1. Geodynamics and Geofluids Research Group; Department of Earth and Environmental Sciences; KU Leuven; Celestijnenlaan 200E Leuven B-3001 Belgium
2. Seismology-Gravimetry; Royal Observatory of Belgium; Ringlaan 3 Brussels B-1180 Belgium
3. Geology Department; Faculty of Science; Menoufia University; Shebin El-Kom Menoufia 32512 Egypt
4. Petrobras Research Center; Av. Horácio de Macedo Cidade Universitária; 950, Ilha do Fundão Rio de Janeiro 21941-915 Brazil
5. Department of Analytical Chemistry; Ghent University; Krijgslaan 281-S12 Ghent B-9000 Belgium
6. Department of Geological Engineering; Pamukkale University; Kınıklı Campus Denizli 20070 Turkey