.php3?id_rubrique=77https://geodesie.ipgp.jussieu.fr/spip/rubrique.php3?id_rubrique=77 - The network measured in 2006 was created between 1998 and 2003. - Data processing in progress.

4. Permanent GPS stations renewed –1Gb memory (4 or 16Mb before) –Antennas with higher performance –Easier remote control of receivers (web server inside the receivers) –Computers with LINUX at the stations (Win98 before) –Improved management of power failures - GPS station PAT0 (University of Patras) - Installation and tests: October 2005 – September 2006 - Fully operational since September 2006 - GPS stations KOUN (Kounina), LIDO (Lidoriki), TRIZ (Trizonia), EYPA (Efpalion), PSAR (Psaromita) modified with new receivers and new antennas. New characteristics include:

5. Permanent GPS data & data processing Raw data available on line Daily data processing (using GAMIT) and time series of coordinates on line More : https://geodesie.ipgp.jussieu.fr/gpscope/corinth/https://geodesie.ipgp.jussieu.fr/gpscope/corinth/

6. Kinematic GPS in the Panagopoula landslide 18 points accurately positioned in the landslide (trilateration benchmarks + seismic stations) Kinematic profile available for further studies and airphoto registration

7. PS-InSAR studies PS-Insar studies continued. Developments in progress to use ROI-PAC software for PS-InSAR detection Aigion area Itea area Map of Permanent scatterers (colours indicate quality of PS, low=green, high=red)