1. University of Science, Vietnam National University, Hanoi, Vietnam
2. Department of Geology & Geophysics, College of Science, King Saud University, Riyadh, Saudi Arabia
3. Department of Biology and Geology, Physics and Inorganic Chemistry, ESCET, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
4. Research Group ‘Geofísica y Geoquímica Ambiental’, Universidad Rey Juan Carlos, Madrid, Spain
5. Union of Geophysics, Hanoi, Vietnam
6. Department of Geology, Faculty of Science, Suez University, Suez, Egypt