1. U.S. Geological Survey, Menlo Park, CA 94025, USA.
2. Earthquake Administration, Pyongyang, Democratic People’s Republic of Korea.
3. State Academy of Science, Pyongyang, Democratic People’s Republic of Korea.
4. Department of Geography, University of Cambridge, Cambridge, U.K.
5. Department of Earth and Planetary Sciences, Birkbeck, University of London, London, U.K.
6. Department of Geography, King’s College London, London, U.K.
7. Environmental Education Media Project, Beijing, China.
8. Pyongyang International Information Centre of New Technology and Economy, Pyongyang, Democratic People’s Republic of Korea.